Bulbophyllum planibulbe (Ridl.) Ridl. 1907SECTION Planibulbus Verm, Schuit & De Vogel 2014

TYPE for the section

Photo courtesy of MR.TIPOL RUANGAKSORN and Exotic Bulbophyllum

Another Flower Photo by Belle-Orchidee and Belle-Orchidee Ebay Store UK

to

Common Name The Flat Bulb Bulbophyllum

Flower Size 1/2" [1.1 cm]

Found in peninsular Malaysia, Thailand, Borneo as well as Sumatra in lowlands and hill forests creeping on mossy tree trunks and branches at elevations around 700 meters as a mini-miniature sized, hot to warm growing epiphyte with flattened, ovoid to ellipsoid, parallel to the rhizome, reddish to brownish purple pseudobulbs and carrying a single apical, thick elliptic, apically bidentate, gradually narrows below in to the sessile base leaf that blooms on an erect to descending, slender, lax, reddish to purple, 3 3/4" [9 cm] long, 2 to 5 flowered, arising laterally from the base, subumbellate inflorescence

Originally described erroneously as a Cirrhopetalum and later moved to Bulbophyllum and the section Desmosanthes.

Synonyms Bulbophyllum tenerum Ridl. 1898; *Cirrhopetalum planibulbe Ridl. 1893;

References W3 Tropicos, Kew Monocot list , IPNI ; Flora of Malaya Vol 1 Holttum 1957; The Orchids of Thailand Seidenfaden & Smitinand 1959 as B tenerum; Notes on Cirrhopetalum Seidenfaden 1973 drawing ok; Orchid Genera in Thailand VIII Bulbophyllum Thou. Seidenfadden 1979 drawing fide; Orchids of Penninsular Malaysia and Singapore Seidenfaden 1992 drawing fide; Thai Orchid Species Rakpaibulsombat 1992 photo fide; The Plants of Mount Kinabalu Vol 2 Orchids Wood Beaman & Beaman 1993; A Checklist of the Orchids of Borneo Wood & Cribb 1994; Bulbophyllums and Their Allies Seifgerist 2001; Bulbophyllum and Their Allies Seigerist 2001 as B tenerumOrchids of Sumatra Comber 2001; A field Guide to the Wild Orchids of Thailand Vaddhanaphuti 2005 photo fide; The Orchids of Mount Kinabalu Vol 2 Wood, Beaman, Lamb, Chu Lun and Beaman 2011; Wild Orchids of Penninsular Malaysia Ong, O'Byrne, Yong & Saw 2011 photo fide; A Compendium of Miniature Orchid Species Gerritsen and Parsons 2013 photo fide; Genera Orchidacearum Vol 6 Epidendroideae Pt 3 Pridgeon, Cribb Chase & Ramussen 2014; Bulbophyllum of Borneo J J Verm, P O'Byrne and Lamb 2015 photos/drawing fide

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