New records of three species and a variety of Angiosperms for Bangladesh

Self Cite

This survey provides the basic taxonomic data on the vascular flora of the disasterprone coastal district of Bagerhat. It has explored the occurrence of 964 species of vascular plants under 607 genera and 147 families in this district. About 68.88% of these species are native and 31.12% are exotic to Bangladesh. Pteridophytes are composed of 32 species under 22 genera of 14 families and Gymnosperms of seven species under six genera and five families. Angiosperms are comprised of 693 species of 450 genera and 99 families of Magnoliopsida (dicotyledons) that represent 71.89% of the flora, and 232 species belonging to 129 genera under 29 families of Liliopsida (monocotyledons) that constitute 24.07% of this flora. Fabaceae with 58 species is the largest dicot family, followed by Asteraceae, Euphorbiaceae, Apocynaceae, and Acanthaceae. Poaceae with 68 species is the largest monocot family, followed by Cyperaceae, Orchidaceae, Araceae and Arecaceae. The genus Cyperus is the largest in the study area, which is followed by Fimbristylis, Euphorbia, Ficus, Solanum and Ipomoea. The species Cipadessa baccifera (Roth) Miq. of Meliaceae is rediscovered in Bangladesh. About 63.35% of species of this flora and most of the Magnoliopsida and Liliopsida are herbs, 18.94% shrubs, 15.63% trees, and 1.55% palms. Nearly 70.81% of the species are wild and the rest are planted or cultivated. 17 species are recognized as rare in the study area due to their very restricted occurrence and poor regeneration. Most of the species grow in the fallow lands, roadsides, woodlands, homesteads, marginal lands and scrub jungles. The majority of the species have more than one uses, but most are useful as medicinals (70.39%) and ornamentals (25.57%). Though the study area is under the stress of different threats, its floristic composition is still rich. We strongly recommend adopting adequate effective measures for the conservation and sustainable development of this rich flora of the coastal region. Bangladesh J. Plant Taxon. 29(1): 43-78, 2022 (June)

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Floristic Survey of Vascular Plants in Coastal District Bagerhat of Bangladesh

Hossain

Khan

Shetu

et al. 2022

Self Cite

“…This study documents the occurrence of a total of 923 species of vascular plants under 594 genera and 141 families in the study area. These species constitute about 23.75% of the total 3886 plant species reported from Bangladesh so far (Hossain et al, 2020;Ashrafuzzaman and Sarwar, 2021;Ashrafuzzaman et al, 2022). Pteridophytes were represented by 30 species under 21 genera and 11 families, whereas Gymnosperms by eight species under seven genera and six families.…”

Section: Resultsmentioning

confidence: 99%

An Inventory of Vascular Flora of the Lalmai Hill Area Of Cumilla District, Bangladesh

Shetu

Hossain

Khan

et al. 2022

In this study, the vascular flora of the Lalmai hill area of the Cumilla district has been thoroughly explored. This study reveals the occurrence of 923 species of vascular plants under 594 genera and 141 families in the study area, which represents 23.75% of the total 3886 plant species reported from Bangladesh until now. About 68.15% of these species are native and 31.85% are exotic to Bangladesh. Pteridophytes are represented by 30 species belonging to 21 genera and 11 families, whilst Gymnosperms are represented by eight species under seven genera and six families. Magnoliopsida (dicotyledons) comprises 661 species, including four subspecies and two varieties, from 429 genera and 96 families, accounting for 71.54% of the vascular flora of the study area. Liliopsida (monocotyledons) represents 225 species under 137 genera and 28 families, making up 24.35% of this flora. In Magnoliopsida, Fabaceae with 55 species is the largest dicot family, followed by Asteraceae, Malvaceae, Euphorbiaceae, Lamiaceae and Rubiaceae. Most of the species of Liliopsida (68%) are represented by the five families viz., Poaceae, Cyperaceae, Araceae and Commelinaceae. Poaceae with 75 species is the largest monocot family, followed by Cyperaceae, Orchidaceae, Araceae and Arecaceae. The genus Cyperus is the largest in the study area. The species Antidesma roxburghii Wall. ex Tul. of Phyllanthaceae is rediscovered in Bangladesh. Most of the Magnoliopsida and Liliopsida are herbs (59.80%), which are followed by trees (21.02%), shrubs (17.23%), and palms (1.41%). About 64.57% of the species are recorded as wild, but a significant percentage (27.41%) is planted and cultivated (8.02%). The majority of the species are found to grow in eight categories of habitat viz., roadside, fallow land, homestead, woodland, garden, scrub jungle, agricultural field and grassland. Eight plant species, listed in the Red Data Book of Bangladesh including six as Data Deficient (DD), one Not Evaluated and one Endangered (EN) species, are harboured in the study area. We strongly recommend the adoption of a master plan for minimizing all major threats to the vegetation and habitats of this area and sustainable development, utilization and conservation of its plant resources. Bangladesh J. Plant Taxon. 29(2): 203-240, 2022 (December)

“…In the last several decades, they have published a significant number of new records as a part of their persistent efforts to discover new plant species from this country. Since the publication of Ahmed et al (2008Ahmed et al ( -2009Ahmed et al ( , 2009 and Siddiqui et al (2007), about 288 new records pertaining to the angiosperms of this country have been made available (e.g., Rahman and Hassan, 2017;Islam and Rahman, 2017;Sourav et al, 2017;Ara and Hassan, 2018;Rahman and Uddin, 2018;Uddin, 2018;Alfasane et al, 2019;Hossain et al, 2020;Sultana and Rahman, 2021;Hossain et al, 2022;Rahman et al, 2022;Sultana et al, 2022;Uddin and Uddin, 2022;Hossain et al, 2023;Rahman et al, 2023). The majority of these new records contain information on the precise locality of the species.…”

Section: Introductionmentioning

confidence: 99%

Three new records of lythraceae in the flora of Bangladesh

Rani,

Khan,

Uddin

et al. 2024

In the course of studying the family Lythraceae of Bangladesh in 2023–2024, some specimens of the family were found to be different than those of any other species of this family reported so far from this country. After a critical examination, these specimens have been identified as Ammannia auriculata, Rotala ramosior, and Rotala malampuzhensis of the Lythraceae. These species are new to the flora of Bangladesh. A detailed taxonomic description, including data on ecology, distribution, and use, a list of representative specimens examined, and illustrations have been provided for each species. Bangladesh J. Plant Taxon. 31(1): 15-24, 2024 (June)