 Bulbophyllum hainanense Photo: Truong Ba Vuong  Bulbophyllum hymenanthum Photo: Nguyen Van Canh | Vuong Ba Truong, Jaap J. Vermeulen & Tam Quang Truong Abstract: Bulbophyllum hainanense is an addition to the Flora of Vietnam. Previously, Vietnamese material of this species was listed as Bulbophyllum hymenanthum, a similar-looking species. This paper provides a description and illustration of the Vietnamese material of B. hainanense. Taxonomic Notes: Within section Aeschynanthoides, it shares the presence of two ridges on the adaxial side of the lip with B. drymoglossum Maximovich (1887), but differs by the tapering, acute lip apex. It differs from B. hymenanthum (the other species of section Aeschynanthoides native to Vietnam, Fig. 2) by the minute, triangular tooth along the lower edge of the stelidia; in B. hymenanthum a conspicuous, rounded wing is present. Published in LANKESTERIANA 19(1): 1–4. (2019) http://www.lankesteriana.org DOI: http://dx.doi.org/10.15517/lank.v19i1.36164 |
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