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''Bulbophyllum claviforme, a new species from Vietnam''

5/15/2019

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Ba Vuong Truong, Quam Tam Truong, Van Huong Bui & Jim Cootes


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Bulbophyllum calviforme     Photos: B.V. Truong

Abstract: The new species, Bulbophyllum claviforme, originated from Son La province and was cultivated in Ho Chi Minh City. The publication presents a detailed description and figures for this species. It differs from all known members of the Bulbophyllum alliance by the color of the flowers, the short inflorescence, and the clavate hairs along the margin of the dorsal sepal and petals.

Bulbophyllum claviforme resembles Bulb. pecten-veneris and Bulb. flaviflorum but differs in its flower color – yellowish orange vs red (Bulb. pectenveneris), yellowish green (Bulb. flaviflorum) – distinctly short inflorescence of Bulb. claviforme, which is as long, or little longer than flowers (vs. scape much longer than flowers of Bulb. pecten-veneris and Bulb. flaviflorum), small flower 20 – 25 mm long (vs flowers more than 40 mm long), the dense yellow clavate hairs along the margin of dorsal sepal and petals (vs fimbriate-ciliate edges of the margins of the dorsal sepal and petals of Bulb. pecten-veneris and Bulb. flaviflorum), dorsal sepal broadly ovate and acute apex (vs long caudate) and petals ovate, apex obtuse-rounded (vs ovate, apex acute).

It grows in Vietnam, Son La province in evergreen
broad-leaved humid forests as a epiphyte on tree branches where it flowers in August.

Published in Die Orchidee 5(07), 2019/E-Paper
https://orchidee.de/e-paper/taxonomische-mitteilungen/​

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