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''Bulbophyllum isabellinum Cavestro et J. Champion – a New Species of Bulbophyllum (Orchidaceae, Dendrobieae) from Central Kalimantan in Indonesia''

6/30/2018

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Dr. William Cavestro & Jeffrey Champion


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Bulbophyllum isabellinum    Photos: J. Champion

Abstract: This article presents a new species of Bulbophyllum named Bulbophyllum isabellinum and native of Central Kalimantan in Indonesia. This species is close to Bulbophyllum gusdorfii J. J. Sm. but differs in shorter, sulcate, emarginate (neither acute, nor acuminate), yellow orange and tawny lateral sepals (not flat), in petals triangular and shorter, neither fimbriate nor papillose at apex, and also in a tongue-shaped (not oblong-ovate) labellum with three ridges at base, and in the middle with a median very short and inconspicuous ridge.

Bulbophyllum isabellinum Cavestro et J. Champion spec. nov. is simillar to Bulbophyllum gusdorfii J. J. Sm. but differs in close and shorter ovoid pseudobulbs; shorter and elliptic-ovate leaves; shorter and sulcate lateral sepals (not flat), emarginated (neither acute, nor acuminate), yellow orange and tawny, triangular and shorter petals, neither fimbriate nor papillose at apex, a labellum tongue-shaped (not oblong-ovate), shorter with three ridges at base and in the middle, a median ridge very short and inconspicuous.

Published in Die Orchidee 4(09), 2018/E-Paper
​https://orchidee.de/e-paper/taxonomische-mitteilungen/

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