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The present study explores detailed morphological and anatomical features of six variants of Canna indica L. Noticeable variations have been recorded in the morphology of six variants of C. indica especially on the basis of their different colours of leaves, flowers, staminodes and fruits. Root, stem and leaf anatomy of C. indica revealed little variation among the variants employed in the study. Phloem is 5-6 layered in the variant 2 (small red), 4-5 layered in the variant 4 (orange), and 3-4 layered in the remaining variants. The variant 4 (orange) can be distinguished from other five variants anatomically, by presence of 5-7 layers of schlerenchymatous tissue, and morphologically by its green pseudostem, ovate to obovate leaves, orange flowers, green bracts with maroon edges and orange-red staminodes. However, based on morphological and anatomical discrepancies the variants of Canna indica cannot be assigned to discrete taxonomic variety.

Four new varieties belonging to four species and three genera of the family Araceae are being described and illustrated from Bangladesh. The new varieties are: Colocasia fallax Schott var. purpurea H. Ara & M.A. Hassan, Colocasia oresbia A. Hay var. stolonifera H. Ara & M.A. Hassan, Rhaphidophora calophyllum Schott var. violaceus H. Ara & M.A. Hassan and Typhonium trilobatum (L.) Schott var. fulvus H. Ara & M.A. Hassan. The morphological diagnostic characters of each new variety and comparison with its closest one are provided. Detailed taxonomic description along with other relevant information are provided for easy recognition of the new aroid taxa.

Three new species belonging to two genera of Araceae from Bangladesh, namely Alocasia hararganjensis H. Ara & M.A. Hassan, Alocasia salarkhanii H. Ara & M.A. Hassan and Typhonium elatum H. Ara & M.A. Hassan are described and illustrated. Diagnostic morphological characters of each of the new species are provided. A comparative morphological characteristic for each new species with their closest described species has also been provided.

The genus Zephyranthes Herb. is revised along with its pollination mechanism, seed germination and vegetative propagation. Detailed taxonomy of four Zephyranthes species occurring in Bangladesh, namely, Z. atamasco (L.) Herb., Z. candida (Lindl.) Herb., Z. carinata Herb. and Z. tubispatha (L’Her.) Herb. ex Traub. was studied with their updated nomenclature, important synonyms, phenology, specimens examined, habitat, distribution, economic value and mode of propagation. A dichotomous bracketed key is provided for easy identification of the species. Pollination investigation reveals that all studied species of Zephyranthes are self-pollinated. Minimum five days were required for germination of seeds in Z. atamasco , and three days each in Z. candida , Z. carinata and Z. tubispatha . Pseudovivipary type of germination has been reported in Z. candida and Z. carinata for the first time. The maximum number of seeds (30) per fruit are produced in Z. tubispatha , whereas the minimum seeds (2) per fruit are found in Z. atamasco . Vegetative propagation through bulb was found more suitable than seeds in Z. atamasco, Z. candida and Z. carinata . Pollen viability has been found 100% in Z. candida , and Z. tubispatha , whereas, Z. atamasco and Z. carinata have shown 80% and 98% viability, respectively. Bangladesh J. Plant Taxon. 25 (1): 57-69, 2018 (June)

This paper presents addition of 89 taxa under 64 genera distributed in 32 families for the flora of Bangladesh which are not included in the monumental works Flora of British India, Bengal Plants and Encyclopedia of Flora and Fauna of Bangladesh. Updated nomenclature, family name, references to the work and the precise localities have been furnished under each taxon.Bangladesh J. Plant Taxon. 24(2): 165–171.

The genus Crinum L. represented by eight species in Bangladesh is revised. The species occurring in Bangladesh are Crinum amabile Donn, C. amoenum Roxb., C. asiaticum L., C. defixum Ker-Gawl., C. jagus (Thomps.) Dandy, C. latifolium L., C. pratense Herb. and C. stenophyllum Baker. Each species is described with updated nomenclature, important synonyms, English and Bangla names, phenology, specimens examined, chromosome number, habitat, distribution, economic value and mode of propagation. A dichotomous bracketed key to the species and illustrations are also provided.

The propagation, antibacterial activity and phytochemical profiles of Litsea glutinosa have been focused. Percentage of viable seed was 70 by tetrazoliumchloride staining technique, while germination rates were 75, 70, 55 and 20% in clay loam soil, clay loam: compost, compost and sand, respectively. Propagation of basal cutting in clay loam soil under the sun was faster than the apical stem cuttings. Both the ethanolic and water soluble extracts of the leaves and bark showed against Escherichia coli, Enterobacter intermedium, Salmonella sp., Staphylococcus aureus and Staphylococcus epidermis. Phytochemical profiling of the bark of L. glutinosa showed the presence of a number of secondary metabolites including steroids and terpenoids. The isolated compounds from ethanolic bark extract (T?1 and T?3) were identified as stigmasterol and ??sitosterol, respectively by comparing the 1H?NMR data of the isolated compounds with that of the published data. DOI: http://dx.doi.org/10.3329/dujbs.v23i2.20096 Dhaka Univ. J. Biol. Sci. 23(2): 165-171, 2014

This paper focuses on seed germination of six indigenous medicinal plants of Bangladesh, namely Adenanthera pavonina L., Helicteres isora L., Murraya paniculata (L.) Jack, Psoralea corylifolia L., Uraria lagopodioides (L.) Desv. and U. picta (Jacq.) Desv. ex DC. The minimum days taken to germinate seeds in Adenanthera pavonina L., Murraya paniculata (L.) Jack, Psoralea corylifolia L., Uraria lagopodioides (L.) Desv. and U. picta (Jacq.) Desv. ex DC. are 12, 36, 10, 39 and 14, respectively. Seeds were not germinated in Helicteres isora L. indicating that seeds are not suitable for propagation, however, propagation through stem cutting in this species revealed that plants flowers and set fruits in the same year and take only six to seven months. Epigeal type of seed germination was observed in all cases. DOI: http://dx.doi.org/10.3329/bjpt.v21i1.19270 Bangladesh J. Plant Taxon. 21 (1): 71-76, 2014 (June)

Not available.DOI: http://dx.doi.org/10.3329/bjpt.v21i1.19275Bangladesh J. Plant Taxon. 21(1): 101-104, 2014 (June)

Teknaf Wildlife Sanctuary has been explored to assess angioperm diversity using traditional taxonomic techniques during 2010 to 2011. The assessment has resulted inrecording of total 535 angioperm species under 103 familiies and 370 genera. For each species scientific name, Bangla name (whenever available), family and habit are provided. Of 535 species, 178 represented by herbs, 110 by shrubs, 150 by trees, 87 by climbers and 10 by epiphytes. In Magnoliopsida (dicots), Fabaceae is the largest family represented by 38 species, while in Liliopsida (monocots), Poaceae is the largest family represented by 29 species.DOI: http://dx.doi.org/10.3329/bjpt.v20i2.17389Bangladesh J. Plant Taxon. 20(2): 145-162, 2013

A systematic floristic study of Rampahar reserve forest under Rangamati district in Bangladesh has revealed 89 monocot (Liliopsida) taxa belonging to 66 genera under 15 families. Out of these recorded taxa, 73 are herbs, 9 climbers, 3 bamboos, 3 reeds and 1 tree species. The area harbours 11 threatened species of the country. Updated nomenclature with full reference citation, habit and representative specimen have been provided for each species. Well known synonyms and local name(s) have also been given in some cases.DOI: http://dx.doi.org/10.3329/bjpt.v19i1.10940Bangladesh J. Plant Taxon. 19(1): 37-44, 2012 (June)

Taxonomy, updated nomenclature and occurrence of the species belonging to the family Sterculiaceae in Bangladesh have been presented. Detailed herbarium study at Royal Botanic Gardens, Kew (K), Royal Botanic Garden, Edinburgh (E), British Museum (BM), Bangladesh National Herbarium (DACB) and Dhaka University Salar Khan Herbarium (DUSH) has revealed the occurrence of 32 species under 15 genera of the Sterculiaceae in Bangladesh. The correct name, important synonym(s), salient diagnostic characteristics, specimens examined and distributional notes have been provided for each species. Dichotomous bracketed keys have also been presented for identification of genera and species.DOI: http://dx.doi.org/10.3329/bjpt.v19i1.10943Bangladesh J. Plant Taxon. 19(1): 63-78, 2012 (June)

This paper deals with a total of 153 plant species under 120 genera and 52 families of the division Magnoliopsida (Dicots) of the Runctia Sal forest in Sherpur district. Habit analysis shows that herbs are represented by 34, shrubs 36, trees 65, climbers 17 and epiphyte by a single species. Updated nomenclature, habit, habitat and representative specimen have been furnished under each taxon. Keywords: Angiosperms; Magnoliopsida; Runctia sal forest. DOI: 10.3329/bjpt.v17i1.5389 Bangladesh J. Plant Taxon. 17(1): 33-53, 2010 (June)

The present study describes the ethnobotanical, phytochemical, and toxicological evaluations of Xanthium strumarium L. growing in Bangladesh . In toxicity evaluation on rats, the methanol extract of seedlings showed mortality, while both seedling and mature plant extracts raised the serum alanine transaminase and aspartate transaminase values and produced significant abnormalities in the histopathology of liver and kidney of rats. On the other hand, the aqueous soluble fraction of methanol extract of mature plant (LC 50 = 0.352 µg/mL) and methanol crude extract of seedlings (LC 50 = 0.656 µg/mL) demonstrated significant toxicity in the brine shrimp lethality bioassay. A total of four compounds were purified and characterized as stigmasterol ( 1 ), 11-hydroxy-11-carboxy-4-oxo-1(5),2( Z )-xanthadien-12,8-olide ( 2 ), daucosterol ( 3 ) and lasidiol-10-anisate ( 4 ). The present study suggests that X. strumarium is toxic to animal. Keywords: Bangladesh; Ethnobotanical; Xanthium strumarium Online: 8 Feb 2010 DOI: http://dx.doi.org/10.3329/bmrcb.v35i3.3658 Bangladesh Med Res Counc Bull 2009; 35: 84-90

The family Liliaceae A.L. de Jussieu has been revised for Bangladesh and a total of 34 species with one variant under 16 genera have been recorded. Artificial dichotomous keys to the genera and species have been given. Descriptions have been provided for each taxon, and local names, flowering and fruiting periods have been added wherever available. Out of 34 species, 16 species are native/naturalized and 18 species, including 1 variant, are exotic. Four genera, ten species and one variant have been documented for the first time in Bangladesh. Keywords: Liliaceae, Systematic studies, Bangladesh  DOI: 10.3329/bjpt.v15i2.1741  Bangladesh J. Plant Taxon. 15 (2): 115-128, 2008 (December)

Not available.DOI: http://dx.doi.org/10.3329/bjpt.v20i2.17405

The present article focuses on an inventory of angiosperm diversity of Lawachara National Park. Using traditional taxonomic techniques data have been collected from the p ark during January to October 2008. In this preliminary assessment, a total of 374 angiosperm species including cultivated ones have been catalogued under 84 families. Nineteen threatened plant species have also been recognized in the p ark. Keywords: Preliminary assessment; a ngiosperm diversity; Lawachara National Park. DOI: 10.3329/bjpt.v17i1.5387 Bangladesh J. Plant Taxon. 17(1): 9-22, 2010 (June)

This paper presents the flower morphology, pollination mechanisms and seed germination of three indigenous medicinal plants of Bangladesh namely, Asclepias curassavica L., Clerodendrum viscosum Vent. and Scoparia dulcis L. The minimum days taken for seed germination in Asclepias curassavica, Clerodendrum viscosum and Scoparia dulcis are 6, 14 and 9, respectively. Epigeal type of seed germination has been noted in Asclepias curassavica and Scoparia dulcis, whereas hypogeal type of seed germination has been found in Clerodendrum viscosum. Fruit production is highest in Scoparia dulcis among the species studied and a maximum of 304 seeds are produced per fruit in it. Maximum 108 seeds are produced per fruit in Asclepias curassavica. Among the species investigated Asclepias curassavica and Clerodendrum viscosum are cross-pollinated, and Scoparia dulcis is self-pollinated. Butterflies, bees and ants are noted to be the pollinators in Asclepias curassavica and in Clerodendrum viscosum black ants, butterflies and long tongue hawk moths are the pollinators.Keywords: Taxonomy; pollination; seed germination; Asclepias curassavica L.; Clerodendrum viscosum Vent.; Scoparia dulcis L.DOI: 10.3329/bjpt.v17i1.5391Bangladesh J. Plant Taxon. 17(1): 69-78, 2010 (June)

Physalis angulata L., an annual herb, belonging to the family Solanaceae, has been described and illustrated as a new record for Bangladesh. Key words: Physalis angulata, New record, Bangladesh doi:10.3329/bjb.v37i2.1731 Bangladesh J. Bot. 37(2): 195-198, 2008 (December)

Not available.Keywords: Pulicaria vulgaris; New record; Bangladesh; Asteraceae.DOI: http://dx.doi.org/10.3329/bjpt.v18i2.9308Bangladesh J. Plant Taxon. 18(2): 205-208, 2011 (December)

Not available. Keywords: Aristolochia elegans Mast., New record, Bangladesh  DOI: 10.3329/bjpt.v15i2.1753  Bangladesh J. Plant Taxon. 15 (2): 155-158, 2008 (December)

Monitoring on the panicle initiation, flowering, fruiting and seedling characteristics of Corypha taliera has been carried out. Biochemical composition of fresh and dry flowers together with the pericarp of the fruits have been analysed. Fresh flowers, fruits, seeds, and pericarp and testa weighed 13.75 mg/flower, 19.46 g/fruit, 6.47 g/seed, 12.89 g/pericarp and testa, respectively. The length of fruits and seeds were c 3.34 cm and c 2.33 cm, respectively while the breadth of the same were 3.14 cm and 1.94 cm, respectively. The protein content of fresh flower and pericarp were 12.78 and 14.70%. High energy content 345.97 Kcal was recorded in the pericarp and testa of the fruit. The first sown seeds were germinated in latterite clay soil between January and February and took approximately 30-48 days. Keywords: Corypha taliera ; b iochemical composition; f lowers; f ruits; p ericarp. DOI: 10.3329/bjpt.v17i1.5393 Bangladesh J. Plant Taxon. 17(1): 79-86, 2010 (June)

Not available.DOI: 10.3329/bjpt.v15i1.929Keywords: Chakma tribe; Ethnobotany; BangladeshBangladesh J. Plant Taxon. 15(1): 67-72, 2008 (June)

This paper presents 49 plant species belonging to 38 genera and 13 families of the division Liliopsida (monocots) from Runctia sal forest in Sherpur district, Bangladesh. The update nomenclature, habit, habitat and representative specimen have been provided for each species. Important synonyms and local names have also been furnished, wherever available. Keywords: Angiosperm; Monocots; Runctia sal forest. DOI: 10.3329/bjpt.v16i1.2750 Bangladesh J. Plant Taxon. 16 (1): 83-90, 2009 (June)

An inventory of angiosperm flora of Satchari National Park, located in Habiganj district, is prepared on the basis of collected materials and observation made from November 2008 to December 2009. From the study site, 245angiosperm species including cultivated and planted in 183 genera under 72 families are documented. Of 245 species recorded here, 86 species are represented by herbs, 46 by shrubs, 73 by trees, 37 by climbers and 3 by epiphytes. The survey has also confirmed the occurrence of seven threatened angiosperm species, one tree fern and one gynosperm in the Park area. For each species scientific name, local name (wherever available), family, habit and habitat are provided with citation of specimens.Keywords: Checklist; Angiosperms; Satchari National Park.DOI: http://dx.doi.org/10.3329/bjpt.v18i2.9298Bangladesh J. Plant Taxon. 18(2): 117-140, 2011 (December)

Three species belonging to Sterculiaceae, namely Guazuma ulmifolia Lam., Helicteres viscida Bl. and Sterculia urens Roxb. are recorded here for the first time for Bangladesh. Of these, the genus Guazuma is also a new generic record for the country. Updated nomenclature, important synonyms, description, ecology and geographical distribution are provided for each species. Keywords: Sterculiaceae; New records; Guazuma ulmifolia ; Helicteres viscida ; Sterculia urens ; Bangladesh. DOI: http://dx.doi.org/10.3329/bjpt.v18i2.9301 Bangladesh J. Plant Taxon. 18 (2): 153-157, 2011 (December)

Not available. Keywords: Dianella ensifolia ; New record; Bangladesh . DOI: 10.3329/bjpt.v16i2.3932 Bangladesh J. Plant Taxon. 16(2): 181-184, 2009 (December)

The paper focuses on the qualitative assessment of angiospermic flora of Ramgarh upazila of Khagrachhari district conducted during May 2005 to September 2006. A total of 243 species belonging to 195 genera under 75 families were recorded. Magnoliopsida is represented by 60 families, 156 genera and 192 species, whereas Liliopsida by 15 families, 39 genera and 51 species. Fabaceae is the largest family in Magnoliopsida represented by 16 species and, in Liliopsida, Poaceae is the largest family with 17 species. Keywords: Assessment; Angiospermic flora; Khagrachhari; Bangladesh . DOI: 10.3329/bjpt.v16i2.3925 Bangladesh J. Plant Taxon. 16(2): 115-140, 2009 (December)

Not available.Key words: Tacca plantaginea, New record, Bangladesh DOI: 10.3329/bjpt.v14i1.525 Bangladesh J. Plant Taxon. 14(1): 71-73, 2007 (June)

Not available.Keywords: Solanum nigrum, Doubtful occurrence, BangladeshDOI: 10.3329/bjpt.v15i1.931Bangladesh J. Plant Taxon. 15(1): 75-76, 2008 (June)