Abstract
Coelogyne schwadtkii Danell., Cleisostoma williamsonii (Rchb.) Garay. and Phalaenopsis difformis (Wall. ex Lindl.) Kocyan & Schuit. of the family Orchidaceae collected from southeast part of the country have been reported here as new angiospermic records for Bangladesh flora. Detailed critical examination of the specimens of these species has been made to confirm their taxonomic identification. Detailed taxonomic description with flowering time, ecology, geographical distribution, illustration and photographs of each species has been provided.
 Jahangirnagar University J. Biol. Sci. 9(1 & 2): 123-132, 2020 (June & December)
Highlights
The family Orchidaceae belongs to the Lilliopsida of flowering plants
The present work is aimed at discovering unexplored orchids from different remote areas of Bangladesh based on extensive field works towards completion of the orchid flora of Bangladesh
The voucher specimens of each species have been deposited at the Herbarium of Chittagong University (HCU), Bangladesh
Summary
The family Orchidaceae belongs to the Lilliopsida of flowering plants. It is one of the most fascinating groups of ornamental plants of the world occurring mostly in the tropical and subtropical parts of the world with 880 genera and about 26567 species (Cai et al, 2015), a few of them are found in arctic regions. In Bangladesh, the family is represented by 72 genera and 188 species (Rahman et al, 2017). Three species viz. Coelogyne schwadtkii Danell., Cleisostoma williamsonii (Rchb.) Garay.
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