An annotated checklist of the vascular plants of Sundarban Mangrove Forest of Bangladesh

Rahman, Mohammad Maksudur; Hossain, Gazi Mosharof; Khan, Saleh Ahammad; Uddin, Sarder Nasir

doi:10.3329/bjpt.v22i1.23862

Cited by 45 publications

(50 citation statements)

References 11 publications

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“…In recent days these species were listed in Chennai, Tamil Nadu; Great Nicobar (Srirama et al 2012). However, they were absent in all regional floristic works of Bangladesh (Rahman & Jamila 2016; Kona & Rahman 2015; Rahman et al 2015; Rahman et al 2014; Rahman 2013; Rahman & Akter 2013; Rahman et al 2013; Uddin & Hassan 2012; Uddin et al 2013; Arefin et al 2011; Uddin & Hassan 2010; Tutul et al 2010; Islam et al 2009; Ahamed et al 2008; Hossain et al 2005; Khan & Huq 2001; Mia & Khan 1995; Datta & Mitra 1953). These facts, ensure that this two species were new to the floral database of Bangladesh.…”

Section: Discussionmentioning

confidence: 99%

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Morpho-anatomical observations on Phyllanthus of Southwestern Bangladesh with two new records for Bangladesh

Tuhin

Limon

2019

Preprint

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An extensive floristic survey was done to annotate Phyllanthus of southwestern 7Bangladesh from 2015 to 2018. In total, 2189 individuals of Phyllanthus were counted and 8 identified as eight different species (five herbs, two trees and a shrub). All species were examined 9 following both morphological and anatomical methods, based on taxonomic notes. The listed 10 species were Phyllanthus acidus, Phyllanthus amarus, Phyllanthus debilis, Phyllanthus emblica, 11 Phyllanthus niruri, Phyllanthus urinaria, Phyllanthus reticulatus and Phyllanthus virgatus. 12 Among them, Phyllanthus amarus and Phyllanthus debilis were listed for the first time from 13 Bangladesh during this study period. 14 15 Phyllanthus debilis 16 58 Standard herbarium technique (Hyland 1972; Rahman et al. 2013) was used to collect the 59 herbarium specimen for analysis. Live specimens were photographed by Celestron handheld 60 digital microscope and Nikon-3200D camera with Nikkor 18-55mm AF-S DX, Nikkor 55-300mm 61 AF-S DX and Micro-Nikkor 105 mm FX AF lenses. We recorded GPS quadrate for all surveyed 62 sites with a GPS device (Garmin GPSMAP 76CSx). Image J (1.52a) was used to record 63 morphological measurements and image analysis. Herbarium sheets were prepared and deposited 64to FWT herbarium to conserve for future use. We did not collect any endangered angiosperm or 65 sample from any protected areas, hence no permission was required for the collections. Collected 66 specimens were analyzed and identified based on key provided by Hooker (1890), Prain (1904), Result 71 2189 individuals of Phyllanthus were examined and classified into eight different species from 72 southwestern part of Bangladesh. Among these, five were herbs, two trees and a shrubs. Expect 73 Phyllanthus debilis all the species were well distributed throughout the study area. Meanwhile, 74 Phyllanthus niruri, Phyllanthus urinaria, Phyllanthus amarus and Phyllanthus reticulatus were 75 very abundant in the study sites. But Phyllanthus virgatus were found in Jessore-Chuadangha belt 76 and absent in Khulna, Satkhira and Bhagerhat (table 2). Apart from these, Phyllanthus acidus and 77 Phyllanthus emblica could be listed as a plantation species as they were absent at natural habitats. 78 In addition to it, Phyllanthus amarus and Phyllanthus debilis were listed for the first time from 79 Bangladesh at current study. A Monoecious, glabrous, deciduous, small sized tree, up to 15m high; branches stout, leafless, 94 with slender deciduous leafy branchlets at the end; bark brownish. Leaves distichous, alternate, 95 stipulate, stipules lanceolate, 0.8-1 mm; petiolate, 1.5-3mm long, distichous; leaf blade ovate to 96 ovate-lanceolate, 3-8mm long and 1-3.5mm wide, leathery, acute to acuminate at apex, rounded 97 or broadly cuneate at base, lateral veins 7-9 pairs, sometimes indistinct. Flower bisexual, dark 98 reddish, at dense clusters forming slender, glabrous, in interrupted racemes, arising along the stem 99 and branches. Male flowers are minute, red; staminate, stamen 4, free, 2 shorter...

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Section: Discussionmentioning

confidence: 99%

“…Previously, Phyllanthus represented 11 species (5 herbs, 4 shrubs and 2 trees) in Bangladesh (Ahamed et al 2008). Most of the regional literatures of this region ensured a valuable contribution of it to the regional flora (Uddin & Hassan 2010; Islam et al 2009; Rahman et. al.…”

Section: Introductionmentioning

confidence: 99%

Morpho-anatomical observations on Phyllanthus of Southwestern Bangladesh with two new records for Bangladesh

Tuhin

Limon

2019

Preprint

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“…In respect to the size of land area, the species composition of the pteridohytes of Rajkandi Reserve Forest seems higher than that of few other protected areas of Bangladesh. For example, 41 fern species were recorded from Rampahar and Sitapahar (Uddin and Hassan, 2012) and 24 species from Sundarbans (Rahman et al, 2016). Two species of pteridophytes occurring in Rajkandi Reserve Forest, viz., Cyathea gigantea, and Tectaria chattagramica, have been enlisted as LR (cd)-(Lower risk, conservation dependent) and DD (Data deficient) respectively in Red Data Book by Khan et al (2001).…”

Section: Resultsmentioning

confidence: 99%

Taxonomic checklist of the pteridophytes of Rajkandi Reserve Forest, Moulvibazar, Bangladesh

Haque

Khan

Uddin³

et al. 2017

Jahangirnagar Univ. J. Biol. Sci.

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Pteridophytes growing in the Rajkandi Reserve Forest of Moulvibazar district were indentified and a total of 52 species belonging to 30 genera of 20 families have been documented. The family Pteridaceae with nine species was found to be the largest, which was followed by Polypodiaceae with seven, Tectariaceae with six and Thelypteridaceae with five species. The genus Pteris with six species was found as the largest, which was followed by Tectaria with five and Bolbitis, Lygodium and Selaginella, each with 3 species, and the rest of the genera consisted of two or one species. Most of the species were recorded from the woodlands and three species, viz., Tectaria chattagramica and Cyathea gigantea enlisted in Red Data Book of Bangladesh (Khan et al., 2001), were found as common in this reserve forest.

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“…The Sundarbans Reserved Forest is one of the most diverse mangrove forests in the world (Rahman et al. ; Islam et al. ).…”

Section: Methodsmentioning

confidence: 99%

“…The Sundarbans Reserved Forest is one of the most diverse mangrove forests in the world (Rahman et al 2015b;Islam et al 2016). The total area of the Sundarbans Reserved Forest is 6017 km 2 and mangroves occupy about 69% of the area and the remaining 31% are covered by water ( Fig.…”

Section: Study Areamentioning

confidence: 99%

Improved assessment of mangrove forests in Sundarbans East Wildlife Sanctuary using WorldView 2 and TanDEM‐X high resolution imagery

Rahman

Lagomasino

Lee

et al. 2019

Remote Sens Ecol Conserv

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Recent developments of remote sensing techniques which can capture both the structure and function of the ecosystem provide a more representative view of the landscape. These unique Earth observations were used to help improve traditional forestry surveys by providing species‐specific land cover classes for mangrove forests in the Sundarbans East Wildlife Sanctuary. By combining optical data from WorldView2 (WV2; 2 m pixel) and a canopy height model derived using radar data from TanDEM‐X (TDX; 12 m pixel), we identified nine mangrove and five non‐mangrove classes by following an Iterative Self‐Organizing Data Analysis Algorithm. Three dominant mangrove species accounted for nearly 50% of the sanctuary. Heritieria fomes disproportionately covered the largest area at 43%, overturning previous field‐based estimates of Excoecaria agallocha dominance. E. agallocha and Sonneratia apetala, covered 3% and 1.47% of the sanctuary, respectively. Four mixed species classes were also identified with clear vegetation zonation patterns that trended toward species homogeneity with increasing distance from shore. The overall land cover accuracy (WV2: 89.33%; WV2‐TDX: 89.89%), the Kappa Coefficient (WV2: 0.88; WV2‐TDX: 0.89) and change statistics between WV2 and WV2‐TDX land cover classifications indicate that the WV2 imagery can separate mangrove community types without structural data. The combination of the land cover classifications and the canopy height model indicated that H. fomes were not only the most dominant forest but also, on average, the tallest (12.3 m) among the other eight mangrove types. Our large‐scale mapping with high resolution optical and radar platforms can capture subtle changes in mangrove vegetation and canopy structural gradients more accurately and be used to monitor biodiversity changes and Aichi Biodiversity Targets and Indicators, which would contribute to biodiversity policy updating.

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An annotated checklist of the vascular plants of Sundarban Mangrove Forest of Bangladesh

Cited by 45 publications

References 11 publications

Morpho-anatomical observations on Phyllanthus of Southwestern Bangladesh with two new records for Bangladesh

Morpho-anatomical observations on Phyllanthus of Southwestern Bangladesh with two new records for Bangladesh

Taxonomic checklist of the pteridophytes of Rajkandi Reserve Forest, Moulvibazar, Bangladesh

Improved assessment of mangrove forests in Sundarbans East Wildlife Sanctuary using WorldView 2 and TanDEM‐X high resolution imagery

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