12,675 results on '"Pottiaceae"'
Search Results
2. NOVELTIES FOR THE BRYOPHYTE FLORA OF CHACO PROVINCE, NORTH OF ARGENTINA.
- Author
-
Jimenez, Soledad
- Subjects
- *
FOREST plants , *SPECIES distribution , *AGRICULTURE , *BRYOPHYTES , *LAND use - Abstract
Background and aim: Bryophytes are an important group of plants in forest ecosystems that act as primary colonizers, moisture regulators and nutrient fixers. Due to their sensitivity to disturbance, they are used as bioindicators in impact studies. Nevertheless, there are extensive areas poorly studied that currently are undergoing significant changes due to agricultural and livestock practices, as is the case in Chaco. As part of a major project which aims to determine the impact on land-use change on the bryophyte diversity in Chaco, samples collected in the region have been analyzed with the aim of updating knowledge of the bryophyte flora in the province. M&M: Samples from preserved and non-preserved areas from Chaco were studied according to the traditional techniques for bryophytes and mounted in water-glycerin-phenol or Hoyer's solution. Results: As a result, 26 species distributed in 19 genera and 13 families, are newly recorded to Chaco Province. Conclusions: The results improved our understanding of a poorly explored flora in a region with unique characteristics. These findings reinforce the value of floristic studies to collect data about poorly known species and their distribution, and to provide a basis for applied studies. In Argentina, despite efforts made in recent decades, there is still a lack of understanding regarding bryophyte diversity. This, combined with rapid changes in land use, may lead to the alteration or disappearance of bryophyte communities before they are even studied. [ABSTRACT FROM AUTHOR] more...
- Published
- 2024
- Full Text
- View/download PDF
Catalog
3. BRYOERYTHROPHYLLUM JAMESONII (POTTIACEAE, BRYOPHYTA) EN ARGENTINA.
- Author
-
Colotti, María T. and Suárez, Guillermo M.
- Subjects
- *
DIOECIOUS plants , *ALTITUDES , *FOLIAGE plants , *GRASSLANDS , *SPECIES - Abstract
New record of the genus Bryoerythrophyllum for Argentina: B. jamesonii. With this discovery, the genus is represented in the country by six species, five in the northwest and one in the south. Bryoerythrophyllum jamesonii has been collected in high altitude grasslands and is distinguished by its dioecious reddish-brown plants; leaves are oblong-lanceolate with a broadly acute and apiculate apex; the margin is flat and recurved above the sheathing base, weakly dentate towards the apex; the costa is papillose ventrally, while smooth on the dorsal side, and the basal paracostal cells have firm walls and are not inflated. This contribution includes the description, illustration, and comments of the species mentioned, as well as a taxonomic key to compare it with its congeners present in the country. [ABSTRACT FROM AUTHOR] more...
- Published
- 2024
- Full Text
- View/download PDF
4. BRYOPHYTE FLORA OF THE SIGNIFICANT LANDSCAPE "LOWER KAMENJAK AND MEDULIN ARCHIPELAGO" (ISTRIA, CROATIA) WITH NEW AND NOTEWORTHY NATIONAL RECORDS.
- Author
-
ŠEGOTA, VEDRAN, RIMAC, ANJA, VUKOVIĆ, NINA, KOLETIĆ, NIKOLA, and ALEGRO, ANTUN
- Subjects
BOTANY ,BRYOPHYTES ,ARCHIPELAGOES ,GUERRILLAS ,LIVERWORTS ,MOSSES - Abstract
Copyright of Natura Croatica is the property of Natura Croatica and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) more...
- Published
- 2023
- Full Text
- View/download PDF
5. The phylogeny of Syntrichia: An ecologically diverse clade of mosses with an origin in South America.
- Author
-
Jauregui‐Lazo, Javier, Brinda, John C., and Mishler, Brent D.
- Subjects
- *
ECOLOGICAL niche , *PHYLOGENY , *CURRENT distribution , *SPECIES diversity , *CRUST vegetation , *MOSSES , *HABITATS - Abstract
Premise: To address the biodiversity crisis, we need to understand the evolution of all organisms and how they fill geographic and ecological space. Syntrichia is one of the most diverse and dominant genera of mosses, ranging from alpine habitats to desert biocrusts, yet its evolutionary history remains unclear. Methods: We present a comprehensive phylogenetic analysis of Syntrichia, based on both molecular and morphological data, with most of the named species and closest outgroups represented. In addition, we provide ancestral‐state reconstructions of water‐related traits and a global biogeographic analysis. Results: We found 10 major well‐resolved subclades of Syntrichia that possess geographical or morphological coherence, in some cases representing previously accepted genera. We infer that the extant species diversity of Syntrichia likely originated in South America in the early Eocene (56.5–43.8 million years ago [Mya]), subsequently expanded its distribution to the neotropics, and finally dispersed to the northern hemisphere. There, the clade experienced a recent diversification (15–12 Mya) into a broad set of ecological niches (e.g., the S. caninervis and S. ruralis complexes). The transition from terricolous to either saxicolous or epiphytic habitats occurred more than once and was associated with changes in water‐related traits. Conclusions: Our study provides a framework for understanding the evolutionary history of Syntrichia through the combination of morphological and molecular characters, revealing that migration events that shaped the current distribution of the clade have implications for morphological character evolution in relation to niche diversity. [ABSTRACT FROM AUTHOR] more...
- Published
- 2023
- Full Text
- View/download PDF
6. SYNTRICHIA PAP ILLOSA (WILSON EX SPRUCE) SPRUCE (POTTIACEAE) IN COLOMBIA.
- Author
-
Aponte, Angélica M., Gallego, M. Teresa, and Cano, María J.
- Subjects
- *
BOTANICAL specimens , *BIOLOGICAL specimens , *BOTANY , *HERBARIA , *SPRUCE , *NATURAL history museums , *BOTANICAL gardens , *PHOTOGRAPHS - Abstract
Background and aims: During the study of the bryoflora of Bogotá, individuals of Syntrichia papillosa were found in urban localities. The aim of this contribution is to confirm the presence of this epiphytic species to the Colombian flora. Materials and methods: Living plants and herbarium material from the Natural History Museum (BM), the New York Botanical Garden (NY) and Jardín Botánico José Celestino Mutis (JBB) herbaria, were analyzed. Recently collected specimens were deposited in JBB. Results: A conspectus of the morphological features of the species based on herbarium specimens are provided, along with morpho-anatomical photographs. Further, the presence of the species in different localities belonging to the area around Bogotá was confirmed. Conclusion: This paper confirms the presence of Syntrichia papillosa in the surroundings of Bogotá. This species is known from Asia, Australia, Europe, New Zealand, North America, Africa, Argentina, Bolivia, Brazil, Colombia, Chile, and Ecuador. Thus, the genus Syntrichia is represented in Colombia by eight taxa: S. andicola, S. bogotensis, S. breviseta, S. fragilis, S. kingii, S. lacerifolia, S. laevipila and S. papillosa. [ABSTRACT FROM AUTHOR] more...
- Published
- 2022
- Full Text
- View/download PDF
7. The complete chloroplast and mitochondrial genomes of Scopelophila cataractae (Mitt.) Broth. (Pottiaceae, Bryophyta)
- Author
-
Yuya Inoue, Miho Nakahara-Tsubota, and Hiromi Tsubota
- Subjects
bryophyta ,chloroplast genome ,copper moss ,mitochondrial genome ,merceyoideae ,organelle genome ,phylogenetic relationships ,pottiaceae ,Genetics ,QH426-470 - Abstract
The complete chloroplast and mitochondrial genome sequences of Scopelophila cataractae (Pottiaceae, Bryophyta) are determined. The chloroplast genome is 122,290 bp with 118 genes and the mitochondrial genome is 105,607 bp with 67 genes, both genomes are circular. This study showed the S. cataractae plastome contains the smallest genome size, and a functional trnPGGG gene, relative to other pottiaceous species. Phylogenetic inferences support the sister relationship of S. cataractae to all other pottiaceous accessions. more...
- Published
- 2022
- Full Text
- View/download PDF
8. ASSESSING BENTHIC ANIMAL AND WATER PLANT USE IN ESTIMATING RIVER AL AND CR CONTAMINATION IN THE KINOKAWA RIVER CATCHMENT.
- Author
-
Takuma Kubohara and Hiroyuki Ii
- Subjects
BENTHIC animals ,WATERSHEDS ,AQUATIC animals ,CRANE flies ,AQUATIC plants - Abstract
Benthic animals and water plants species useful for devising an index to indicate the extent of Al and Cr contamination in the Kinokawa River catchment area were studied. Studies revealed that the Al concentrations in crane fly larvae (260 to 5,260 mg/kg-dry) and bryophytes (640 to 20,000 mg/kg-dry) around a closed Cu mine were about 1.5 times higher than those around a non-mine area (530 to 3,100 for crane fly larvae and 220 to 13,000 mg/kg-dry for bryophytes). Cr concentrations in dragonfly larvae around the serpentinite (3 to 30 mg/kg-dry) were about 3 times higher than those around the non-serpentinite area (0.6 to 9 mg/kg-dry). Cr concentrations in bryophytes around the serpentinite (3 to 91 mg/kg-dry) were about 1.5 times higher than those around the non-serpentinite area (2 to 53 mg/kg-dry). Al concentrations in Pottiaceae, a kind of bryophyte found around a closed Cu mine (890 to 20,000 mg/kg-dry) were about 2.5 times higher than those around a non-mine area (6,300 to 8,000 mg/kg-dry). Cr concentrations in Pottiaceae found around the serpentinite area (91 mg/kg-dry) were about 3 times higher than those around the non-serpentinite area (3 to 29 mg/kg-dry). Additionally, crane fly larvae, dragonfly larvae, bryophytes, and Pottiaceae were widely distributed as they were sampled around both contaminated and non-contaminated areas. Therefore, it was concluded that useful species for devising an index to indicate contamination included the crane fly larvae for Al, dragonfly larvae for Cr, and the bryophytes, especially Pottiaceae for Al and Cr. [ABSTRACT FROM AUTHOR] more...
- Published
- 2022
- Full Text
- View/download PDF
9. A note on current status of Helicobarbula porphyreoneura (Müll. Hal.) M.J. Cano from semi-arid regions of Rajasthan, India.
- Author
-
Bansal, Pooja, Joshi, Yogesh, Yadav, Arjun Lal, and Sharma, R. A.
- Subjects
- *
ARID regions , *CURRENT distribution - Abstract
The present paper reports the rediscovery of Helicobarbula porphyreoneura (Müll. Hal.) M.J. Cano in and around Jaigarh fort of Jaipur, Rajasthan (India). The article not only reports in detail the delimitation of Pseudocrossidium and the segregated genus Helicobarbula, where P. porphyreoneurum is currently placed but also provides a detailed description of the species along with illustrations that have not been published yet. Besides this, the current status of the distribution of Helicobarbula and Pseudocrossidium in India is also discussed. [ABSTRACT FROM AUTHOR] more...
- Published
- 2023
- Full Text
- View/download PDF
10. Running sigmas analysis of sampled molecular paraphyly in Pottiaceae (Bryophyta).
- Author
-
ZANDER, Richard H.
- Subjects
- *
BRYOPHYTES , *STANDARD deviations , *CLADISTIC analysis , *CLEARCUTTING , *METADATA , *PARASOCIAL relationships - Abstract
A spreadsheet dealing with standard deviations allows statistical examination of continuous variables associated with paraphyly in systematics, with examples in the Pottiaceae (Bryophyta). Outlier values in taxonomic representation of distribution with the structure of (w-)x-y(-z) of continuous variables can be empirically supported. The use of the geometric mean and intuitional estimation is reexamined. Published reports of the distance between maximally distant exemplars of individual paraphyletic species in molecular cladograms in several studies were reevaluated as metadata. Levels of standard deviations were assigned with the Running Sigmas spreadsheet. A spike in width of exemplars of a paraphyletic species of a moss in the family Pottiaceae, Exobryum asperifolium, was identified as an outlier. Techniques of macroevolutionary systematics, however, assured that no different evolutionary processes were involved that may have supported an explanation of taxonomic crypsis. Instead it was found that metadata heterogeneity was the problem in that the paraphyly width of 14 molecular cladogram nodes which is evolutionarily acceptable as a clear-cut progenitordescendant lineage with no reversals. [ABSTRACT FROM AUTHOR] more...
- Published
- 2021
- Full Text
- View/download PDF
11. The mitogenome of Pseudocrossidium replicatum, a desiccation-tolerant moss
- Author
-
Miguel A. Cevallos, Gabriela Guerrero, Selma Ríos, Analilia Arroyo, Miguel Angel Villalobos, and Helena Porta
- Subjects
bryophytes ,pottiaceae ,mitochondria ,chondriome ,next-generation sequencing ,Genetics ,QH426-470 - Abstract
Bryophytes are the earliest plant group on Earth. They are a fundamental component of many ecosystems around the World. Some of their main roles are related to soil development, water retention, and biogeochemical cycling. Bryophytes include liverworts, hornworts, and mosses. The sequencing of chloroplast and mitochondria genomes has been useful to elucidate the taxonomy of this heterogeneous plant group. To date, despite their ecological importance only 41 mosses mitogenomes have been deposited in the GenBank. Here, the complete mitochondria genome sequence of Pseudocrossidium replicatum, a moss of the Pottiaceae family isolated in Tlaxcala, Mexico, is reported. The mitochondrial genome size of P. replicatum comprises 105,495 bp and contains the groups of genes described for other bryophytes mitogenomes. Our phylogenetic analysis shows that during the evolution of the mosses’ mitogenome, nad7, rps4, rpl16, and rpl10 genes were lost independently in several lineages. The complete mitogenome sequence reported here would be a useful tool for our comprehension of the evolutionary and population genetics of this group of plants. more...
- Published
- 2020
- Full Text
- View/download PDF
12. Strategies of desiccation tolerance vary across life phases in the moss Syntrichia caninervis.
- Author
-
Coe, Kirsten K., Greenwood, Joshua L., Slate, Mandy L., Clark, Theresa A., Brinda, John C., Fisher, Kirsten M., Mishler, Brent D., Bowker, Matthew A., Oliver, Melvin J., Ebrahimi, Sotodeh, and Stark, Lloyd R. more...
- Subjects
- *
CHLOROPHYLL spectra , *HUMIDITY , *MOSSES - Abstract
PREMISE: Desiccation tolerance (DT) is a widespread phenomenon among land plants, and variable ecological strategies for DT are likely to exist. Using Syntrichia caninervis, a dryland moss and model system used in DT studies, we hypothesized that DT is lowest in juvenile (protonemal) tissues, highest in asexual reproductive propagules (gemmae), and intermediate in adults (shoots). We tested the long‐standing hypothesis of an inherent constitutive strategy of DT in this species. METHODS: Plants were rapidly dried to levels of equilibrating relative humidity (RHeq) ranging from 0 to 93%. Postrehydration recovery was assessed using chlorophyll fluorescence, regeneration rates, and visual tissue damage. For each life phase, we estimated the minimum rate of drying (RoDmin) at RHeq = 42% that did not elicit damage 24 h postrehydration. RESULTS: DT strategy varied with life phase, with adult shoots having the lowest RoDmin (10‒25 min), followed by gemmae (3‒10 h) and protonema (14‒20 h). Adult shoots exhibited no detectable damage 24 h postrehydration following a rapid‐dry only at the highest RHeq used (93%), but when dried to lower RHs the response declined to <50% of control fluorescence values. Notably, immediately following rehydration (0 h postrehydration), shoots were damaged below control levels of fluorescence regardless of the RHeq, thus implicating damage. CONCLUSIONS: Life phases of the moss S. caninervis had a range of strategies from near constitutive (adult shoots) to demonstrably inducible (protonema). A new response variable for assessing degree of DT is introduced as the minimum rate of drying from which full recovery occurs. [ABSTRACT FROM AUTHOR] more...
- Published
- 2021
- Full Text
- View/download PDF
13. New records of mosses from the Dry Chaco forest of Santiago del Estero, Argentina
- Author
-
Soledad Jimenez, Guillermo M. Suárez, and Richard A. Cabral
- Subjects
Bryaceae ,Copo National Park ,Erpodiaceae ,Fabroniaceae ,Pottiaceae ,Stereophyllaceae ,Science ,Botany ,QK1-989 - Abstract
Background and aims: The bryophyte flora of Argentina is currently under study, nevertheless, there are still extensive areas unexplored, such as Santiago del Estero with only three records of bryophytes to the entire region. The aim of this work was to contribute to the knowledge of the moss flora of Santiago del Estero province, through the collection of samples in Copo National Park and surroundings. M&M: The specimens were collected in the Copo National Park and surroundings, processed and studied according to traditional techniques for bryophytes. Microscopic characters were observed with stereoscopic and light microscopy. A list of the species found is presented, with comments on the differentiating characters, habitat and distribution. Results: The following moss taxa were found to be new records for the province: Aloina rigida; Dimerodontium balansae; Didymodon umbrosus; Fabronia ciliaris; Macrocoma tenuis subsp. sullivantii; Pseudocrossidium arenicola; P. linearifolium; Stereophyllum radiculosum; Syntrichia chisosa, Trichostomum brachydontium and Venturiella glaziovii. The range of distribution of Tricherpodium beccarii is extended to the northeast of the province. Conclusions: Eleven species and one subspecies, distributed in ten genera and five families, are newly reported for the province of Santiago del Estero. The range of distribution of one species is extended to the northeast of the province. These first studies highlight the unexplored floristic richness of the region and its vulnerability due to the accelerated advance of the agricultural-livestock border. more...
- Published
- 2020
14. Circumscription and Phylogenetic Position of Two Propagulose Species of Syntrichia (Pottiaceae, Bryophyta) Reveals Minor Realignments within the Tribe Syntricheae
- Author
-
M. Teresa Gallego, María J. Cano, Juan A. Jiménez, and Juan Guerra
- Subjects
ITS ,Pottiaceae ,Sagenotortula ,Streptopogon ,Syntrichia ,S. amphidiacea ,Botany ,QK1-989 - Abstract
In the course of a worldwide revision of the genus Syntrichia, we identified problems in the circumscription of some species of the genus as well as among some allied genera grouped in the tribe Syntricheae. This is the case for the two propagulose Syntrichia amphidiacea and S. gemmascens, closely related to Streptopogon. We analyzed phylogenetic relationships between these species, based on nuclear (ITS) and two plastid (trnL-F and trnG) markers and morphological features. Species delimitation using molecular data was consistent with our preliminary morphological inference. Phylogenetic analyses were performed using maximum likelihood and Bayesian inference methods. Our results placed Syntrichia amphidiacea in the Streptopogon clade. Syntrichia gemmascens is also included in Streptopogon in spite of the discrepancy of the ITS and plastid relationships, which could be evidence of an exchange of genetic material between species in various lineages in the Pottioideae. Streptopogon is maintained as a separate genus on the basis of morphology characters, and we consider the differentiation of laminal papillae and the presence of a stem central strand as new characters in the genus. We accept Sagenotortula as distinct genus sister to Syntrichia. We consider the lack of costal dorsal epidermis and the differentiation of a crescent-shaped costal dorsal stereid band as distinctive generic characters in Syntrichia. Additionally, we include Syntrichia percarnosa as a new synonym for S. breviseta. Three names are lectotypified. more...
- Published
- 2022
- Full Text
- View/download PDF
15. NEW RECORDS OF MOSSES FROM THE DRY CHACO FOREST OF SANTIAGO DEL ESTERO, ARGENTINA.
- Author
-
Jimenez, Soledad, Suárez, Guillermo M., and Cabral, Richard A.
- Subjects
- *
TROPICAL dry forests , *MOSSES , *MICROSCOPY , *NATIONAL parks & reserves , *SPECIES distribution - Abstract
Background and aims: The bryophyte flora of Argentina is currently under study, nevertheless, there are still extensive areas unexplored, such as Santiago del Estero with only three records of bryophytes to the entire region. The aim of this work was to contribute to the knowledge of the moss flora of Santiago del Estero province, through the collection of samples in Copo National Park and surroundings. M&M: The specimens were collected in the Copo National Park and surroundings, processed and studied according to traditional techniques for bryophytes. Microscopic characters were observed with stereoscopic and light microscopy. A list of the species found is presented, with comments on the differentiating characters, habitat and distribution. Results: The following moss taxa were found to be new records for the province: Aloina rigida; Dimerodontium balansae; Didymodon umbrosus; Fabronia ciliaris; Macrocoma tenuis subsp. sullivantii; Pseudocrossidium arenicola; P. linearifolium; Stereophyllum radiculosum; Syntrichia chisosa, Trichostomum brachydontium and Venturiella glaziovii. The range of distribution of Tricherpodium beccarii is extended to the northeast of the province. Conclusions: Eleven species and one subspecies, distributed in ten genera and five families, are newly reported for the province of Santiago del Estero. The range of distribution of one species is extended to the northeast of the province. These first studies highlight the unexplored floristic richness of the region and its vulnerability due to the accelerated advance of the agricultural-livestock border. [ABSTRACT FROM AUTHOR] more...
- Published
- 2020
- Full Text
- View/download PDF
16. ZN AND FE CONTAMINATION INDEX FOR RIVER USING RIVER INSECTS AND WATER PLANTS IN THE KINOKAWA RIVER CATCHMENT.
- Author
-
Takuma Kubohara and Hiroyuki Ii
- Subjects
AQUATIC insects ,PLANT-water relationships ,WATERSHEDS ,INSECT-plant relationships ,CRANE flies - Abstract
It has not been studied whether river insects and water plants are useful for an index of Zn and Fe contamination in the Kinokawa River catchment. Useful species as an index of Zn and Fe contamination needs a high concentration in a contaminated area, a low concentration in a non-contaminated area and a high and a wide range of their concentrations. Zn and Fe concentrations of crane fly larva around the closed Cu mine were high (88 to 420 and 1,300 to 9,300 mg/kg-dry for Zn and Fe). Zn and Fe concentrations of bryophyte around the closed Cu mine were high (34 to 8,900 and 110 to 58,000 mg/kg-dry for Zn and Fe). Crane fly larva (81 to 420 and 110 to 9,300 mg/kg-dry for Zn and Fe) in river insects and bryophyte (24 to 8,900 and 110 to 58,000 mg/kg-dry for Zn and Fe) in water plants had high and a wide range of Zn and Fe concentration. Therefore, it was thought that crane fly larva and bryophyte were useful species for an index of Zn and Fe contamination. Zn concentrations of Pottiaceae and Fe concentrations of Brachytheciaceae around the Cu mine area (75 to 8,900 for Pottiaceae and 940 to 58,000 mg/kg-dry for Brachytheciaceae) were high. Pottiaceae (75 to 8,900 mg/kg-dry for Zn) and Brachytheciaceae (220 to 58,000 mg/kg-dry for Fe) had high and a wide range of metal concentration. Therefore, Pottiaceae for Zn and Brachytheciaceae for Fe were useful species for an index of metal contamination. [ABSTRACT FROM AUTHOR] more...
- Published
- 2020
- Full Text
- View/download PDF
17. The complete chloroplast and mitochondrial genomes of Scopelophila cataractae (Mitt.) Broth. (Pottiaceae, Bryophyta).
- Author
-
Inoue, Yuya, Nakahara-Tsubota, Miho, and Tsubota, Hiromi
- Subjects
BRYOPHYTES ,GENOME size ,CHLOROPLASTS ,GENOMES ,MITOCHONDRIA ,SPECIES ,PLANT mitochondria - Abstract
The complete chloroplast and mitochondrial genome sequences of Scopelophila cataractae (Pottiaceae, Bryophyta) are determined. The chloroplast genome is 122,290 bp with 118 genes and the mitochondrial genome is 105,607 bp with 67 genes, both genomes are circular. This study showed the S. cataractae plastome contains the smallest genome size, and a functional trnP
GGG gene, relative to other pottiaceous species. Phylogenetic inferences support the sister relationship of S. cataractae to all other pottiaceous accessions. [ABSTRACT FROM AUTHOR] more...- Published
- 2022
- Full Text
- View/download PDF
18. Didymodon changbaiensis (Pottiaceae, Musci), a new species from Changbai Mountain, China and its phylogenetic position based on molecular data
- Author
-
Ting-Ting Wu, Chao Feng, Tao Bian, Guo-Li Zhang, Jin Kou, and Hong-Xing Xiao
- Subjects
Asia ,phylogenetic analysis ,Dicranidae ,Didymodon ,Pottiales ,Dicranales ,Plant Science ,Bryophyta ,Biota ,Bryopsida ,Pottiaceae ,northeast China ,Leucobryaceae ,taxonomy ,Dicranodontium ,Plantae ,Bryobiotina ,Ecology, Evolution, Behavior and Systematics - Abstract
Changbai Mountain, located in northeast China, is one of the areas with the most complete natural ecosystem preservation in China. A new species, Didymodon changbaiensis C.Feng, J.Kou, H.-X. Xiao & T.-T.Wu from north slope of Changbai Mountain in Jilin Province of China is described and illustrated. It is characterised by ovate or ovate-lanceolate leaves that are appressed when dry, acute leaf apex, lamina red or reddish-orange with KOH, unistratose lamina throughout, plane and unistratose leaf margins, percurrent costa with one layer of guide cells and without ventral stereids, upper and middle laminal cells with elliptical papillae over the transverse walls between two immediately adjacent cells and basal laminal cells not differentiated from the median cells. Our morphological analyses and molecular results, based on DNA sequences of ITS, rps4 and trnM-trnV, confirm that D. changbaiensis is revealed to be sister to D. daqingii J. Kou, R.H. Zander & C. Feng. This new species is compared with similar species and its phylogenetic position and ecology are discussed. more...
- Published
- 2023
19. The mitogenome of Pseudocrossidium replicatum, a desiccation-tolerant moss.
- Author
-
Cevallos, Miguel A., Guerrero, Gabriela, Ríos, Selma, Arroyo, Analilia, Villalobos, Miguel Angel, and Porta, Helena
- Abstract
Bryophytes are the earliest plant group on Earth. They are a fundamental component of many ecosystems around the World. Some of their main roles are related to soil development, water retention, and biogeochemical cycling. Bryophytes include liverworts, hornworts, and mosses. The sequencing of chloroplast and mitochondria genomes has been useful to elucidate the taxonomy of this heterogeneous plant group. To date, despite their ecological importance only 41 mosses mitogenomes have been deposited in the GenBank. Here, the complete mitochondria genome sequence of Pseudocrossidium replicatum, a moss of the Pottiaceae family isolated in Tlaxcala, Mexico, is reported. The mitochondrial genome size of P. replicatum comprises 105,495 bp and contains the groups of genes described for other bryophytes mitogenomes. Our phylogenetic analysis shows that during the evolution of the mosses’ mitogenome, nad7, rps4, rpl16, and rpl10 genes were lost independently in several lineages. The complete mitogenome sequence reported here would be a useful tool for our comprehension of the evolutionary and population genetics of this group of plants. [ABSTRACT FROM AUTHOR] more...
- Published
- 2020
- Full Text
- View/download PDF
20. Diversity and conservation of Pottiaceae (Pottiales) in the Atlantic Rainforest
- Author
-
Denise Pinheiro da Costa
- Subjects
Brazil ,conservation status ,phytogeography ,Pottiaceae ,taxonomy ,Botany ,QK1-989 - Abstract
ABSTRACTThe taxonomy, diversity and conservation status of all species of the family Pottiaceae in the Atlantic Rainforest of Rio de Janeiro State in southeastern Brazil are presented. The Atlantic Rainforest is a globally recognized biodiversity hotspot. The treatments are based on field expeditions and studies of herbarium collections. Twenty eight species from 18 genera are discussed. A key to the genera and species is provided, with comments on their distributions and altitudinal ranges, with illustrations and evaluation of the conservation status. more...
- Published
- 2015
- Full Text
- View/download PDF
21. Notulae to the Italian flora of algae, bryophytes, fungi and lichens: 7.
- Author
-
Ravera, Sonia, Puglisi, Marta, Vizzini, Alfredo, Totti, Cecilia, Aleffi, Michele, Barberis, Giuseppina, Benesperi, Renato, von Brackel, Wolfgang, Dagnino, Davide, De Giuseppe, Antonio B., Fačkovcová, Zuzana, Gheza, Gabriele, Giordani, Paolo, Guttová, Anna, Mair, Petra, Mayrhofer, Helmut, Nascimbene, Juri, Nimis, Pier Luigi, Paoli, Luca, and Passalacqua, Nicodemo G. more...
- Subjects
- *
BRYOPHYTES , *LICHENS , *POTTIACEAE , *FUNGI classification , *CONOCEPHALUS - Abstract
In this contribution, new data concerning algae, bryophytes, fungi, and lichens of the Italian flora are presented. It includes new records and confirmations for the algae genus Chara, the bryophyte genera Cephalozia, Conardia, Conocephalum, Didymodon, Sphagnum, Tetraplodon, and Tortula, the fungal genera Endophyllum, Gymnosporangium, Microbotryum, Phragmidium, and Pluteus, and the lichen genera Candelariella, Cladonia, Flavoplaca, Lichenothelia, Peltigera, Placolecis, Rinodina, Scytinium, and Solenopsora. [ABSTRACT FROM AUTHOR] more...
- Published
- 2019
- Full Text
- View/download PDF
22. Two additions to the moss flora of the South Shetland Islands in the maritime Antarctic.
- Author
-
Wierzgoń, Mariusz, Suchan, Tomasz, and Ronikier, Michał
- Subjects
- *
POTTIACEAE , *BRYACEAE , *SPECIES distribution , *BIOGEOGRAPHY - Abstract
Tortella fragilis (Drumm.) Limpr. (Pottiaceae) and Bryum nivale Müll. Hal. (Bryaceae) are recorded for the first time from the South Shetland Islands in the northern maritime Antarctic. They were discovered in the Admiralty Bay area on King George Island, the largest island of this archipelago. The two species are briefly characterized morphologically, their habitats are described, and their distribution in the Antarctic is mapped. Discovery of these species has increased the documented moss flora of King George Island to 67 species, strengthening it in the leading position among individual areas with the richest diversity of moss flora in Antarctica. Likewise, T. fragilis and B. nivale represent remarkable additions to the moss flora of the South Shetland Islands, which currently consists of 92 species and one variety, making this archipelago by far the richest bryofloristically amongst large geographic regions of the Antarctic. Comparison of recent (2018) and old (1985) photographs revealed a significant retreat of glacial cover and suggests that the collection site was likely opened for colonization only within the last several decades. The record of T. fragilis is biogeographically relevant, and constitutes an intermediate site between the species' occurrences in the Antarctic Peninsula and southern South America. The present record of B. nivale is the fourth discovery of the species worldwide, which may be helpful for the future designation of the distribution of this extremely rare species. [ABSTRACT FROM AUTHOR] more...
- Published
- 2018
- Full Text
- View/download PDF
23. A molecular approach to the phylogeny of the moss genus Pseudocrossidium (Pottiaceae, Bryopsida) and its taxonomic implications
- Author
-
Juan A. Jiménez, Juan Guerra, María J. Cano, and M. Teresa Gallego
- Subjects
Gertrudiella ,Genus ,Phylogenetics ,Molecular phylogenetics ,Botany ,Pseudocrossidium ,Plant Science ,Biology ,biology.organism_classification ,Moss ,Ecology, Evolution, Behavior and Systematics ,Pottiaceae ,Bryopsida - Published
- 2021
- Full Text
- View/download PDF
24. Leptophascum leptophyllum (Müll.Hal.) J.Guerra & M.J.Cano (Bryophyta: Pottiaceae), a genus and species new to Egypt
- Author
-
A., Gamal M., Lashin, Abdelhaliem, Ekram M., A., Gehad A., and Hamouda
- Subjects
Pottiales ,Biodiversity ,Bryophyta ,Plantae ,Bryopsida ,Pottiaceae ,Taxonomy - Abstract
A., Gamal M., Lashin, Abdelhaliem, Ekram M., A., Gehad A., Hamouda (2022): Leptophascum leptophyllum (Müll.Hal.) J.Guerra & M.J.Cano (Bryophyta: Pottiaceae), a genus and species new to Egypt. Cryptogamie, Bryologie 20 (10): 167-171, DOI: 10.5252/cryptogamie-bryologie2022v43a10, URL: http://dx.doi.org/10.5252/cryptogamie-bryologie2022v43a10 more...
- Published
- 2022
25. Didymodon manhanensis (Pottiaceae, Bryophyta), a new species from Inner Mongolia steppe, China and its phylogenetic position, based on molecular data
- Author
-
Chao Feng, Guo-Li Zhang, Ting-Ting Wu, and Jin Kou
- Subjects
taxonomy ,Asia ,phylogenetic analysis ,Didymodon ,Manhan Mountain ,Pottiales ,Plant Science ,Bryophyta ,Plantae ,Biota ,Ecology, Evolution, Behavior and Systematics ,Bryopsida ,Pottiaceae - Abstract
Inner Mongolia steppe is one of the suitable habitats for Didymodon species and a new species, Didymodon manhanensis C. Feng & J. Kou from Manhan Mountain in semi-arid region in Inner Mongolia, China is described and illustrated. It is characterised by leaves incurved and slightly twisted when dry, spreading when moist, narrowly lanceolate from an ovate base; subulate and fragile leaf apices; distally bistratose leaf margins that are recurved in proximal 2/3–3/4; excurrent costa with guide cells in 2–3 layers and without ventral stereids; smooth laminal cells and red KOH laminal colour reaction. Our morphological analyses and molecular results, based on DNA sequences of ITS, rps4 and trnM-trnV, confirm that D. manhanensis belongs to a group that includes D. obtusus J. Kou, X.-M. Shao & C. Feng and D. daqingii J. Kou, R.H. Zander & C. Feng. This new species is compared with similar species and its phylogenetic position and ecology are discussed. more...
- Published
- 2022
26. Multiple factors influence population sex ratios in the Mojave Desert moss Syntrichia caninervis.
- Author
-
Baughman, Jenna T., Payton, Adam C., Paasch, Amber E., Fisher, Kirsten M., and Mcdaniel, Stuart F.
- Subjects
- *
MOSS reproduction , *SEX ratio among plants - Abstract
PREMISE OF RESEARCH:: Natural populations of many mosses appear highly female‐biased based on the presence of reproductive structures. This bias could be caused by increased male mortality, lower male growth rate, or a higher threshold for achieving sexual maturity in males. Here we test these hypotheses using samples from two populations of the Mojave Desert moss Syntrichia caninervis. METHODS:: We used double‐digest restriction‐site associated DNA (RAD) sequencing to identify candidate sex‐associated loci in a panel of sex‐expressing plants. Next, we used putative sex‐associated markers to identify the sex of individuals without sex structures. KEY RESULTS:: We found a 17:1 patch‐level phenotypic female to male sex ratio in the higher elevation site (Wrightwood) and no sex expression at the low elevation site (Phelan). In contrast, on the basis of genetic data, we found a 2:1 female bias at the Wrightwood site and only females at the Phelan site. The relative area occupied by male and female genets was indistinguishable, but males were less genetically diverse. CONCLUSIONS:: Our data suggest that both male‐biased mortality and sexual dimorphism in thresholds for sex expression could explain genetic and phenotypic sex ratio biases and that phenotypic sex expression alone over‐estimates the extent of actual sex ratio bias present in these two populations of S. caninervis. [ABSTRACT FROM AUTHOR] more...
- Published
- 2017
- Full Text
- View/download PDF
27. LEPTODONTIUM STELLATIFOLIUM (POTTIACEAE, BRYOPHYTA) IN LA RÉUNION ISLAND, A MAJOR RANGE DISJUNCTION.
- Author
-
ZANDER, RICHARD H. and HEDDERSON, TERRY A.
- Subjects
- *
BRYOPHYTES , *POTTIACEAE - Abstract
A species of mountainous regions of Latin America, Leptodontium stellatifolium, is reported from La Réunion Island in the Indian Ocean. This is a major geographic range disjunction. The species is illustrated and described from La Réunion material, and its considerable variation across its range and within La Réunion is discussed. Explanations of its distribution are suggested in terms of both ancient sky and ocean island spore dispersal, and recent, human-mediated introduction. We provide a key for species of Leptodontium occurring on La Réunion. [ABSTRACT FROM AUTHOR] more...
- Published
- 2017
- Full Text
- View/download PDF
28. FRUITING MATERIAL OF CHENIA LORENTZII (BRYOPHYTA, POTTIACEAE) FOUND IN ARGENTINA AND AN EVALUATION OF THE SPOROPHYTE TAXONOMIC VALUE IN THE GENUS CHENIA.
- Author
-
FLORES, JORGE R. and SUÁREZ, GUILLERMO M.
- Subjects
- *
BRYOPHYTES , *TAXONOMY , *POTTIACEAE - Abstract
In the present contribution, the sporophyte of Chenia lorentzii is described in detail and microphotographs are provided. In addition, the role of sporophytic characters is discussed in a phylogenetic context. To accomplish this task, first, a phylogenetic analysis of a reduced dataset of Pottiaceae genera was carried out by using molecular data (nad5, rps4, 26S) and combined data (morphology and molecular markers). Then, gametophytic and sporophytic characters were mapped onto the molecular tree and their fit to the phylogeny was assessed on the basis of their extra steps and the number of diagnosed nodes. Results suggest that sporophytic characters should be treated with caution when nomenclatural generic changes are proposed. [ABSTRACT FROM AUTHOR] more...
- Published
- 2017
- Full Text
- View/download PDF
29. The genus Syntrichia Brid. (Pottiaceae, Bryophyta) in the Holarctic with special consideration of North America.
- Author
-
Ochyra, Ryszard
- Subjects
POTTIACEAE ,BRYOPHYTES ,NONFICTION - Published
- 2023
- Full Text
- View/download PDF
30. Epiphytic bryophytes of the State Dendrological Park 'Olexandria' of the NAS of Ukraine
- Author
-
Lyubov Pleskach and Vitaliy Virchenko
- Subjects
Dicranum ,Dicranaceae ,biology ,Species diversity ,epiphytic bryophytes ,biology.organism_classification ,Moss ,Pottiaceae ,taxonomic diversity ,lcsh:QK1-989 ,Orthotrichum ,lcsh:Botany ,Botany ,State Dendrological Park "Olexandria" ,State Dendrological Park “Olexandria” ,Orthotrichaceae ,Acer campestre - Abstract
Investigations of the species diversity of epiphytic bryophytes of the State Dendrological Park “Olexandria” (the historical part and the “Budynok Lisnyka” plot) were conducted in 2017–2019 and revealed 40 species representing 22 genera, 17 families, seven orders, two classes, and two divisions. This corresponds to 46.51 % of the total number of detected bryophytes in the park. The leading families in the bryoflora of the park are Orthotrichaceae (9 species), Brachytheciaceae (6), Amblystegiaceae (3), Anomodontaceae (3), Dicranaceae (3), Hypnaceae (3), and Pottiaceae (2). The leading genera are Orthotrichum (9 species), Anomodon (3), and Dicranum (3). Among the identified taxa, five species (Dicranum tauricum, Orthotrichum lyellii, Porella platyphylla, Sciuro-hypnum reflexum, and Syntrichia virescens) are regionally rare within the Forest-Steppe zone of Ukraine. Most of the recorded epiphytic mosses were found on the bark of Acer platanoides (28 species), Fraxinus excelsior (27), Quercus robur (26), Acer campestre (23), and Tilia cordata (22). The least epiphytic mosses were found on the bark of conifers (Pinus sylvestris, P. strobus, Picea abies, Larix decidua, etc.). The surveyed trees in the State Dendrological Park “Olexandria” were also found such epigeal mosses as Plagiomnium cuspidatum, Ceratodon purpureus, Dicranella heteromalla, and Pohlia nutans, as well as epixilic moss Dicranum flagellare, etc. The “Budynok Lisnyka” plot hosts three species that do not occur in the park’s historical part. In particular, Lophocolea heterophylla and Sciuro-hypnum curtum were found there on Quercus robur trunks andSciuro-hypnum reflexum on Quercus rubra bark. At the same time, the historical part of the park is characterized by the number of expansive bryophytes. more...
- Published
- 2020
- Full Text
- View/download PDF
31. Evolutionary analysis of five bryophyte families using virtual fossils
- Author
-
Richard H. Zander
- Subjects
virtual fossil ,heterophyly ,punctuated equilibrium ,taxon tree ,evolution ,autophyletic ,grimmiaceae ,hypopterygiaceae ,mniaceae ,pottiaceae ,Botany ,QK1-989 - Abstract
Traditional taxa paraphyletic or polyphyletic on a molecular phylogenetic tree may be interpreted as populations of surviving ancestors that are evolutionarily static in expressed traits though labile in DNA traits used to track genetic continuity. In those cases in which re-evolution (convergence) of such taxa is deemed improbable, such heterophyly may be used to infer evolutionary series of virtual fossils reflecting macroevolution. Descent with modification of taxa is here demonstrated by reinterpreting published cladograms of molecular studies of Dicranaceae, Pottiaceae, Grimmiaceae, Hypopterygiaceae, and Mniaceae as taxon trees. Given this argument, superimposed inferred ancestors are support for the theory of punctuated equilibrium. more...
- Published
- 2009
- Full Text
- View/download PDF
32. Biomonitoring of air pollution using antioxidative enzyme system in two genera of family Pottiaceae (Bryophyta).
- Author
-
Bansal, Pooja, Verma, Sonam, and Srivastava, Alka
- Subjects
AIR pollution ,ENVIRONMENTAL monitoring ,POTTIACEAE ,PEROXIDASE ,HEMOPROTEINS - Abstract
Bryophyte particularly mosses, have been found to serve as reliable indicators of air pollution and can serve as bryometers–biological instruments for measuring air pollution. They are remarkable colonizers, as they have the ability to survive in adverse environments and are also particular in their requirement of environmental conditions, which makes them appropriate ecological indicators. The purpose of this study was to evaluate the activity of antioxidative enzymes in two mosses viz., Hyophila rosea R.S. Williams and Semibarbula orientalis (Web.) Wijk. & Marg. and assess their suitability as biomonitors. Three different locations viz., Lucknow University, Residency (contaminated sites) and Dilkusha Garden (reference site) within Lucknow city with different levels of air pollutants were used for comparison. Our results indicate that air pollution caused marked enhancement in activity of antioxidative enzymes viz., catalase, peroxidase and superoxide dismutase. All the three are capable of scavenging reactive oxygen species. In the genus S. orientalis , catalase, peroxidase and superoxide dismutase activity was minimum at the reference site Dilkusha Garden and was significantly higher at the two contaminated sites for catalase and peroxidase, whereas the difference was non significant for superoxide dismutase. In H. rosea the activity of catalase and peroxidase at the three locations was almost similar, however superoxide dismutase activity showed a significant increase in the two contaminated sites when compared to the reference site, the value being highest for Lucknow University site. It was thus observed that the two genera, from the same location, showed difference in the activity of the antioxidative enzymes. Based on our results, we recommend bryophytes as good monitors of air pollution. [ABSTRACT FROM AUTHOR] more...
- Published
- 2016
- Full Text
- View/download PDF
33. Sensitivity of the xerophytic moss Syntrichia caninervis to prolonged simulated nitrogen deposition.
- Author
-
Yuanming Zhang, Xiaobing Zhou, Benfeng Yin, and Alison Downing
- Subjects
- *
POTTIACEAE , *EFFECT of nitrogen on plants , *XEROPHYTES , *CHLOROPHYLL , *PLANT growth , *SOIL crusting , *PLANT biomass - Abstract
Background and Aims Biological soil crusts, comprising assemblages of cyanobacteria, fungi, lichens and mosses, are common in dryland areas and are important elements in these ecosystems. Increasing N deposition has led to great changes in community structure and function in desert ecosystems worldwide. However, it is unclear how moss crusts respond to increased atmospheric N deposition, especially in terms of growth and physiological parameters. The aim of this study was to understand how Syntrichia caninervis, a dominant species in moss crusts in many northern hemisphere desert ecosystems, responds to added N. Methods The population and shoot growth, and physiological responses of S. caninervis to six different doses of simulated N deposition (0, 0·3, 0·5, 1·0, 1·5 and 3·0 g N m-2 year-1) were studied over a 3 year period. Key Results Low amounts of added N increased shoot length and leaf size, whereas high doses reduced almost all growth parameters. Moss shoot density increased, but population biomass decreased with high N. Low N augmented chlorophyll b, total chlorophyll content and soluble protein concentrations, but not chlorophyll a or chlorophyll fluorescence. High N was detrimental to all these indices. Soluble sugar concentration declined with increased N, but proline concentration was not affected significantly. Antioxidant enzyme activities generally decreased with low N additions and increased with high doses of simulated N deposition. Conclusions Low amounts of added N (0-0·5 g N m-2 year-1) may enhance moss growth and vitality, while higher amounts have detrimental effects. [ABSTRACT FROM AUTHOR] more...
- Published
- 2016
- Full Text
- View/download PDF
34. Four bryophytes collected in Tunisia, new for mainland Africa
- Author
-
Vincent Hugonnot, Imen Ben Osman, Amina Daoud-Bouattour, and Serge Muller
- Subjects
Tortula protobryoides ,Plagiotheciaceae ,Plant Science ,Saccogyna viticulosa ,Bryophyta ,Saccogynaceae ,Orthotrichum ,Pseudotaxiphyllum elegans ,Plantae ,Ecology, Evolution, Behavior and Systematics ,Taxonomy ,Marchantiophyta ,biology ,Hypnales ,Ecology ,Jungermanniales ,Pottiales ,Biodiversity ,biology.organism_classification ,Bryopsida ,Pottiaceae ,Geography ,Habitat ,Orthotrichales ,Jungermanniopsida ,Mainland ,Taxonomy (biology) ,Orthotrichaceae - Abstract
Recent fieldwork in Tunisia resulted in the discovery of one liverwort (Saccogyna viticulosa (L.) Dumort.) and three mosses (Orthotrichum bistratosum (Schiffn.) J.Guerra, Pseudotaxiphyllum elegans (Brid.) Z.Iwats., Tortula protobryoides R.H.Zander) new for mainland Africa. The localities are briefly described with a focus on habitats, accompanying species, and comments on taxonomy and variability. Conservation actions are urgently needed in Tunisia in light of rising anthropogenic pressures. more...
- Published
- 2021
35. БРІОФЛОРА МІСТА БЕРЕГОВЕ (ЗАКАРПАТСЬКА ОБЛ., УКРАЇНА)
- Author
-
V. Virchenko
- Subjects
Flora ,education.field_of_study ,biology ,Ukrainian ,Population ,General Medicine ,Україна ,biology.organism_classification ,Transcarpathia ,Moss ,Archaeology ,Pottiaceae ,language.human_language ,урбанобріофлора ,Geography ,Berehove town ,Закарпаття ,language ,м. Берегове ,Bryophyte ,urbanobryoflora ,Orthotrichaceae ,Species richness ,education ,Ukraine - Abstract
Berehove is the district center in the Transcarpathian region. The town is located within the Transcarpathian lowland, in the valley of the Tysa river. Its area occupies of 19 square kilometres where about 24 thousand population lives. At the beginning of the XX century, bryophytes of the Transcarpathians studied Polish, Hungarian and Czech botanists. After the Second World War, these studies continued Ukrainian researchers, namely M.P. Slobodyan, S.V. Melnyk and others. In general, 27 species of bryophytes were known to our research.In 2018 and 2020, a modern bryofloristic study of Berehove was carried out. The botanical reserve «Ardov» was examined, as well as some parks and street plantations, where more than 80 packets of mosses were collected. As a result of the generalization of own and literary data in the town of Berehove and its surroundings, 71 species of bryophytes have been established, of which 5 species liverworts and 66 ones of mosses. Leading places in the spectrum of moss families occupy Brachytheciaceae, Pottiaceae and Orthotrichaceae. The richness of bryophyte species is observed mainly on natural and artificial rocky substrates, trunks of trees, after that – on the ground. In the botanical reserve «Ardov», a number of mosses are growing, which are not detected within the built-up part of Berehove. In this town, apart from widespread mosses, some rare in Ukraine species, namely Syntrichia latifolia, Dicranoweisia cirrata, Rhynchostegium megapolitanum are known., Берегове – районний центр у Закарпатській області. Місто розташоване в межах Закарпатської низовини, у долині річки Тиси. Його площа 19 кв. км, де проживає близько 24 тис. населення. На початку XX століття мохоподібні Закарпаття вивчали польські, угорські та чеські ботаніки. Після Другої світової війни ці дослідження продовжили українські дослідники, а саме М.П. Слободян, С.В. Мельник та ін. Загалом до наших досліджень для м. Берегове було відомо 27 видів бріофітів. В 2018 і 2020 рр. провадилось сучасне бріофлористичне дослідження м. Берегове.Було обстежено ботанічний заказник «Ардов», деякі парки та вуличні насадження, де зібрано понад 80 пакетів мохоподібних. В результаті узагальнення власних і літературних даних у м. Берегове та його околицях встановлено 71 вид мохоподібних, з них 5 видів печіночники і 66 – мохи. Провідні місця в спектрі родин мохів займають Brachytheciaceae, Pottiaceae і Orthotrichaceae. Видове багатство бріофітів спостерігається переважно на природних і штучних кам’янистих субстратах, стовбурах дерев, в меншій мірі – на грунті. В ботанічному заказнику «Ардов» зростає низка мохоподібних, котрі не виявлені в межах забудованої частини м. Берегове. Поряд з поширеними в бріофлорі міста виявлені деякі рідкісні в Україні види, а саме Syntrichia latifolia, Dicranoweisia cirrata, Rhynchostegium megapolitanum. more...
- Published
- 2021
- Full Text
- View/download PDF
36. Tortula protobryoides R. H. Zander
- Author
-
Osman, Imen Ben, Hugonnot, Vincent, Muller, Serge D., and Daoud-Bouattour, Amina
- Subjects
Tortula ,Pottiales ,Biodiversity ,Bryophyta ,Tortula protobryoides ,Plantae ,Bryopsida ,Pottiaceae ,Taxonomy - Abstract
Tortula protobryoides R.H.Zander SPECIMEN EXAMINED. — Tunisia, Tunisian Dorsal, Siliana Governorate, Delegation of Kesra: Kesra-Plateau (35°49’31.03”N, 09°21’50.13”E, 1069 m a.s.l.; site 2020-17), 11.III.2020, leg. Imen Ben Osman, Vincent Hugonnot, TUN2020-7. DISTRIBUTION. — Widespread in Europe including Macaronesia, rare in the Mediterranean region (Ros et al. 2013; Hodgetts & Lockhart 2020); W Asia (Kürschner & Frey 2020); NW America (Zander & Eckel 2007). FLORISTIC ELEMENT. — European temperate. HABITAT In grykes of horizontal karstic pavement, on a compacted substrate, in a ruderal habitat, subjected to strong overgrazing. The vascular vegetation comprises a rupicolous community anchored on rock outcrops, mixed with a very degraded holm oak forest (Quercus ilex subsp. ballota) characterised by numerous grazing-resistant species. In Europe, Tortula protobryoides also grows in calcareous habitats on compacted soil, chalky banks, tracks, and paths, and chalky soil disturbed by roads (Blockeel et al. 2014). In Tunisia, associated species are ruderal: Bryum argenteum Hedw., Didymodon acutus (Brid.) K.Saito and Microbryum Schimp.spp. Tunisian colonies were fertile (a few sporophytes present). The species was very scattered, with only a few stems. As a pioneer species, Tortula protobryoides may certainly benefit from being trampled by grazing stocks, but for the Tunisian population, overgrazing is particularly intense and may not be compatible with the long-term conservation even of taxa adapted to disturbance. Monitoring would be desirable in such a situation to determine whether T. protobryoides can withstand such destructive grazing. COMMENTS Tortula protobryoides is mainly characterised by sporophytic characters. It has a relatively short seta, making ovoid urn slightly exceeding upper perichetial leaves, and stegocarpic capsules, with rudimentary peristome and persistent rostrate operculum (Guerra 2006)., Published as part of Osman, Imen Ben, Hugonnot, Vincent, Muller, Serge D. & Daoud-Bouattour, Amina, 2021, Four bryophytes collected in Tunisia, new for mainland Africa, pp. 213-219 in Cryptogamie, Bryologie 20 (16) on page 217, DOI: 10.5252/cryptogamie-bryologie2021v42a16, http://zenodo.org/record/7822348, {"references":["ROS R. M., MAZIMPAKA V., ABOU- SALAMA U., ALEFFI M., BLOCK- EEL T. L., BRUGUES M., CROS R. M., DIA M. G., DIRKSE M. G., DRAPER I., EL- SAADAWI W., ERDAG A., GANEVA A., GABRIEL R., GONZALEZ- MANCEBO J. M., GRANGER C., HERRNSTADT I., HUGONNOT V., KHALIL K., KURSCHNER H., LOSADA- LIMA A., LUIS L., MIFSUD S., PRIVITERA M., PUGLISI M., SABOVLJEVIC M., SERGIO C., SHABBARA H. M., SIM- SIM M., SOTIAUX A., TAC- CHI R., VANDERPOORTEN A. & WERNER O. 2013. - Mosses of the Mediterranean, an annotated checklist. Cryptogamie, Bryologie 34: 99 - 283. https: // doi. org / 10.7872 / cryb. v 34. iss 2.2013.99","HODGETTS N. & LOCKHART N. 2020. - Checklist and country status of European bryophytes. Update 2020. Irish Wildlife Manuals 123. National Parks and Wildlife Service, Department of Culture, Heritage and the Gaeltacht, Ireland, 214 p.","KURSCHNER H. & FREY W. 2020. - Liverworts, Mosses and Hornworts of Southwest Asia (Marchantiophyta, Bryophyta, Anthocerotophyta): A systematic treatise with keys to genera and species occurring in Afghanistan, Bahrain, Iraq, Iran, Israel, Jordan, Kuwait, Lebanon, Oman, Qatar, Saudi Arabia, Sinai Peninsula, Syria, Turkey, United Arab Emirates and Yemen (inc. Socotra Island). 2 nd enlarged and revised edition. Nova Hedwigia, Beihefte, Beih. 149. Gebruder Borntraeger Verlagsbuchhandlung, Science Publishers, 267 p.","ZANDER R. H. & ECKEL P. M. 2007. - Tortula Hedwig, in FLORA OF NORTH AMERICA EDITORIAL COMMITEE (ed.), Flora of North America north of Mexico. Volume 27 Bryophyta, part 1. Oxford University Press, New York - Oxford: 586 - 603.","GUERRA J. 2006. - Protobryum J. Guerra & M. J. Cano, in GUERRA J., CANO M. J. & ROS R. M. (eds.), Flora Briofitica Iberica. Volume 3. Universidad de Murcia, Sociedad Espanola de Briologia, Murcia: 208 - 216."]} more...
- Published
- 2021
- Full Text
- View/download PDF
37. Chionoloma tenuirostre var. tenuirostre M. Alonso, M. J. Cano & J. A. Jiménez var. tenuirostre
- Author
-
Thouvenot, Louis and Müller, Frank
- Subjects
Chionoloma tenuirostre (hook. & taylor) m.alonso, m.j.cano & j.a.jiménez var. tenuirostre ,Chionoloma tenuirostre ,Pottiales ,Chionoloma ,Biodiversity ,Bryophyta ,Plantae ,Bryopsida ,Pottiaceae ,Taxonomy - Abstract
* Chionoloma tenuirostre (Hook. & Taylor) M.Alonso, M.J.Cano & J.A.Jiménez var. tenuirostre SPECIMENS EXAMINED. — New Caledonia. North Province, Poya 15 km NE, limestone massif Roche d’Adio, 21°14’S, 165°15’E, on limestone rockface, c. 200-250 m, 06.IX.2003, Müller NC464 (DR). COMMENTS In New Caledonia, three species of the genus Chionoloma Dixon were hitherto known, namely Chionoloma dubium (Thér.) M.Alonso, M.J.Cano & J.A.Jiménez, C. orthodontum (Müll.Hal.) M.Alonso, M.J.Cano & J.A.Jiménez, and C. schlimii (Müll.Hal.) M.Alonso, M.J.Cano & J.A.Jiménez (Alonso et al. 2019). Record details of our own collections of C. dubium and C. schlimii (as C. crassicostatum (D.H.Norris & T.J.Kop.) M.Alonso, M.J.Cano & J.A.Jiménez) are given in Thouvenot et al. (2018). Here we report a fourth species of the genus, C. tenuirostre, as new for New Caledonia. This species is most similar to C. orthodontum, but is differing by its leaf basal marginal cells, which do not extend up the margin to form a V-shaped pattern, and its dorsal stereid band of the costa, which is usually larger than the ventral band (Alonso et al. 2019). Chionoloma tenuirostre var. tenuirostre has a cosmopolitan distribution, except for arctic regions (Alonso et al. 2019), the nearest known records are in Australia, New Zealand and Papua New Guinea., Published as part of Thouvenot, Louis & Müller, Frank, 2021, Contribution to the bryophyte flora of New Caledonia IV. Species new to the country, new localities together with taxonomic notes, pp. 181-196 in Cryptogamie, Bryologie 20 (13) on page 192, DOI: 10.5252/cryptogamie-bryologie2021v42a13, http://zenodo.org/record/7822275, {"references":["ALONSO M., JIMENEZ J. A. & CANO M. J. 2019. - Taxonomic Revision of Chionoloma (Pottiaceae, Bryophyta). Annals of the Missouri Botanical Garden 104: 563 - 632. https: // doi. org / 10.3417 / 2019381","THOUVENOT L., MULLER F. & GRADSTEIN S. R. 2018. - Contribution to the bryophyte flora of New Caledonia III. New and interesting records, new combinations and new synonyms. Cryptogamie, Bryologie 39: 361 - 376. https: // doi. org / 10.7872 / cryb / v 39. iss 3.2018.361"]} more...
- Published
- 2021
- Full Text
- View/download PDF
38. Contribution to the Bryophyte Flora of New Caledonia IV. Species New to the Country, New Localities Together with Taxonomic Notes
- Author
-
Frank Müller and Louis Thouvenot
- Subjects
Flora ,Lepidoziaceae ,Bryaceae ,Synonym ,Plant Science ,Calobryales ,Stereophyllaceae ,Frullaniaceae ,Genus ,Porellales ,Plantae ,Marchantiales ,Aneuraceae ,Marchantiophyta ,Hookeriaceae ,Hypnales ,biology ,Pottiales ,Biodiversity ,Pottiaceae ,Geography ,Jungermanniopsida ,Bryales ,Key (lock) ,Metzgeriales ,Marchantiopsida ,Orthotrichaceae ,Haplomitriopsida ,Plagiotheciaceae ,Bryophyta ,Type (biology) ,Hookeriales ,Botany ,Balantiopsidaceae ,Myuriaceae ,Ecology, Evolution, Behavior and Systematics ,Taxonomy ,Acrobolbaceae ,Jungermanniales ,biology.organism_classification ,Sematophyllaceae ,Moss ,Bryopsida ,Lejeuneaceae ,Taxon ,Orthotrichales ,Bryophyte ,Hypnaceae ,Lophocoleaceae ,Haplomitriaceae ,Ricciaceae - Abstract
Thirteen liverworts and the same number of mosses are reported from recent collections in New Caledonia and from some type specimens kept in PC. Among them, 13 are new to this French oversea territory (seven liverworts and six mosses, including the new genus Rhaphidostichum M.Fleisch.). Ectropothecium papillosulum Ther. is a new synonym of E. sodale (Sull.) Mitt. and Isopterygium sarasinii Ther. is proposed as a synonym of I. albescens (Hook.) A.Jaeger. Hymenostomum francii Ther. is transferred to Weissia Hedw. as W. francii (Ther.) Thouvenot comb. nov. and H. aristatulum Broth. & Paris is transferred to Trichostomum Bruch as T. tonghoueensis Thouvenot nom. nov. The occurrences in New Caledonia of nine species are confirmed. That includes three liverworts and one moss only known from their types, one liverwort only known from the types of synonyms, one liverwort and one moss new to North Province, and a new locality for the liverwort Cololejeunea morobensis (Pocs) Pocs that complement single earlier report. As a result, New Caledonian bryophyte flora includes 1064 species or infraspecific taxa (522 mosses, 528 liverworts and 14 hornworts). All the species involved are commented, three of them are described, seven illustrated and a key to the New Caledonian Myurium Schimp. species is provided. more...
- Published
- 2021
- Full Text
- View/download PDF
39. Hydrogonium javanicum Hilp
- Author
-
Thouvenot, Louis and Müller, Frank
- Subjects
Hydrogonium ,Pottiales ,Biodiversity ,Bryophyta ,Plantae ,Bryopsida ,Pottiaceae ,Hydrogonium javanicum ,Taxonomy - Abstract
* Hydrogonium javanicum (Dozy & Molk.) Hilp. SPECIMEN EXAMINED. — New Caledonia. North Province, Forêt Plate 10 km SW, 21°06’S, 164°59’E, rocks along a brook, 07.IX.2003, Müller NC579 (DR). COMMENTS The species, confirmed by Ph. Sollman, is widely distributed in East and SE Asia (Japan, China, India, Ceylon, Philippines, Papua New Guinea) (Norris & Koponen 1989) and was recently reported also from Fiji (Müller 2012)., Published as part of Thouvenot, Louis & Müller, Frank, 2021, Contribution to the bryophyte flora of New Caledonia IV. Species new to the country, new localities together with taxonomic notes, pp. 181-196 in Cryptogamie, Bryologie 20 (13) on page 192, DOI: 10.5252/cryptogamie-bryologie2021v42a13, http://zenodo.org/record/7822275, {"references":["NORRIS D. H. & KOPONEN T. 1989 - Bryophyte flora of the Huon Peninsula, Papua New Guinea. XXVIII. Pottiaceae (Musci). Acta Botanica Fennica 137: 81 - 138.","MULLER F. 2012. - Additions to the moss flora of Taveuni Island (Fiji, South Pacific). Polish Botanical Journal 57 (1): 197 - 203."]} more...
- Published
- 2021
- Full Text
- View/download PDF
40. Weissia francii Thouvenot 2021, comb. nov
- Author
-
Thouvenot, Louis and Müller, Frank
- Subjects
Pottiales ,Biodiversity ,Bryophyta ,Plantae ,Weissia ,Bryopsida ,Pottiaceae ,Weissia francii ,Taxonomy - Abstract
Weissia francii (Thér.) Thouvenot, comb. nov. Hymenostomum francii Thér. Bulletin de l’Académie Internationale de Géographie Botanique 19: 21 (1909). Hymenostomum clausum Broth. & Paris Öfversigt af Finska Vetenskaps-Societetens Förhandlingar 51A(17): 11. 1909. — Type: New Caledonia. “Ad latera humida semitae ad Ouen Toro et ad Yahoué”, 17.VI.1908, A. Le Rat s.n. (isosyn-, PC[PC0735856, PC0735857]!). TYPE. — New Caledonia. Vallée de la Nondoué (Nouméa), 17.VIII.1908, Franc s.n. (lecto-, selected here: PC [PC 0697624!]). OTHER SPECIMENS EXAMINED. — New Caledonia. South Province, "au pied du Mont Mou, sur la terre du chemin, en plein soleil, 300 m ", 18.VII.1909, Franc s.n. PC [(PC 0735860)]; "Bois du Sud, sur la terre", IX.1915, Fran c s.n. PC [(PC 0735852)]; "Mt Coffin, près Nouméa, 50 m ", 20.IX.1910, Franc s.n. PC [(PCO 735855)]. DESCRIPTION FROM THE LECTOTYPE Habit Plant small, gametophyte 1 mm high, with sporophyte 3 mm high. When dry, leaves erect incurved, involute tubular; when wet, patent spreading, somewhat recurved. Stem Simple, shorter, 0.1 mm wide, cortical cells poorly defined, 1-3 layers of cells like the medullar but a little smaller and orange-brown tinged, central strand present. Leaves 0.9-1.1 mm long, 0.2-0.3 mm wide, narrowly lanceolate with lower parts sub-sheathing, hyaline, rectangular, margins plane, sharply narrowed by the inward winding of the margins in upper part, margins above strongly involuted, confluent in cucullate apices with acute mucrones. Costae strong, excurrent in acute mucrones, ovate-reniform in section, 40 µm wide, 30 µm high, ventral epidermis present, papillose, dorsal lacking, 2-3 guide cells, ventral stereid band weak, dorsal stereid band large. Cells Upper laminal cells opaque, 6-8 µm wide, quadrate-hexagonal, firm walled, strongly to slightly bulging or not, with many furcate papillae; basal ones smooth, translucent, wide rectangular, thin-walled, walls narrower and thicker toward margins, transitional cells smooth, progressively smaller and thick-walled, not ascending along the margins. Perichaetial leaves Similar to vegetative ones. Sporophyte Setae 1.5 mm long, twisted to the left, capsules rostrate, ovoid, cleistocarpous., urns 450 µm long, 300 µm wide, rostra 350 µm long; spores 20–25 µm, finely verrucose. COMMENTS Since genus Hymenostomum is now a synonym of Weissia (see above, under Trichostomum tonghoueensis), this species can be transferred to the genus Weissia, according to the following characters: dry habit crispate, margins strongly involute, capsules cleistocarpous. It differs from the other Weissia species in New Caledonia by the small size, the cleistocarpous capsules, the leaf costae with weakly developed ventral stereid bands., Published as part of Thouvenot, Louis & Müller, Frank, 2021, Contribution to the bryophyte flora of New Caledonia IV. Species new to the country, new localities together with taxonomic notes, pp. 181-196 in Cryptogamie, Bryologie 20 (13) on pages 193-194, DOI: 10.5252/cryptogamie-bryologie2021v42a13, http://zenodo.org/record/7822275 more...
- Published
- 2021
- Full Text
- View/download PDF
41. Gymnostomiella M. Fleisch (Pottiaceae, Pottiales, Bryopsida): a new generic record to eastern ghats of India
- Author
-
Ananthaneni Sreenath and Boyina Ravi Prasad Rao
- Subjects
Geography ,biology ,Gymnostomiella ,Botany ,General Medicine ,biology.organism_classification ,Pottiales ,Pottiaceae ,Bryopsida - Published
- 2021
- Full Text
- View/download PDF
42. Three new cleistocarpous species of the genera Tortula and Microbryum (Pottiaceae, Bryophyta)
- Author
-
T. N. Otnyukova
- Subjects
Geography ,biology ,Botany ,Microbryum ,Plant Science ,biology.organism_classification ,Ecology, Evolution, Behavior and Systematics ,Pottiaceae - Abstract
Three new cleistocarpous species belonging to the genera Tortula and Microbryum were found among specimens in herbaria LE and MHA identified as Pterygoneurum kozlovii (redefined as Pterygoneurum sibiricum), Tortula acaulon, Microbryum vlassovii and Microbryum curvicollum. The new species Tortula arenaria found in collections from the Republic of Dagestan is similar to M. curvicollum in having curved costa but differs in large and roughly papillose spores (vs. smal ler and smooth in M. curvicollum), branched papillae (vs. simple papillae in M. curvicollum). The new species Microbryum lydiae found in collections from the Republic of Armenia is similar to M. vlassovii in having ventral outgrowths of costa presented as elongated parenchymatous cells but differs in long-mammillose leaf lamina and costa cells (long-mammillose-papillose in M. vlassovii); smaller, warty papillose spores (vs. larger, streaky papillose in M. vlassovii). The new species Tortula irinae is similar to cleistocarpous species of the genus Pterygoneurum in having ventral outgrowths of costa, but differs in outgrowths presented as a pad of large, elongated parenchymatous cells (vs. as low lamellae of several rows of small cells in height in P. kozlovii and high lamellae in P. sibiricum). By ventral outgrowths of costa presented as elongated parenchymatous cells it is also similar to some species of the genus Microbryum, from which it differs in leaf lamina and costa cells with several branched papillae (vs. long-mammillose-papillose leaf lamina and costa cells with one branched papilla in M. vlassovii and long-mammillose leaf lamina and costa cells with one large mammilla in M. lydiae). Tortula irinae resembles T. acaulon in having cleistocarpous immersed capsule. Tortula acaulon is a highly variable species represented by several morphotypes of uncertain taxonomic status but strongly differing in many characters of sporophytes and gametophytes. The most important diagnostic characters are the degree of papillae expression and the shape of leaf and costa papillae. By the degree of papillae expression and the shape of papillae, several morphotypes of T. acaulon were revealed: 1 – morphotype without papillae, 2 – morphotype with simple papillae, 3 – morphotype with branched papillae. Tortula irinae differs from T. acaulon morphotypes in having ventral outgrowths of costa lacking in T. acaulon morphotypes. How ever, of all T. acaulon morphotypes studied, T. irinae can be most probably confused with T. acaulon “branched papillae morphotype” in having strongly branched papillae of costa and leaf cells but easily differing in shape of ventral costa cells protruding as a pad of large, elongated parenchymatous cells in T. irinae vs. ventral costa cells smaller, not protruding in T. acaulon “branched papillae morphotype”. Tortula irinae is widespread in Asian part of Russia [Chukotka Autonomous Area, Republic of Sakha (Yakutia), Trans-Baikal Territory]. It was also found in kept in LE moss collections from Asia (Khazakhtan, Mongolia) and Europe (Ukraine). more...
- Published
- 2020
- Full Text
- View/download PDF
43. Effects of salt on selected bryophyte species tested under controlled conditions
- Author
-
D Aneta Sabovljevic, S Marko Sabovljevic, Milorad Vujičić, and Marija Ćosić
- Subjects
physcomitrella patens ,0106 biological sciences ,biology ,Hennediella heimii ,entosthodon hungaricus ,hennediella heimii ,lcsh:QK900-989 ,Plant Science ,biology.organism_classification ,Physcomitrella patens ,010603 evolutionary biology ,01 natural sciences ,Moss ,Pottiaceae ,mosses ,Funariaceae ,Halophyte ,Botany ,lcsh:Plant ecology ,Bryophyte ,Protonema ,salt stress ,010606 plant biology & botany - Abstract
Bryophytes inhabit all ecosystems on the Earth except seas. Thus, it is commonly accepted to ask are there real halophytes among bryophytes? However, some species do inhabit salty grassland or even brackish waters. Not much research has been done on the physiological reaction of moss species to salt stress. In order to study these responses, we selected three moss species, two of which are considered to be halophytes−Entosthodon hungaricus (Funariaceae), Hennediella heimii (Pottiaceae) and the non-halophytic model moss Physcomitrella patens (Funariaceae) and tested salt effects on them in controlled conditions. The idea was to show if there is tolerance to salt in the selected moss species and to document it if there is a difference in salt tolerance among them. Established in vitro moss cultures of gametophores were used to test various developmental parameters for the selected moss species. Morpho-developmental parameters (secondary protonema diameter and the index of multiplication) and biochemical parameters (pigment content and antioxidative capacity) were analysed in relation to salt concentration and time of exposure. All of the tested moss species tolerated salt stress to some extent and during some time of exposure to it. Recovery after salt stress depended both on the concentration of salt and duration of the stress. The three tested moss species did not show similar patterns of response to salt stress. more...
- Published
- 2020
- Full Text
- View/download PDF
44. Bafra İlçesi’nin (Samsun) Briyofit Florası
- Author
-
Muhammet Ören, Sezgi Çalişkan, and Serhat Ursavaş
- Subjects
bryophyte ,Porella ,biology ,samsun ,Pharmaceutical Science ,Jungermanniaceae ,biology.organism_classification ,bafra ,Moss ,Pottiaceae ,lcsh:QK1-989 ,flora ,lcsh:Biology (General) ,Complementary and alternative medicine ,Orthotrichum ,lcsh:Botany ,Botany ,turkey ,Pharmacology (medical) ,Bryophyte ,Marchantiophyta ,Orthotrichaceae ,lcsh:QH301-705.5 - Abstract
Bu çalışma ile Samsun ili Bafra ilçesinin briyofit florasının belirlenmesi amaçlanmıştır. Araştırma alanından 2014-2015 yıllarında 40 farklı lokaliteden 476 briyofit örneği toplanmıştır. Örneklerin teşhis edilmesi sonucunda, ciğerotlarından (Marchantiophyta) 32 ve karayosunlarından (Bryophyta) 133 olmak üzere, toplamda 51 familya ve 104 cinse ait 165 tür ve tür altı takson tespit edilmiştir. Araştırma alanında Boynuzotlarına (Anthoceratophyta) ait örneğe rastlanmamıştır. Yüksek takson sayısına sahip familyalar karayosunları için Pottiaceae (25), Brachytheciaceae (24), Orthotrichaceae (11), Mniaceae (10) ve Amblystegiaceae (9) iken, ciğerotları için Lophocoleaceae (4), Jungermanniaceae (3), Marchantiaceae (3), Porellaceae (3)’dir. Cins düzeyinde bir sıralama yapıldığında karayosunlarında Orthotrichum (9), Plagiomnium (6), Hypnum (6) ve Fissidens (5); ciğerotlarından Marchantia (3), Lophocolea (3) ve Porella (3) cinsleri fazla takson içermektedirler. Yapılan literatür çalışmalarına göre 19 taksonun Henderson 1961 kareleme sistemine göre A3 karesi için yeni olduğu tespit edilmiştir. more...
- Published
- 2019
- Full Text
- View/download PDF
45. Infraspecific molecular trees are associated with serial macroevolution in Pottiaceae (Bryophyta)
- Author
-
R.H. Zander
- Subjects
macroevolution ,biology ,bayesian posterior probabilities ,Систематика, флористика, географія рослин ,cladogram ,linear descent ,metadata ,presorted molecular strains ,Macroevolution ,biology.organism_classification ,Pottiaceae ,lcsh:QK1-989 ,age ,Evolutionary biology ,lcsh:Botany ,paraphyly - Abstract
The analytic orientation of this paper is intended as a replacement for the antiquated but still prevalent phylogenetic inferential models and techniques of the late 20th сentury that are focused entirely on shared descent. Serial descent, that is, progenitor to descendant, may occur at the species or infraspecies level. In molecular systematics, species level paraphyly occurs when two examples of the same species are separated on a cladogram by a second species. This implies linear macroevolution of the second species from the first. Molecular cladograms often show cladistic structure (branching) among examples of the same species. If well-supported, such indicates a potential for evolution. A range of infraspecific and intraspecific cladistic structure in species of Pottiaceae (Bryophyta) was demonstrated in previously published molecular cladograms and data sets of other authors. This includes well-supported cladistic structure of molecular strains, and well-supported paraphyly involving other species. Large numbers of base pair changes among strains are considered here evidence of evolvability and increasing age of a species. Infraspecific strains are apparently lost in older species through speciation and extinction. Cluster analysis using DNA metadata of Oxystegus species matched published molecular cladograms to a large extent. The fact that apparent molecular strains are present in both nonparaphyletic and paraphyletic species, about half the species studied, shore up the theory that internal racial differentiation at the molecular level leads to or signals serial descent of multiple extant morphotaxa. It is because much infraspecific molecular cladistic structure exists that newly speciated taxa are already strongly cladistically dichotomized. Thus, the ultimate source of molecular paraphyly is internal to each species, and does not imply polyphyly by convergent species or cryptic taxa. Molecular systematics cannot effectively model progenitor-descendant radiation. Species with many strains are potential sources of future biological diversity. Recognition of differential evolvability may allow facilitation of complex, interactive, diverse ecosystems successfully tracking climate change. Аналітична спрямованість цієї статті полягає у прагненні замінити застарілі, але все ще поширені філогенетичні моделі та методи кінця 20-го століття, які повністю базуються на концепції спільного походження. Послідовне походження, тобто від попередніх предків до нащадків, може відбуватися на рівні видів або внутрішньовидових таксонів. У молекулярній систематиці парафілія на видовому рівні має місце тоді, коли два представники одного виду розділені на кладограмі іншим видом. Це означає послідовну (лінійну) макроеволюцію другого виду від першого. Молекулярні кладограми часто демонструють кладистичну структуру (галуження філогенетичних ліній) серед зразків одного виду. За умов високої підтримки, це вказує на еволюційний потенціал. Спектр міжвидової та внутрішньовидової кладистичної структури у видів родини Pottiaceae (Bryophyta) був продемонстрований у раніше опублікованих молекулярних кладограмах та даних інших авторів. Це включає добре підтримувану кладистичну структуру молекулярних ліній та добре підтримувану парафілію щодо інших видів. Значна кількість змін нуклеотидних пар серед ліній одного виду у такому випадку вважається тут свідченням еволюційної спроможності та збільшення часу існування виду. Внутрішньовидові філогенетичні лінії у старших за віком видів, очевидно, втрачаються через видоутворення та вимирання. Кластерний аналіз із використанням метаданих ДНК видів Oxystegus значною мірою збігається з опублікованими молекулярними кладограмами. Той факт, що очевидні молекулярні лінії наявні як у непарафілетичних, так і у парафілетичних видів (загалом приблизно у половини з досліджених видів), підтверджує гіпотезу про те, що внутрішня расова диференціація на молекулярному рівні призводить до послідовного походження багатьох нині існуючих морфотаксонів, або ж свідчить про цей процес. Новоутворені таксони вже є сильно кладистично дихотомізованими саме тому, що у межах предкових видів існуює значна внутрішньовидова молекулярна кладистична структура. Таким чином, основне джерело молекулярної парафілії є внутрішнім феноменом для кожного виду, а тому воно не обов'язково свідчить про поліфілію завдяки ймовірному існуванню конвергентних видів чи криптичних таксонів. Молекулярна систематика не може ефективно моделювати диверсифікацію у системі "предок-нащадок". Види з багатьма філогенетичними лініями є потенційним джерелом майбутнього біологічного різноманіття. Визнання диференційованої еволюційної спроможності може сприяти утворенню та розвитку складних, інтерактивних, різноманітних екосистем, які успішно реагують на зміни клімату. more...
- Published
- 2019
- Full Text
- View/download PDF
46. The Scandinavian Syntrichia ruralis complex (Musci, Pottiaceae): a chaos of diversification
- Author
-
María Teresa Gallego, Lars Hedenäs, and Jochen Heinrichs
- Subjects
0106 biological sciences ,Chaos (genus) ,Calcicola ,Biodiversity ,Plant Science ,Biology ,biology.organism_classification ,010603 evolutionary biology ,01 natural sciences ,Moss ,Pottiaceae ,Taxon ,Evolutionary biology ,Plastid ,Internal transcribed spacer ,Ecology, Evolution, Behavior and Systematics ,010606 plant biology & botany - Abstract
This study focusses on the molecular and morphological variation among Scandinavian species within the Syntrichia ruralis complex (S. calcicola, S. norvegica, S. ruraliformis, S. ruralis) of the moss family Pottiaceae, plus the similar-looking S. princeps. Molecular variation was explored based on the internal transcribed spacer 1 (ITS1), and the plastid atpB-rbcL spacer and rpl16 G2 intron. The relationships of the S. ruralis complex taxa were evaluated by including twelve additional, morphologically defined Syntrichia species in the ingroup, including S. subpapillosissima that was here shown to occur in Scandinavia. The molecular evidence favours a wide circumscription of the S. ruralis complex, including the species around S. caninervis and some other ones but excluding S. princeps, and that these species are closely related. ITS1 paralogues were revealed in almost one-third of the samples, and for those cloned between 2 and 8 variants were found, including specimens with paralogues belonging to two (2 cases) or three (1) different species. Together with several cases of discrepancy between ITS1 and plastid relationships, this could suggest an exchange of genetic material between species and may explain the extensive and partly overlapping morphological variation among some of them. Syntrichia subpapillosissima and S. ruralis var. epilosa may represent special phenotypes within S. ruraliformis or S. ruralis, but studies of more material of these are required to decide their correct status. more...
- Published
- 2019
- Full Text
- View/download PDF
47. Mosses Diversity of Tumpak Sewu Waterfall, Lumajang, East Java
- Author
-
M Tajudin Al Fajri and Romaidi Romaidi
- Subjects
education.field_of_study ,geography ,geography.geographical_feature_category ,Java ,biology ,Population ,Identification key ,Forestry ,Waterfall ,biology.organism_classification ,Moss ,Pottiaceae ,Bryaceae ,Epiphyte ,education ,computer ,computer.programming_language - Abstract
Mosses or bryophytes, belonging to the lower plants, can grow on higher plants (as epiphyte), stone (epilytic), bark (corticolus), and the surface of the soil. One of the important places in East Java and having a variety of potential mosses is Tumpak Sewu Waterfall. In this place, moss grows well because of the condition of the nature, humidity, and abundant air. This study aimed to identify and calculate the population of mosses at Tumpak Sewu Waterfall, Lumajang, East Java. The research sampling has been performed along hiking trip, riverside and tourist area of Tumpak Sewu Waterfall. Quadratic method with grid lines with a plot size of 1x1 m² on the right and left sides of the river was used to collect and calculate mosses population. Mosses identification was performed using mosses identification key. The population data obtained from this study were analyzed by calculating Frequency, Dominancy and Important Value Index (IVI). This study found 7 species of mosses in which 3 species belong to Family Marcahntiaceae, 2 species belongs to Bryaceae and 1 species belongs to Pottiaceae and Anthocerotaceae, respectively. The highest of IVI value is specimen K2, corresponds to Pohlia flexuosa W.J. Hooker, with 78.178%, and the lowest of IVI value is specimen K6, corresponds to Marchantia sp. with 4.524%. It can be concluded that Tumpak Sewu Waterfall has diversity for mosses that could be useful to conserve Indonesian natural resources especially lower plants. more...
- Published
- 2019
- Full Text
- View/download PDF
48. Embryos of a moss can be hardened to desiccation tolerance: effects of rate of drying on the timeline of recovery and dehardening in Aloina ambigua (Pottiaceae).
- Author
-
Brinda, John C., Stark, Lloyd R., Clark, Theresa A., and Greenwood, Joshua L.
- Subjects
- *
MOSSES , *POTTIACEAE , *PLANT embryology , *DEHYDRATION , *PLANT physiology , *DRYING - Abstract
Background and Aims Embryonic sporophytes of the moss Aloina ambigua are inducibly desiccation tolerant (DT). Hardening to DT describes a condition of temporary tolerance to a rapid-drying event conferred by a previous slow-drying event. This paper aimed to determine whether sporophytic embryos of a moss can be hardened to DT, to assess how the rate of desiccation influences the post-rehydration dynamics of recovery, hardening and dehardening, and to determine the minimum rate of drying for embryos and shoots. Methods Embryos were exposed to a range of drying rates using wetted filter paper in enclosed Petri dishes, monitoring relative humidity (RH) inside the dish and equilibrating tissues with 50 % RH. Rehydrated embryos and shoots were subjected to a rapid-drying event at intervals, allowing assessments of recovery, hardening and dehardening times. Key Results The minimum rate of slow drying for embryonic survival was ~3.5 h and for shoots ~9h. Hardening to DT was dependent upon the prior rate of drying. When the rate of drying was extended to 22 h, embryonic hardening was strong (>50 % survival) with survival directly proportional to the post-rehydration interval preceding rapid drying. The recovery time (repair/reassembly) was so short as to be undetectable in embryos and shoots desiccated gradually; however, embryos dried in <3.5 h exhibited a lag time in development of ~4d, consistent with recovery. Dehardening resulted in embryos incapable of surviving a rapid-drying event. Conclusions The ability of moss embryos to harden to DT and the influence of prior rate of drying on the dynamics of hardening are shown for the first time. The minimum rate of drying is introduced as a new metric for assessing ecological DT, defined as the minimum duration at sub-turgor during a drying event in which upon rehydration the plant organ of interest survives relatively undamaged from the desiccating event. [ABSTRACT FROM AUTHOR] more...
- Published
- 2016
- Full Text
- View/download PDF
49. Impacts of Environmental Heterogeneity on Moss Diversity and Distribution of Didymodon (Pottiaceae) in Tibet, China.
- Author
-
Song, Shanshan, Liu, Xuehua, Bai, Xueliang, Jiang, Yanbin, Zhang, Xianzhou, Yu, Chengqun, and Shao, Xiaoming
- Subjects
- *
POTTIACEAE , *PLANT species , *PLANT diversity , *PHYTOGEOGRAPHY , *CLIMATE change - Abstract
Tibet makes up the majority of the Qinghai-Tibet Plateau, often referred to as the roof of the world. Its complex landforms, physiognomy, and climate create a special heterogeneous environment for mosses. Each moss species inhabits its own habitat and ecological niche. This, in combination with its sensitivity to environmental change, makes moss species distribution a useful indicator of vegetation alteration and climate change. This study aimed to characterize the diversity and distribution of Didymodon (Pottiaceae) in Tibet, and model the potential distribution of its species. A total of 221 sample plots, each with a size of 10 × 10 m and located at different altitudes, were investigated across all vegetation types. Of these, the 181 plots in which Didymodon species were found were used to conduct analyses and modeling. Three noteworthy results were obtained. First, a total of 22 species of Didymodon were identified. Among these, Didymodon rigidulus var. subulatus had not previously been recorded in China, and Didymodon constrictus var. constrictus was the dominant species. Second, analysis of the relationships between species distributions and environmental factors using canonical correspondence analysis revealed that vegetation cover and altitude were the main factors affecting the distribution of Didymodon in Tibet. Third, based on the environmental factors of bioclimate, topography and vegetation, the distribution of Didymodon was predicted throughout Tibet at a spatial resolution of 1 km, using the presence-only MaxEnt model. Climatic variables were the key factors in the model. We conclude that the environment plays a significant role in moss diversity and distribution. Based on our research findings, we recommend that future studies should focus on the impacts of climate change on the distribution and conservation of Didymodon. [ABSTRACT FROM AUTHOR] more...
- Published
- 2015
- Full Text
- View/download PDF
50. DIDYMODON RIGIDULUS VAR. SUBULATUS (THÉR. & BARTRAM EX E.B. BARTRAM) R.H. ZANDER, NEW TO THE MOSS FLORA OF MONGOLIA AND ASIA.
- Author
-
DONG-PING ZHAO, TSEGMED, TSOGIIN, and XUE-LIANG BAI
- Subjects
- *
PLANT species , *LEAVES , *PLANT growth , *TUBERS - Abstract
The article focuses on a study conducted on the plant species Didymodon rigidulus variety subulatus found in Mongolia. The plants grow in dense turfs, have monomorphic leaves, and rhizoidal tubers are absent. The variety subulatus differs from Didymodon rigidulus variety rigidulus regarding the longer subula, ovate-lanceolate leaves, and bistratose patches in the upper middle of the leaf. more...
- Published
- 2015
- Full Text
- View/download PDF
Discovery Service for Jio Institute Digital Library
For full access to our library's resources, please sign in.