Bulbophyllum sulfureum Schlechter 1924 SECTION Alcistachys Schlechter 1924 Photos courtesy of Olaf Pronk and Laurette E.U.R.L. orchids of Madagascar

Plant Photos courtesy of Dominique Karadjoff and his Madagascar Orchids Species Website

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Common Name The Sulphur Yellow Bulbophyllum

Flower Size 3/4" [2 cm]

Found in northeastern Madagascar in humid evergreen forests at elevations of 800 to 1700 meters as a small to just medium sized, warm to cool growing epiphyte with a sheath enveloped rhizome carrying close-set, ovoid, 4 angled pseudobulbs carrying 2, apical, lanceolate, acute, subpetiolate and attenuate towards the base leaves that blooms in the late spring and summer on a 8" [20 cm] long, very thick, yellowish green, incurved inflorescence that is enveloped by 5 to 7 sheaths .

References W3 Tropicos, Kew Monocot list , IPNI ; Flora of Madagascar Perrier 1936/81; Bulbophyllum and Their Allies Siegerist 2001; Ochids of Madagascar Hermans, Du Puys Cribb & Bosser 2007 photo fide; Field Guide to the Orchids of Madagascar Cribb & Herman 2009 photo fide

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