Abstract
A species, new to science, is described from Son La province, Vietnam. The new species is similar to B. yongtaiense, B. layae and B. sridithii in the hairy lip at base but clearly differs by the papillose margin and inner surface of dorsal sepal and petals, lip without mid keel and dense hairs on lateral keels, stelidia 2 times longer than 3 similar species.
References
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<p>IUCN Standards and Petitions Committee (2019) Guidelines for Using the IUCN Red List Categories and Criteria<strong>.</strong> Version 14. Prepared by the Standards and Petitions Committee. [https://www.iucnredlist.org/documents/RedListGuidelines.pdf]</p>
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<p>Truong, B.V., Dang, V.S., Tran, H., Maisak, T.V. & Averyanov, L.V. (2020) <em>Bulbophyllum sridithii</em> (Orchidaceae), new species from Vietnam. <em>Taiwania</em> 65 (4): 473‒477. https://doi.org/10.6165/tai.2020.65.473</p>
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<p>Vermeulen, J.J., Fischer, G., Smidt, E. de C., Stern, W.L., Pridgeon, A.M., Veitch, C., Sieder, A., Vugt, R. Van & Gravendeel, B. (2014) <em>Bulbophyllum</em>.<em> In: </em>Pridgeon, A.M., Cribb, P.J., Chase, M.W. & Ramussen, F.N. (Eds.) <em>Genera Orchidacearum volume 6, Epidendroideae pt. 3</em>. UK: Oxford University Press. 544 pp. [pp. 4–51.]</p>
<p>Beentje, H. (2016) T<em>he Kew Plant Glossary, an illustrated dictionary of plant terms</em> (2 ed.). Royal Botanic Garden, Kew, Richmond. 184 pp.</p>
<p>Blume, C.L. (1825) <em>Bijdragen tot de flora van Nederlandsche Indie</em> 7. Batavia, pp. 285–354. https://doi.org/10.5962/bhl.title.115427</p>
<p>IUCN Standards and Petitions Committee (2019) Guidelines for Using the IUCN Red List Categories and Criteria<strong>.</strong> Version 14. Prepared by the Standards and Petitions Committee. [https://www.iucnredlist.org/documents/RedListGuidelines.pdf]</p>
<p>Garay, L.A., Hamer, F. & Siegerist, E.S. (1994) The genus Cirrhopetalum and the genera of Bulbophyllum alliance. <em>Nordic Journal of Botany</em> 14: 609–646. https://doi.org/10.1111/j.1756-1051.1994.tb01080.x</p>
<p>Gagnepain, F. (1931) <em>Cirrhopetalum</em> nouveaux d’Asie. <em>Bulletin de la Société Botanique de France</em> 78 (1): 4–8. https://doi.org/10.1080/00378941.1931.10832851</p>
<p>Liu, J., Li, M., Lan, S. & Liang, Y. <em>Bulbophyllum yongtaiense</em> (Orchidaceae, Epidendroideae, Dendrobiinae), a new species from Fujian, China: Evidence from morphological and molecular analyses. <em>Phytotaxa</em> 349 (3): 281–286. https://doi.org/10.11646/phytotaxa.349.3.9</p>
<p>Seidenfaden, G. (1973) Notes on <em>Cirrhopetalum</em> Lindl. <em>Dansk Botanisk Arkiv</em> 29: 1–260.</p>
<p>Schlechter, R. (1913) Die Orchidaceen von Deutsch-Neu-Guinea. <em>Repertorium Specierum Novarum Regni Vegetabilis</em>, Beiheft 1: 1–1079.</p>
<p>Truong, B.V., Dang, V.S., Tran, H., Maisak, T.V. & Averyanov, L.V. (2020) <em>Bulbophyllum sridithii</em> (Orchidaceae), new species from Vietnam. <em>Taiwania</em> 65 (4): 473‒477. https://doi.org/10.6165/tai.2020.65.473</p>
<p>Vermeulen, J.J., O’Byrne, P. & Lamb, A. (2015) <em>Bulbophyllum of Borneo</em>. Natural History Publications (Borneo), 728 pp.</p>
<p>Vermeulen, J.J., Fischer, G., Smidt, E. de C., Stern, W.L., Pridgeon, A.M., Veitch, C., Sieder, A., Vugt, R. Van & Gravendeel, B. (2014) <em>Bulbophyllum</em>.<em> In: </em>Pridgeon, A.M., Cribb, P.J., Chase, M.W. & Ramussen, F.N. (Eds.) <em>Genera Orchidacearum volume 6, Epidendroideae pt. 3</em>. UK: Oxford University Press. 544 pp. [pp. 4–51.]</p>