<abstract xmlns="http://www.w3.org/1999/xhtml"><p>The orchid genus <italic>Dipteranthus</italic>, described by Rodrigues in 1882, comprises about 10 species distributed from Venezuela to Bolivia and Brazil. Plants of <italic>Dipteranthus</italic> are small epiphytes, reaching in total up to 10 cm in length, hence, are easily overlooked in the field. Modern classification of <italic>Dipteranthus</italic> is still under discussion. During the revision of orchids of the Guianas, we came across some specimens that do not match morphological characters of any previously known <italic>Dipteranthus</italic> species. Thus, we propose that these specimens represent a new species – <italic>Dipteranthus clarkei sp. nov. D. clarkei</italic> is the first representative of the genus known from Guyana.</p></abstract>

The first record of the genus <italic>Dipteranthus</italic> (Orchidaceae) in the Guyana, description of a new species

<abstract xmlns="http://www.w3.org/1999/xhtml"><p>The aim of the paper is to present materials to the taxonomic revision of the African orchid genus <italic>Bilabrella</italic> Lindl., based on herbarium materials, specimens conserved in FAA as well as literature. It was compiled using classical taxonomic methods. The research involved determining differences between <italic>Bilabrella</italic> and other genera of Habenariinae in Africa. Its morphological structure was analysed and key features for the generic taxonomy defined. An infrageneric classification is proposed. A full description of each species and distribution data are provided. The ecological requirements and phenology of all species have been assembled and systematized.</p></abstract>

The genus <italic>Bilabrella</italic> Lindl. (Orchidaceae, Habenariinae): materials to the taxonomic revision

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Biodiversity Research and Conservation

Volume 51 (2018): Issue 1 (September 2018)

The first record of the genus Dipteranthus (Orchidaceae) in the Guyana, description of a new species

The genus Bilabrella Lindl. (Orchidaceae, Habenariinae): materials to the taxonomic revision

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