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

Saleh Ahammad Khan,Gazi Mosharof Hossain ,Mohammad Maksudur Rahman ,Abdur Rahim

doi:10.3329/bjpt.v27i2.50665

Saleh Ahammad Khan, Gazi Mosharof Hossain + Show 2 more

Open Access

https://doi.org/10.3329/bjpt.v27i2.50665

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Abstract

During the floristic explorations in Sundarbans mangrove forest of Bangladesh, conducted in 2016-2019, the authors collect some specimens of Angiosperms that are finally identified as Cleisostoma simondii (Gagnep.) Seidenf. of Orchidaceae and Volkameria heterophylla Vent. of Lamiaceae. Specimens of C. simondii are further identified as C. simondii var. guandongense Z.H. Tsi. The authors collect some specimens of another angiospermic plant in 2019 from Gazipur district of Bangladesh and confirm their identification as Leucas martinicensis (Jacq.) R. Br. of family Lamiaceae. All of these taxa are recorded here for the first time from Bangladesh. Detailed taxonomic description with notes on ecology, uses, distribution and distinctness from morphologically similar taxa, photographs and illustration are provided. Bangladesh J. Plant Taxon. 27(2): 251-260, 2020 (December)

Highlights

In 2016-2019, we conduct botanical explorations in Sundarban Mangrove Forest of Bangladesh and collect many specimens of vascular plants that are currently housed in the Jahangirnagar University Herbarium (JUH)
We find some of these specimens that do not match with any known plant species of Bangladesh, perform a detailed taxonomic investigation on these specimens and identify these as belonging to two angiospermic species namely, Cleisostoma simondii (Gagnep.) Seidenf. and Volkameria heterophylla Vent. (=Clerodendrum heterophyllum) of families Orchidaceae and Lamiaceae, respectively
In 2019, we collect some specimens of another flowering plant during a botanical exploration conducted in Kapasia area of Gazipur district of Bangladesh, and recently we have confirmed their identification as Leucas martinicensis (Jacq.) R

Summary

Introduction

The flora of Bangladesh comprises a total of 3873 species of Angiosperms including 262 new records (Haque et al, 2012; Rahman et al, 2016; Rahman and Hassan, 2017; Islam and Rahman, 2017; Sourav et al, 2017; Ara, 2018; Ara and Hassan, 2018; Islam et al, 2018; Rahman et al, 2018; Rahman and Uddin, 2018; Uddin et al, 2018; Uddin 2018; Alfasane et al, 2019, 2020; Hossain et al, 2019; Huda et al, 2019) reported so far after the publication of Encyclopedia of Flora and Fauna of Bangladesh by Siddiqui et al (2007-2008) and Ahmed et al (2008-2009).In 2016-2019, we conduct botanical explorations in Sundarban Mangrove Forest of Bangladesh and collect many specimens of vascular plants that are currently housed in the Jahangirnagar University Herbarium (JUH). Guandongense Z.H. Tsi. In 2019, we collect some specimens of another flowering plant during a botanical exploration conducted in Kapasia area of Gazipur district of Bangladesh, and recently we have confirmed their identification as Leucas martinicensis (Jacq.) R. The species Cleisostoma simondii including the variety C. simondii var.

Results

Conclusion