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Four species of the genus Sticta are described as new from Bolivia, based on morphological examination and phylogenetic analysis of the fungal ITS barcoding marker. Additionally, two species are reported as new to Bolivia (their identification confirmed by molecular data) and one previously reported species is confirmed by molecular data for the first time. Detailed morphological and anatomical descriptions are provided for all new species. Two of the new species, S. isidiolobulata Ossowska, B. Moncada, Lücking & Kukwa and S. madidiensis Ossowska, B. Moncada, Lücking & Kukwa belong to clade I, as defined in previous studies. In contrast, S. montepunkuensis Ossowska, B. Moncada, Lücking & Kukwa and S. macrolobata Ossowska, B. Moncada, Lücking & Kukwa, also described here as new to science, belong to clade III. Sticta isidiolobulata has an irregular to suborbicular thallus of medium size, with isidia developing into spathulate lobules, cyanobacterial photobiont and apothecia with entire to weakly-crenate margins. The large irregular thallus of the cyanobacteria-associated S. macrolobata has broad lobes, apothecia with verrucous to tomentose margins and cyphellae with raised margins, whereas S. madidiensis has a medium-sized, palmate to irregular thallus with a stipe, but without vegetative propagules and apothecia. Sticta montepunkuensis has large and irregular thalli with green algae as photobiont, apothecia with crenate to verrucous margins and urceolate cyphellae with a wide pore and a scabrid basal membrane. Two species, S. beauvoisii Delise and S. riparia Merc.-Díaz are reported as new to Bolivia (the latter also as new to South America) and belong to clade III. Sticta tomentosa (Sw.) Ach., species confirmed from Bolivia by molecular data, belongs to clade II. Sticta beauvoisii is characterised by a smooth yellowish-brown upper surface with darker apices and abundant, marginal isidia and a brown lower surface with golden-chocolate brown primary tomentum and sparse, golden-brown rhizines. Sticta riparia has a strongly branched thallus, with undulate lobes and abundant, marginal, palmate, grey to dark brown phyllidia and greyish-brown lower surface with the primary tomentum absent towards the margins. Sticta tomentosa has palmate, bluish thalli with white cilia and abundant, submarginal apothecia and creamy-white lower surface with a sparse, white primary tomentum. [ABSTRACT FROM AUTHOR]

We describe 43 new lichen species in the family Graphidaceae, mainly from the Amazon basin: Fissurina bispora, F. diamantica, F. endothallina, F. lirelloreagens, F. reticulolirellina, Graphis inspersonorstictica, G. polystriatosubmuriformis, G. viridithallina, Heiomasia hypostictica, Leucodecton aurantiacum, Mangoldia thallolomoides, Myriochapsa negativa, M. triseptata, Myriotrema inspersosticticum, M. reticulatum, M. roseum, M. xanthonicum, Ocellularia coronatoverrucosa, O. griseosorediata, O. inspersomuriformis, O. inspersulascens, O. microschizidiata, O. norsorediata, O. pallidocolumellata, O. pedicellata, O. pertusella, O. pseudocyphellata, O. psorinspersa, O. psorsorediata, O. roseoisidiata, O. sorediopseudochapsa, O. verruciinspersa, O. vulcanica, O. wirthiotremoides, Phaeographis aureopruinosa, P. coccinea, P. fuscobilabiata, P. macrocephalica, P. norscalpturata, P. pallidoxanthonica, Rhabdodiscus lineatus, Stegobolus negativus, and Thalloloma xanthohypoleptum (the last species also from Puerto Rico). Relatively many are fertile but also form vegetative propagules. A few of the species contain no mature ascospores, but are so deviating from any other described species that we decided to describe them nonetheless. Also, we propose the following 22 new combinations for species of Graphidaceae that were previously described from Brazil and currently are accepted species but were so far assigned to the other genera: Allographa basaltica (≡ Graphis basaltica Kremp.), A. brevissima (≡ Graphis brevissima Fée), A. byrsonimae (≡ Graphina byrsonimae Redinger), A. heteroplaca (≡ Graphina heteroplaca Müll.Arg.), A. platypoda (≡ Phaeographina platypoda Zahlbr.), A. pseudoserpens (≡ Graphis pseudoserpens Chaves & Lücking), A. subargentata (≡ Graphis subargentata S.C.Feuerst., Dal Forno & Eliasaro), A. tricolorata (≡ Graphina tricolorata Redinger), Diorygma album (≡ Graphina alba Müll.Arg.), Fissurina adscripturiens (≡ Graphis adscripturiens Nyl.), F. egenella (≡ Graphina egenella Müll.Arg.), Graphis fasciata (≡ Ustalia fasciata Eschw.), Mangoldia lecideicarpa (≡ Graphina lecideicarpa Zahlbr.), O. endocrocea (≡ O. cinchonarum var. endocrocea Müll.Arg.), O. minarum (≡ Thelotrema minarum Vain.), Phaeographis atrolabiata (≡ Phaeographina atrolabiata Redinger), Phaeographis cheilomegas (≡ Graphis cheilomegas Fée), P. coriaria (≡ Phaeographina coriaria M.Wirth & Hale), P. crassa (≡ Platygramme crassa Fée), P. oxalifera (≡ Phaeographina oxalifera Redinger), P. scriptitata (≡ Phaeographina scriptitata C.W.Dodge), and Stegobolus trachodes (≡ Thelotrema trachodes Nyl.). Finally, we report several species new to Brazil or to one of the states: Allographa pitmanii new to Amapá, Cryptoschizotrema minus new to Alagoas, Glaucotrema glaucophaenum new to Amapá, Graphis pyrrhocheiloides new to Amapá, Graphis subserpentina new to Pará, Melanotrema astrolucens new to Brazil in Amazonas and Pará, Myriotrema hartii new to Amazonas, O. bullata new to Brazil in Pará, O. inspersipallens new to Brazil in Rondônia, O. jutaratiae new to Amapá, O. parvidisca new to Brazil in Amapá, O. rondoniana new to Alagoas, and Thelotrema wilsoniorum new to Brazil in Amapá. [ABSTRACT FROM AUTHOR]

A first integrative survey of the genus Usnea in the southern Philippines, taking into account morphological, anatomical, chemical and molecular characters, resulted in the recognition of 20 taxa, including three species new to science: Usnea angulata Ach., U. baileyi (Stirt.) Zahlbr., U. bismolliuscula Zahlbr., U. brasiliensis (Zahlbr.) Motyka, U. confusa Asah., U. croceorubescens Stirt., U. dasaea Stirt., U. himalayana C. Bab., U. krogiana P. Clerc, U. longissima Ach., U. nidifica Taylor, U. norsticornuta A. Gerlach & P. Clerc sp. nov. (characterized by a moderately thick cortex and by the presence of norstictic acid), U. paleograndisora A. Gerlach & P. Clerc sp. nov. (characterized by an orange subcortical pigmentation in the medulla, with enlarging soralia and a moderately thick and shiny cortex), U. pectinata Taylor, U. pygmoidea (Asahina) Y. Ohmura, U. rubicunda Stirt., U. rubrotincta (Stirt.) Zahlbr., U. spinulifera (Vain.) Motyka, U. subscabrosa Motyka and U. yoshihitoi P. Clerc & A. Gerlach sp. nov. (characterized by a lax medulla with non-conglutinated hyphae). Usnea krogiana is a new record for Asia; Usnea brasiliensis , Usnea confusa and U. croceorubescens are new records for the Philippines. This is the first phylogenetic study to include DNA sequences of Usnea from the Philippines. Molecular data from the ITS rDNA (76 newly generated sequences) are presented for most taxa except for U. himalayana , U. longissima and U. subscabrosa. At least six further taxa remain unidentified, awaiting the collection of additional specimens. [ABSTRACT FROM AUTHOR]

We present a novel identification tool called PhyloKey , based on the method of morphology-based, phylogenetic binning developed within the software package RAxML. This method takes a reference data set of species for which both molecular and morphological data are available, computes a molecular reference tree, maps the morphological characters on the tree, and computes weights based on their level of consistency versus homoplasy using maximum likelihood (ML) and maximum parsimony (MP). Additional units for which only morphological data are known are then binned onto the reference tree, calculating bootstrap support values for alternative placements. This approach is modified here to work as an identification tool which uses the same character coding approach as interactive keys. However, rather than identifying individual samples through a progressive filtering process when entering or selecting characters, query samples are binned in batch mode to all possible alternative species in the tree, with each placement receiving a bootstrap support adding to 100% for all alternative placements. In addition to the fact that, after scoring a character matrix, a large number of specimens can be identified at once in short time, all possible alternative identifications are immediately apparent and can be evaluated based on their bootstrap support values. We illustrate this approach using the basidiolichen genus Cora , which was recently shown to contain hundreds of species. We also demonstrate how the PhyloKey approach can aid the restudying of herbarium samples, adding further value to these collections and contributing with large quantitative data matrices to 'non-molecular museomics'. Our analysis showed that PhyloKey identifies species correctly with as low as 50% of the characters sampled, depending on the nature of the reference tree and the character weighting scheme. Overall, a molecular reference tree worked best, but a randomized reference tree gave more consistent results, whereas a morphological reference tree performed less well. Surprisingly, even character weighting gave the best results, followed by parsimony weighting and then maximum likelihood weighting. [ABSTRACT FROM AUTHOR]

A survey of the lichen family Graphidaceae in Macaronesia (Madeira, the Canary Islands, and the Azores) is presented, with detailed treatments for the genera Allographa, Fissurina, and Graphis. All other species are listed and new records provided. A key to all Graphicacy known from Macaronesia, except the thelotremoid species, is presented. The following species are newly described: Fissurina azorica, Fissurina elaiocarpoides, Fissurina nigrolabiata, and Topeliopsis juniperina. Many species are newly recorded for one or more islands of the three archipelagos. [ABSTRACT FROM AUTHOR]

In this study, we revised the lichen collection at the Herbario Amazonico Colombiano (coah) in Bogotá, Colombia. The collection has a total of nearly 2,400 specimens, with some duplicates in the Herbario Nacional (col) and in the herbarium of the Botanic Garden in Berlin (b). The revision of 1,861 specimens revealed 574 species in 142 genera and 44 families, among which there are 28 species new to science and seven new combinations. Previously, 324 species had been reported from the Colombian Amazon, and our revision resulted in a new total of 666 species, more than doubling the previous number. All 666 species are enumerated here in the first comprehensive checklist of lichens from the Colombian Amazon. A total of 157 new country records (53 already reported in the new Catalogue of Fungi of Colombia) increase the number of lichens known from Colombia to 2,827. The following species are described as new: Allographa exuens, differing from A. argentata by the lirellae with the corticiform layer soon flaking off and exposing the black labia, the only finely inspersed hymenium, and the narrower ascospores; A. guainiae, differing from Graphis syzygii in the prominent ascomata with lateral thalline margin and whitish thallus remnants between the striae; A. labiata, differing from A. immersa in the prominent lirellae with conspicuous, entire, exposed labia, an inspersed hymenium, longer ascospores, and stictic acid as secondary compound; A. lichexanthonica, differing from A. sitiana in producing lichexanthone; A. sessilis, differing from A. contortuplicata in the muriform ascospores; A. suprainspersata, differing from A. angustata in the very thin thalline cover of the ascomata and the apically inspersed hymenium; Astrothelium bireagens, differing from A. cinnamomeum by the broader, apically flattened perithecia covered by a thin, ferruginous-red, K+ deep purple pruina and internally with an ochraceous-yellow, K+ deep yellow pigment; A. stromatolucidum, differing from A. neovariolosum in the distinctly pseudostromatic ascomata; Carbacanthographis submultiseptata, differing from C. multiseptata in the narrower ascospores and the indistinct periphysoids; Chapsa inconspicua, differing from C. angustispora in the smooth to uneven versus farinose thallus and in the much shorter ascospores; Coenogonium velutinellum, differing from C. pineti in the finely velvety, rather thick thallus composed of irregular to erect, densely packed algal threads covered by a thin pseudocortex; Fellhanera naevioides, differing from F. naevia in the finely dispersed, minutely crenulate thallus and the blackish apothecia; Fissurina sipmanii, differing from F. amazonica in the shorter and broader, slightly gaping, somewhat chroodiscoid ascomata, and the amyloid ascospores; Glyphis lirellizans, differing from Glyphis substriatula in the erumpent vs. prominent lirellae with lateral thalline margin and the exposed disc; Graphis papillifera, differing from G. stellata in the lirellae lacking a thalline margin, very elongate and irregularly to radiately branched and not in stellate clusters, and in the 5-septate ascospores; G. pseudoglyphis, differing from Graphis stellata in the non-verrucose thallus, the branched lirellae which do not, however, form stellate clusters, and the shorter ascospores; Malmidea flavimarginata, differing from M. bacidinoides in the pale yellow, K+ deep yellow medulla and yellow, K+ deep yellow excipular crystals, as well as the smaller ascospores; M. isidiopiperina, differing from M. taytayensis in the smaller ascospores; M. papillitrailiana, differing from M. trailiana in the papillose apothecial margins; Myriotrema araracuarense, differing from Myriotrema muluense in the non-annulate pores of the apothecia and in the longer ascospores; Ocellularia areolata, differing from Ocellularia rhicnoporoides in the pigmented medulla and the larger, more prominent apothecia with completely carbonized excipulum; O. caquetensis, differing from Ocellularia rotundifumosa in the absence of a columella; O. inspersipallens, differing from O. viridipallens in the inspersed hymenium and the 5–7-septate ascospores; O. rufocinctoides, differing from O. rufocincta in the thallus lacking large and irregular crystal clusters, in the more prominent apothecia and in the smaller ascospores; O. sipmanii, differing from Ocellularia abbayesiana in the smaller, 3-septate ascospores; Pseudopyrenula daironii, differing from all other species of the genus in the aggregate perithecia with shared ostiole and the internal orange-red pigment granules lining the perithecial wall; Pyrenula asymmetrica, differing from Pyrenula papilligera in the longer, almost rectangular ascospores; and Redingeria pseudostromatica, differing from other species in the genus in the pseudostromatic ascomata with small, rounded apothecia, in combination with 1-septate ascospores. In addition, the following seven new combinations are proposed: Bacidina cyanophila (≡ Bacidina simplex var. cyanophila), Malmidea sorediifera (≡ Lecanora sorediifera), Ocellularia fuscescens (≡ Thelotrema fuscescens), Phaeographis cymbegrapha (≡ Graphis cymbegrapha; = Phaeographis amazonica Staiger], Polyblastidium flavosquamosum (≡ Heterodermia flavosquamosa), Polyblastidium lamelligerum (≡ Parmelia lamelligera), and Polyblastidium rottboellii (≡ Anaptychia hypoleuca var. rottboellii). [ABSTRACT FROM AUTHOR]

We sequenced over 200 recent specimens of Lecanora s.lat. from Brazil, delimiting 28 species in our material. Many seem to represent undescribed species, some of which being morphologically and chemically similar to each other or to already described species. Here, we present a phylogenetic analysis based on ITS, including our specimens and GenBank data. We describe nine new species. The purpose of the paper is to illustrate the diversity of the genus in Brazil, not to focus on segregate genera. However, we found that all Vainionora species cluster together and these will be treated separately. Other Lecanora species with dark hypothecium clustered in several different clades. Species with the morphology of Lecanora caesiorubella, in which currently several subspecies with different chemistry and distribution are recognized, fall apart in different, distantly related clades, so they cannot be regarded as subspecies but should be recognized at species level. A key is given for the Lecanora species from Brazil. [ABSTRACT FROM AUTHOR]

Using the genus Casearia, we assessed the status of nested singletons: individual specimens corresponding to accepted species but in molecular trees appearing nested within clades of closely related species. Normally, such cases would be left undecided, while on the other hand, timely taxonomic decisions are required. We argue that morphological, chorological, and ecological data can be informative to illuminate patterns of speciation. Their use can provide a first step in testing taxon concepts at species level. We focused on five cases of nested singletons in trees of the genus Casearia. We employed PCA and cluster analysis to assess phenotypic differentiation. Using geocoordinates, we calculated niche space differentiation based on 19 bioclim variables, by means of PCA and niche equivalency and similarity tests and generated dot maps. We found that the singletons were morphologically distinctive in two of the five cases (Casearia selloana and C. manausensis), relatively distinctive in two other cases (C. zizyphoides and C. mariquitensis), and partially overlapping in the last case (C. grandiflora). For two cases (C. mariquitensis and C. selloana), ecological niche space was broadly overlapping, in two cases it was found broadly nested (C. grandiflora and C. zizyphoides), and in one case narrowly nested (C. manausensis), but in no case niche differentiation was observed. Niche overlap, similarity and equivalency showed corresponding patterns. Given these data, one would interpret C. selloana and C. manausensis as presumably well‐distinguished taxa, their narrow distribution ranges suggesting recently emerging lineages. The other three cases are not clearcut. Morphological data would suggest particularly C. grandiflora conspecific with C. arborea, but differences in the distribution are intriguing. Our approach would reject the notion of potential synonymy based on nested phylogenetic placement for at least two of the five cases. The other case also shows no complete lack of differentiation which would support synonymy. [ABSTRACT FROM AUTHOR]

Tropical regions harbor a substantial diversity of lichenized fungi, but face numerous threats to their persistence, often even before previously unknown species have been described and their evolutionary relationships have been elucidated. Megalaria (Ramalinaceae) is a lichen-forming genus of fungi that produces crustose thalli, and includes a number of lineages occupying tropical rain forests; however, taxonomic and phylogenetic work on this clade is limited. Here we leverage both morphological and sequence data to describe a new species from the tropics, M. pachaylenophila. This taxon forms a crustose thallus, lacks secondary metabolites, and occurs in mangrove forests of Thailand. We supplemented molecular data from this species with data from other species, including two genera related to and occasionally included in Megalaria, namely Catillochroma and Lopezaria. Our analyses revealed Catillochroma species form a monophyletic group embedded within Megalaria, and we therefore recognize this clade at the subgeneric level. Since we only included the type species of Lopezaria in this study, we refrain from proposing a taxonomic conclusion for that clade at the moment. Several taxonomic combinations are made to reflect phylogenetic evidence supporting the inclusion of these species in Megalaria. [ABSTRACT FROM AUTHOR]

Six species of Sticta are described as new to science on the basis of material from Bolivia and supported by phylogenetic analysis of the fungal ITS barcoding marker. The species were resolved in all three of the clades (I, II, III) widespread and common in the Neotropics, as defined in an earlier study on the genus. Comparison with material from neighbouring countries (i.e. Colombia, Ecuador, Peru) suggests that these new species may be potentially endemic to the Bolivian Yungas ecoregion. For each species, a detailed morphological and anatomical description is given. Sticta amboroensis Ossowska, Kukwa, B. Moncada & Lücking is a medium-sized green-algal species with laminal to submarginal apothecia with hirsute margins and with light to dark brown lower tomentum. Sticta aymara Ossowska, Kukwa, B. Moncada, Flakus, Rodriguez-Flakus & Lücking is a comparatively small cyanobacterial taxon with Nostoc as photo-biont, laminal, richly branched, aggregate isidia and a golden to chocolate-brown lower tomentum. The medium-sized, cyanobacterial S. bicellulata Ossowska, Kukwa, B. Moncada & Lücking has cyanobacterial photobiont, bicellular ascospores, apothecia with white to golden-brown hairs on the margins, K+ violet apothecial margin (ring around disc) and epihymenium and a white to dark brown lower tomentum. In contrast, the green-algal species, S. carrascoensis Ossowska, Kukwa, B. Moncada & Lücking is characterised by its large size, apothecia with dark brown hairs on the margins and a yellow medulla. The cyanobacterial S. catharinae Ossowska, B. Moncada, Kukwa, Flakus, Rodriguez-Flakus & Lücking forms stipitate thalli with Nostoc as photobiont, abundant, laminal to submarginal apothecia and a golden-brown lower tomentum. Finally, the cyanobacterial S. pseudoimpressula Ossowska, Kukwa, B. Moncada & Lücking produces laminal apothecia with an orange-yellow line of pruina along the margins which reacts K+ carmine-red. In addition to the six new Bolivian taxa, the cyanobacterial S. narinioana B. Moncada, Ossowska & Lücking is described as new from Colombia and it represents the closely-related sister species of the Bolivian S. aymara; it differs from the latter largely in the marginal instead of laminal isidia. [ABSTRACT FROM AUTHOR]

Copyright of Revista de la Academia Colombiana de Ciencias Exactas, Físicas y Naturales is the property of Academia Colombiana de Ciencias Exactas, Fisicas y Naturales 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.)

We provide an updated, worldwide key to species of the genus Carbacanthographis, which is characterized by lirellate ascomata, a carbonized excipulum, warty periphysoids, and mostly non-amyloid ascospores. New collections and revision of herbarium material revealed 17 species new to science: Carbacanthographis acanthoamicta, with a thinly corticate thallus, a completely carbonized excipulum, apically warty paraphyses, small and (sub-)muriform ascospores, and salazinic acid; C. acanthoparaphysata, with a completely carbonized excipulum, apically warty paraphyses, small and submuriform, amyloid ascospores, and protocetraric acid; C. aggregata, with aggregated lirellae, a completely carbonized excipulum, small and submuriform ascospores, and salazinic acid; C. amazonica, with a completely carbonized excipulum, small and transversely septate ascospores, and stictic acid; C. aptrootii, with a completely carbonized excipulum, apically warty paraphyses, small to medium-sized and transversely septate, amyloid ascospores, and norstictic acid; C. brasiliensis, with a completely carbonized excipulum, apically warty paraphyses, medium-sized and transversely septate, amyloid ascospores, and no substances; C. chionophoroides, with a completely carbonized excipulum, small and transversely septate ascospores, and protocetraric acid; C. halei, with a corticate thallus, a completely carbonized excipulum, small and transversely septate ascospores, and stictic acid; C. latispora, with a completely carbonized excipulum, very large and transversely septate ascospores, and stictic acid; C. megalospora, with a corticate thallus, a completely carbonized excipulum, very large muriform ascospores, and stictic acid; C. multiseptata, with a completely carbonized excipulum, very large and transversely septate ascospores, and protocetraric acid; C. novoguineensis, with a completely carbonized excipulum, small and submuriform ascospores, and salazinic acid; C. pseudorustica, with a corticate thallus, a completely carbonized excipulum, medium-sized and transversely septate, amyloid ascospores, and stictic acid; C. salazinicoides, with a corticate thallus, a completely carbonized excipulum, medium-sized and muriform ascospores, and salazinic acid; C. sipmaniana, with a completely carbonized excipulum, apically warty paraphyses, small and transversely septate, weakly amyloid ascospores, and norstictic acid; C. spongiosa, with a completely carbonized excipulum, inspersed hymenium, small, transversely septate ascospores, and stictic acid; and C. subchionophora, with a completely carbonized excipulum, small and transversely septate ascospores, and protocetraric acid. New molecular data confirm the position of C. megalospora in the genus. In addition, we propose one new combination, Carbacanthographis nematoides. The known world distribution of four species is expanded: C. amicta is reported from Papua New Guinea; C. induta from Thailand; C. marcescens from French Guyana and Papua New Guinea; and C. stictica from Colombia, French Guyana, Venezuela and Suriname. For all species, short descriptions and distribution notes are given, and most species are illustrated. [ABSTRACT FROM AUTHOR]

It is now a decade since The International Commission on the Taxonomy of Fungi (ICTF) produced an overview of requirements and best practices for describing a new fungal species. In the meantime the International Code of Nomenclature for algae, fungi, and plants (ICNafp) has changed from its former name (the International Code of Botanical Nomenclature) and introduced new formal requirements for valid publication of species scientific names, including the separation of provisions specific to Fungi and organisms treated as fungi in a new Chapter F. Equally transformative have been changes in the data collection, data dissemination, and analytical tools available to mycologists. This paper provides an updated and expanded discussion of current publication requirements along with best practices for the description of new fungal species and publication of new names and for improving accessibility of their associated metadata that have developed over the last 10 years. Additionally, we provide: (1) model papers for different fungal groups and circumstances; (2) a checklist to simplify meeting (i) the requirements of the ICNafp to ensure the effective, valid and legitimate publication of names of new taxa, and (ii) minimally accepted standards for description; and, (3) templates for preparing standardized species descriptions. [ABSTRACT FROM AUTHOR]

Sticta is a subcosmopolitan genus most diverse in the tropics. Traditionally, many taxa were considered to be widespread and morphologically variable, following broadly circumscribed morphodemes. Among these is the S. weigelii morphodeme, characterized by a cyanobacterial photobiont and rather narrow, flabellate to truncate or tapering lobes producing predominantly marginal isidia. Molecular phylogenetic analyses focusing on the ITS fungal barcoding marker revealed that this morphodeme represents several species, some of which are only distantly related to each other. Here we describe two species and one subspecies of this morphodeme as new to science, based on analysis of 400 specimens, for 344 of which we generated ITS barcoding data. The two new species, S. andina and S. scabrosa, are broadly distributed in the Neotropics and also found in Hawaii, where the latter is represented by the new subspecies, S. scabrosa subsp. hawaiiensis; in the case of S. andina, the species is also found in the Azores. Sticta andina exhibits high phenotypic variation and reticulate genetic diversification, whereas the phenotypically rather uniform S. scabrosa contains two main haplotypes, one restricted to Hawaii. Sticta andina occurs in well-preserved montane to andine forests and paramos, whereas the two subspecies of S. scabrosa are found in tropical lowland to lower montane forests, tolerating disturbance and extending into anthropogenic habitats. Citation: Moncada B., Mercado-Díaz J. A., Smith C. W., Bungartz F., Sérusiaux E., Lumbsch H. T. & Lücking R. 2021: Two new common, previously unrecognized species in the Sticta weigelii morphodeme (Ascomycota: Peltigeraceae). – Willdenowia 51: 35–45. Version of record first published online on 24 February 2021 ahead of inclusion in April 2021 issue. [ABSTRACT FROM AUTHOR]

Copyright of Revista de la Academia Colombiana de Ciencias Exactas, Físicas y Naturales is the property of Academia Colombiana de Ciencias Exactas, Fisicas y Naturales 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.)

During ecological studies on corticolous lichens in Restinga vegetation in northeastern Brazil, many species of crustose Caliciaceae formerly placed in the collective genus Buellia s.l. were collected. A new species was discovered and is described here—Gassicurtia restingiana D.S.Andrade, M.Cáceres & Aptroot differs from G. catasema in the absence of lichexanthone. Two identification keys are provided, one for all species of Gassicurtia known from Brazil, and one for crustose, epiphytic, non-mazaediate species of Caliciaceae found in Restinga areas in northeastern Brazil. [ABSTRACT FROM AUTHOR]

Phylogenetic analysis of some foliicolous lichens collected in Hainan Province, China, revealed a new lineage morphologically similar to Porina but phylogenetically related to Strigulaceae (Dothideomycetes), differing from the latter in ascus type. The monospecific genus Tenuitholiascus gen. nov. is introduced for the single species, T. porinoides sp. nov., which is placed in the new, monogeneric family Tenuitholiascaceae, sister to Strigulaceae in Strigulales. The new taxon closely resembles the genus Porina in external morphology and ascospore type, as well as the thin-walled asci and unbranched paraphyses. Yet, it is entirely unrelated to the latter, which belongs in class Lecanoromycetes in the order Gyalectales. [ABSTRACT FROM AUTHOR]

Molecular phylogenetic analyses revealed a high diversity of unrecognized species of Lecanora s.l. in Brazil, with many near-cryptic species that require a combined analysis of morphology, secondary metabolites and molecular sequences for accurate delimitation. In this study, a new species of Lecanora is described which is morphologically close to L. achroa and L. helva. The new species was collected in the Guadalupe environmental protection area, located in the municipality of Barra de Sirinhaém, a mangrove region in the state of Pernambuco in the Brazilian Northeast. Lecanora parachroa sp. nov. agrees with L. achroa in morphological and anatomical features but differs in secondary chemistry, lacking usnic acid and 2′-O-methylperlatolic acid. Molecular data using the ITS barcoding marker suggest that commonly identified species in this group, including L. helva and L. leprosa, are collective taxa, each including several lineages. [ABSTRACT FROM AUTHOR]

We provide an updated survey for Sri Lanka of species of Graphis sensu Staiger, recently divided into Graphis s. str. and Allographa , including brief descriptions and a key to all 124 species currently known. Six new species are described: Allographa bambusicola Weerakoon, Lücking & Aptroot, a bambusicolous Allographa with entire labia, a laterally carbonized excipulum, 80–100 × 15–17 µm large, muriform ascospores and a rather thick, irregularly verrucose lateral thalline margin of the lirellae; A. weerasooriyana Weerakoon, Arachchige & Lücking, a corticolous Allographa resembling A. rustica Kremp. in overall anatomy and chemistry, but with a verrucose thalline margin of the lirellae and labia not distinctly raised above the thalline margin; Graphis flosculifera Weerakoon, Lücking & Aptroot, a corticolous Graphis resembling G. insulana but differing in the unique disposition of the lirellae and the slightly more elongate ascospores; G. rajapakshana Weerakoon, Lücking & Aptroot, a corticolous Graphis resembling G. desquamescens , including in ascospore size, but with lirellae with a distinct lateral thalline margin; G. rimosothallina Weerakoon, Lücking & Aptroot, a corticolous Graphis with a thick, uneven, rimose thallus and Fissurina -like lirellae, a completely carbonized excipulum and transversely 7-septate ascospores, 32–37 × 8–10 µm; and G. thunsinhalayensis Weerakoon, Arachchige & Lücking, a corticolous Graphis resembling G. subalbostriata but with smaller ascospores and lacking white lines between the striae of the labia. We also validate the name G. verrucoserpens Lücking. A total of 106 species are reported here for the first time from Sri Lanka. A biogeographical comparison with two other well-sampled countries (Costa Rica and Thailand) revealed a significantly higher similarity in species composition with Costa Rica than between Thailand and Costa Rica, suggesting a potential signature of the 'biotic ferry' hypothesis, that is the migration of lineages from Gondwana (partly corresponding to the modern Neotropics) via the north-eastwards drifting Indian subcontinent and subsequent interchange with Laurasia (partly corresponding to the modern eastern Paleotropics). However, the evolutionary timeline of the clades involved does not support this hypothesis and suggests an alternative explanation of geologically more recent mid- to long-distance dispersal. [ABSTRACT FROM AUTHOR]

In the past decade Graphidaceae has stood out as one of the families with the highest number of newly described species in Brazil. In this paper we describe further five new species of Graphidaceae found in an enclave of humid forest (Brejo de Altitude) in the Caatinga, and in the Atlantic Forest of Northeast Brazil: Chapsa inspersa E.L.Lima & Lücking, differing from C. dissuta in the inspersed hymenium and larger ascospores with more numerous septa; Cryptoschizotrema minus E.L.Lima & Lücking, differing from C. schizotrema in the distinctly smaller ascospores; Diorygma sophianum E.L.Lima & Lücking, differing from D. junghuhnii in the laterally carbonized excipulum and the slightly larger ascospores, as well as the presence of lichexanthone; Graphis subfiliformis E.L.Lima & Lücking, differing from G. filiformis in the thick, shallowly verrucose thallus and thalline margin of the lirellae and in the larger ascospores; and Sarcographa atlantica E.L.Lima & Lücking, differing from S. astroidea (Vain.) Lücking comb. nov. in the larger ascospores with more numerous septa. We also provide a range and habitat extension for Diorygma alagoense M.Cáceres & Lücking, an enigmatic species with a peculiar chemistry of thallus and ascomata. [ABSTRACT FROM AUTHOR]

[Display omitted] • The eco-evolutionary history of insular Caribbean Sticta was explored. • Species assemblages date back to the early Miocene and show strong biogeographic links to South America. • Colonization of the islands did not increase diversification rates. • Environmental variation most strongly explains taxonomic and phylogenetic turnover between island-level communities. Phylogenetic approaches to macroevolution have provided unique insight into evolutionary relationships, ancestral ranges, and diversification patterns for many taxa. Similar frameworks have also been developed to assess how environmental and/or spatial variables shape species diversity and distribution patterns at different spatial/temporal scales, but studies implementing these are still scarce for many groups, including lichens. Here, we combine phylogeny-based ancestral range reconstruction and diversification analysis with community phylogenetics to reconstruct evolutionary origins and assess patterns of taxonomic and phylogenetic relatedness between island communities of the lichenized fungal genus Sticta in the Caribbean. Sampling was carried out in the Greater Antilles (Cuba, Jamaica, Dominican Republic, and Puerto Rico) and Lesser Antilles (Dominica, Guadeloupe, and Martinique). Data for six molecular loci were obtained for 64 candidate Caribbean species and used to perform both macroevolutionary phylogenetics, which also included worldwide taxa, and phylobetadiversity analyses, which emphasized island-level communities. Our work uncovered high levels of island endemism (∼59%) in Caribbean Sticta. We estimate initial colonization of the region occurred about 19 Mya from a South American ancestor. Reverse migration events by Caribbean lineages to South America were also inferred. We found no evidence for increased diversification rates associated with range expansion into the Caribbean. Taxonomic and phylogenetic turnover between island-level communities was most strongly correlated with environmental variation rather than with geographic distance. We observed less dissimilarity among communities from the Dominican Republic and Jamaica than between these islands and the Lesser Antilles/Puerto Rico. High levels of hidden diversity and endemism in Caribbean Sticta reaffirm that islands are crucial for the maintenance of global biodiversity of lichenized fungi. Altogether, our findings suggest that strong evolutionary links exist between Caribbean and South American biotas but at regional scales, species assemblages exhibit complex taxonomic and phylogenetic relationships that are determined by local environments and shared evolutionary histories. [ABSTRACT FROM AUTHOR]

Cryptolechia carneolutea is the type species of the genus Cryptolechia , a rare taxon classified as endangered in the UK, now largely confined to ancient Fraxinus trees. The only tree with abundant growth of the species in one of its strongholds, the Slapton Ley National Nature Reserve in Devon, was blown over in a storm in April 2017, making it possible to collect material for molecular studies and transplant specimens to other Fraxinus trees in the area. The results of the phylogenetic analysis revealed C. carneolutea to be nested within the genus Gyalecta (Gyalectaceae). This further supports a broad circumscription of Gyalecta , after also including species previously placed in Belonia and Pachyphiale as proposed in other recent studies. It might be possible to introduce an alternative genus concept in Gyalectaceae , not schematically based on ascoma type and ascospore number, but presently not enough data are available to proceed with such a novel classification. A review of the taxonomic concept of Cryptolechia demonstrates that this name was used inconsistently in the past, and its possible inclusion in Gyalecta was anticipated by other authors. As the majority of species presently classified in Cryptolechia had been placed in Gyalecta before, only five new combinations are required to provide formal inclusion of all taxa in the latter genus: Gyalecta bicellulata (Kalb) D. Hawksw. & Lücking comb. nov., G. caudata (Kalb) D. Hawksw. & Lücking comb. nov., G. pittieriana (Kalb et al.) D. Hawksw. & Lücking comb. nov., G. saxatilis (Vězda) D. Hawksw. & Lücking comb. nov. and G. stellaris (Müll. Arg.) D. Hawksw. & Lücking comb. nov. We also supersede the previous lectotypification of Parmelia carneolutea Turner with the discovery of the holotype specimen in BM. [ABSTRACT FROM AUTHOR]

The genus Graphis sensu Staiger was recently divided into two genera, Graphis s. str. and Allographa. The latter contains mostly species with robust lirellae with a well-developed, often massively carbonized excipulum. With one exception, it also contains all species with a pigmented, yellow to orange pruina on the lirellae. Until now, seven species of Allographa were known with this character, all present in the Neotropics and one also in Africa. Here we describe two further species, both from tropical Asia, thus extending the known distribution of Allographa species with pigmented lirellae to the entire tropics. Allographa kamojangensis Jatnika, Noer & Lücking sp. nov. from Indonesia (Java) was recognized as a new taxon on the social media Facebook site Lichens Connecting People. Detailed studies showed that it deviates from the neotropical A. firferi in the much larger ascospores and the orange, K+ immediately purple-violet pigment, and from A. lutea in the completely carbonized excipulum and the larger ascospores. Allographa jayatilakana Weerakoon, Arachchige & Lücking sp. nov. was discovered in the second author's backyard during a recent inventory of Graphidaceae in Sri Lanka. It differs from A. flavominiata in the much shorter ascospores, from A. firferi in the terminally muriform ascospores, and from A. ochracea in the yellow-orange, K+ yellow then slowly purple-violet pruina. A key is presented to all nine species of Allographa with pigmented lirellae. [ABSTRACT FROM AUTHOR]

We present a taxonomic revision of the lichenized basidiomycete genus Acantholichen, species of which produce a characteristic blue-gray, microsquamulose thallus with spiny apical hyphal cells known as acanthohyphidia. Since its discovery, the genus was thought to be monospecific, only including the generic type, A. pannarioides. However, a detailed morphological and anatomical study of recently collected specimens from the Galápagos, Costa Rica, Brazil and Colombia, combined with a molecular phylogenetic analysis of the internal transcribed spacer (ITS1-5.8S-ITS2) region and 28S of the nuc rDNA and RPB2 sequences, revealed a much more diverse and widespread species assemblage. Based on the results of these analyses, we describe five new species in the genus: A. albomarginatus, A. campestris, A. galapagoensis, A. sorediatus and A. variabilis. We also provide an identification key to all species, anatomical and morphological descriptions, photographs and a table comparing main characters of each species. [ABSTRACT FROM AUTHOR]

Copyright of Revista de la Academia Colombiana de Ciencias Exactas, Físicas y Naturales is the property of Academia Colombiana de Ciencias Exactas, Fisicas y Naturales 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.)

The phylogenetic placement of Chapsa lamellifera, C. megalophthalma and Diploschistes ocellatus was studied using a dataset of five genetic markers (mtSSU, nuLSU, RPB1, RPB2 and ITS). As extratropical species occurring in Australasia, C. lamellifera and C. megalophthalma differ from other species in that genus by having relatively large ascomata with muriform ascospores and complex chemistry of either the protocetraric or stictic acids chemosyndrome. D. ocellatus is unique within Diploschistes, in lacking lateral paraphyses and containing the norstictic acid chemosyndrome. Previous phylogenetic analysis gave inconclusive results regarding the phylogenetic position of these taxa, and hence in the present study, a larger sampling of molecular markers was employed. Our results demonstrated that the two Chapsa species and D. ocellatus are not part of their current genera. Consequently, the new genera Gintarasia Kraichak, Lücking & Lumbsch and Xalocoa Kraichak, Lücking & Lumbsch are described to accommodate these species. The new combinations Gintarasia lamellifera (Kantvilas & Vézda) Kraichak, Lücking & Lumbsch, G lordhowensis (Mangold) Kraichak, Lücking & Lumbsch, G megalophthalma (Müll. Arg.) Kraichak, Lücking & Lumbsch and Xalocoa ocellata (Vill.) Kraichak, Lücking & Lumbsch are also proposed. [ABSTRACT FROM AUTHOR]

Three names in the genus Graphis are validated: Graphisnorvestitoides Sutjaritturakan, G. rongklaensis Sutjaritturakan, and Graphis arbusculaeformis (Vain.) Lücking. In addition, the new species G. pseudoaquilonia Lücking is described, differing from G. norvestitoides in the clear versus inspersed hymenium. [ABSTRACT FROM AUTHOR]

In the course of an ongoing systematic and taxonomic revision of the lichen family Graphidaceae (including Thelotremataceae), we present world-wide keys to the currently accepted thelotremoid genera and species, excluding the columellate taxa and their relatives of the Ocellularia- Myriotrema-Stegobolus clade (Melanotrema, Myriotrema, Ocellularia, Ocellularia clandestina group, Redingeria, Stegobolus), which will be treated in a forthcoming paper. The keys include all genera and species with chroodiscoid, lepadinoid, and topeliopsidoid apothecia and other taxa featuring periphysoids or fibrils, and their relatives. Taxa keyed out to genus and species level are Acanthotrema, Chapsa, Chroodiscus, Diploschistes, Fibrillithecis, Gyrotrema, Leptotrema, Leucodecton, Melanotopelia, the 'Ocellularia' cruentata group, Pseudoramonia, Reimnitzia, Schizotrema, Thelotrema, Topeliopsis and Wirthiotrema. Over 260 species are treated, including a few yet unnamed taxa. The following taxonomic and nomenclatural novelties are introduced: Acanthotrema frischii Lücking sp. nov., Chapsa aggregata (Hale) Sipman & Lücking comb. nov., C. albida (Nyl.) Lücking & Sipman comb. nov.; C. albomaculata (Sipman) Sipman & Lücking comb. nov., C. boninensis (Tat. Matsumoto) Rivas Plata & Mangold comb. nov., C. elabens (Müll. Arg.) Rivas Plata&Mangold comb. nov., C. imperfecta (Hale) Rivas Plata & Lücking comb. nov., C. laceratula (Müll. Arg.) Rivas Plata & Lücking comb. nov., C. magnifica (Berk. & Broome) Rivas Plata & Lücking comb. nov., C. meghalayensis (Patw. & Nagarkar) Lumbsch & Divakar comb. nov., C. meridensis (Kalb & Frisch) Lücking, Lumbsch & Rivas Plata comb. nov., C. mirabilis (Zahlbr.) Lücking comb. nov., C. neei (Hale) Mangold & Lücking comb. nov., C. paralbida (Riddle) Rivas Plata & Lücking comb. nov., C. pseudoexanthismocarpa (Patw. & C. R. Kulk.) Rivas Plata & Lücking comb. nov., C. pulvereodisca (Hale) Rivas Plata & Mangold comb. nov., C. scabiomarginata (Hale) Rivas Plata & Lücking comb. nov., C. waasii (Hale) Sipman & Lücking comb. nov., Fibrillithecis argentea (Müll. Arg.) Rivas Plata & Lücking comb. nov., F. carneodisca (Hale) Rivas Plata & Lücking comb. nov., F. confusa Lücking, Kalb & Rivas Plata spec. nov., F. diminita (Hale) Rivas Plata & Lücking comb. nov., F. eximia (R. C. Harris) Rivas Plata & Lücking comb. nov., F. fissurata (Nagarkar & Hale) Rivas Plata & Lücking comb. nov., F. gibbosa (H. Magn.) Rivas Plata & Lücking comb. nov., Leucodecton desquamescens (Vain.) Lücking comb. nov., L. oxysporum (Redinger) Lücking comb. nov., Schizotrema cryptotrema (Nyl.) Rivas Plata & Mangold comb. nov., Thelotrema patwardhanii (Hale) Rivas Plata & Mangold comb. nov., Topeliopsis guaiquinimae (Sipman) Rivas Plata & Mangold comb. nov., and T. tuberculifera (Vain.) Rivas Plata & Mangold comb. nov. Using the examples of Fibrillithecis halei s. lat., Leucodecton compunctellum s. lat., and Thelotrema monosporum s. lat., we show how difficult species complexes can be flexibly treated in a key, allowing for either a broad concept or the distinction of several individual taxa. [ABSTRACT FROM AUTHOR]

Chapsa rubropruinosa Messuti & Codesal collected in Argentina is described as new to science. The species is characterized by a thin thallus, apothecia with a pigmented disc, and transversely septate, hyaline, non-amyloid to faintly amyloid ascospores with thin cell walls. Chapsa minor is recorded for the first time from South America. The new combination Topeliopsis lomatiae (Messuti, Lumbsch & Ve?zda) Messuti & Mangold is proposed. [ABSTRACT FROM AUTHOR]

Copyright of Cryptogamie Mycologie is the property of Museum National d'Histoire Naturelle, Paris 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.)

One new species and 71 new records are reported from Thailand. Coenogonium disciforme sp. nov. is distinguished by its disc-shaped, shortly stipitate isidia, which leave perfectly circular holes, almost like punched holes, when detached. [ABSTRACT FROM AUTHOR]

Thirty-one taxa of Gyalideopsis and its recent segregates (Ferraroa, Jamesiella, Lithogyalideopsis) are reported in a first assessment of the group from Costa Rica. Six species are described as new, all originating from perhumid montane rainforest: Gyalideopsis altamirensis Lücking & Umaña, with broadly sessile, brown apothecia and single-spored asci with muriform ascospores (hyphophores unknown); G. macarthurii Lücking, Umaña & Aptroot, with dark greyish brown apothecia having their margin covered by triangular thalline lobules and shortly bristle-shaped hyphophores producing moniliform diahyphae; G. pseudoactinoplaca Lücking & Chaves, with sessile, globose diahyphal bunches similar to those of Actinoplaca and resembling isidia (apothecia unknown), G. wesselsii Lücking, Sipman & Chaves, with verrucose thallus, dark greyish brown, applanate apothecia with single-spored asci producing muriform ascospores, and minutely spathulate, dark brown hyphophores with moniliform diahyphae, and Jamesiella chaverriae Chaves, Umaña & Lücking, with isidioid hyphophores (‘thlasidia’) which are flask-shaped and apically thinly ciliate (apothecia unknown). A further species, Gyalideopsis sp., with distinctly stipitate, umbelliform hyphophores, is not formally described due to the lack of apothecia and hyphophores. A further nine species are reported as new to Costa Rica: G. buckei, G. capitata, G. confluens, G. giganteoides, G. megalospora, G. napoensis, G. nepalensis, G. palmata, and Lithogyalideopsis zeylandica. A world-wide key to all presently known 94 taxa of Gyalideopsis and its recent segregates is presented, as well as a checklist. [ABSTRACT FROM AUTHOR]

It is common practice in scientific journals to print genus and species names in italics. This is not only historical as species names were traditionally derived from Greek or Latin. Importantly, it also facilitates the rapid recognition of genus and species names when skimming through manuscripts. However, names above the genus level are not always italicized, except in some journals which have adopted this practice for all scientific names. Since scientific names treated under the various Codes of nomenclature are without exception treated as Latin, there is no reason why names above genus level should be handled differently, particularly as higher taxon names are becoming increasingly relevant in systematic and evolutionary studies and their italicization would aid the unambiguous recognition of formal scientific names distinguishing them from colloquial names. Several leading mycological and botanical journals have already adopted italics for names of all taxa regardless of rank over recent decades, as is the practice in the International Code of Nomenclature for algae, fungi, and plants, and we hereby recommend that this practice be taken up broadly in scientific journals and textbooks. [ABSTRACT FROM AUTHOR]

A new species, Chrysothrix septemseptata, is described from India. It is characterized by 7-septate ascospores, which is unique within the genus. It is currently known only from the Sundarbans Biosphere Reserve, where it grows in mangrove plantations. [ABSTRACT FROM AUTHOR]