Bulbophyllum patens King 1896 SECTION Sestochilos [Breda] Benth & Hook.f. 1883 Photos courtesy of Manorot Tangsaveepha Copyright , and the Butterfly and Orchids Photo Gallery

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Common Name The spreading Bulbophyllum [refers to the widely open flowers]

Flower Size 1 5/8" [4 cm]

This medium sized, unifoliate epiphytic species is from the lowland swamp forests of India, Thailand, Malaysia, Sumatra and Borneo in swamp, peat swamp, lowland podosol, and mixed dipterocarp forests on tree trunks, avoiding deitrius, at elevations of sealevel to 200 meters and has a hairy rhizome, with 1.6" [4cm] between each ellipsoid, remote pseudobulb which is enveloped basally by a ring of veins left from an evanescent sheath and carrying a single, apical, elliptic-oblong, shortly bilobed apically, fleshy leaf and blooms on a 2" [5 cm] long, arching inflorescence with a few, basal, overlapping yellow bracts with red spots occuring in late winter and early spring with a solitary, non-resupinate, somewhat scented flower held below the leaf.

A hot growing species that requires, hot conditions, shade, frequent waterings and fertilizings as well as high humidity.

This species and B macranthum are both in Section Stenochilus differing only in the non-resupinate flowers, which does not seem enough to keep them separate from Section Sestochilos with which it fits well.

Synonyms Phyllorchis patens (King) Kuntze 1891

References W3 Tropicos, Kew Monocot list , IPNI ; Icones Plantarum Vol 21 Hooker 1891 drawing fide; Flora of Malaya Vol 1 Holttum 1957; The Orchids of Thailand Seidenfaden & Smitinand 1959 drawing fide; AOS Bulletin VOl 39 No 2 1970 photo; Orchid Genera in Thailand Vol VIII Bulbophyllum Thou. Seidenfaden 1979 drawing fide; Manual of Cultivated Orchids Bechtel, Cribb and Laurent 1981 photo fide; Orchids of Penninsular Malaysia Teo 1985; Orchids of Borneo Vol 2 Vermeullen 1991 drawing/photo fide; Orchids of Penninsular Malaysia and Singapore Seidenfadden and Wood 1992 drawing/photo fide; Thai Orchid Species Rakpaibulsombat 1992 photo fide; A Checklist of the Orchids of Borneo Wood & Cribb 1994; Manual of Orchids Stewart 1995; A to Z of SE ASian Orchids O'Byrne 2001 photo fide; Bulbophyllums and Their Allies Seigerist 2001; A Field Guide to the Wild Orchids of Thailand Vaddhanaphuti 2001 photo fide; Australian Orchid Review Vol 67 No 2 2002 photo; Australian Orchid Review Vol 70 No 3 2005; A field Guide to the Wild Orchids of Thailand Vaddhanaphuti 2005 fide; New species of Bulbophyllum from eastern Malesia (Orchidaceae) Nordic Journal of Botany 26: 129195, 2008 Vermuellen; Mille et Une Mini Orchideees Roguenant 2009 photo fide; Malesian Orchid Journal VOl 8 2011 photo fide; Wild Orchids of Penninsular Malaysia Ong, O'Byrne, Yong & Saw 2011 photo fide; Genera Orchidacearum Vol 6 Epidendroideae Pt 3 Pridgeon, Cribb Chase & Ramussen 2014 photo fide; Bulbophyllum of Borneo J J Verm, P O'Byrne and Lamb 2015 photos/drawing fide;

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