Bulbophyllum auratum (Lindl.) Rchb.f. 1861 SECTION Ephippium Schlechter 1913
Photos by Manorot Tangsaveepha Copyright ©, and the Butterfly and Orchids Photo Gallery
Photo by Patricia Harding
EARLY
to 
Common Name The Golden Bulbophyllum
Flower Size 1 1/2" [3.75 cm]
Found in Thailand, Malaysia, Borneo, Sumatra and the Philippines at elevations around 100 to 1200 meters found on mangrove trees as a hot to cool growing epiphyte with a creeping rhizome with 1/4 to 3/4" [1 to 2 cm] between each clustered ovoid, grooved, dark olive pseudobulb carrying a single, apical purplish leaf with a blunt apex and the base narrowing into a petiole that blooms in early spring, summer and fall on a solitary, lateral to erect, slender, basal, to 6" [15 cm] long, purplish, umbellate inflorescence drooping, shoe-shaped, fragrant flowers occuring .
A hot to cool growing species that needs partial shade, high humidity and good air circulation.
Synonyms Bulbophyllum borneense (Schltr.) J.J. Sm. 1912; Bulbophyllum campanulatum Rolfe 1909; Bulbophyllum campanulatum var. inconspicuum J.J.Sm. 1920; *Cirrhopetalum auratum Lindley 1840; Cirrhopetalum borneense Schltr. 1906; Cirrhopetalum campanulatum [Rolfe] Rolfe 1910; Cirrhopetalum candelabra Lindley ex Moore 1854; Phyllorchis aurata (Lindl.) Kuntze 1891
References W3 Tropicos, Kew Monocot list , IPNI ;
Die Orchideen Schlechter 1915 as Cirrhopetalum campanulatum; Orchids of Malaya Holttum Vol 1 Orchids 1953; The Orchids of Thailand Seidenfaden & Smitinand 1961 as B campanulatum drawing/photo fide; The Orchids of Thailand Seidenfaden & Smitinand 1965 corrections as B campanulatum; Encylopedia of Cultivated Orchids Hawkes 1965 as B campanulatum; Notes on Cirrhopetalum Seidenfadden 1973 drawing fide; Dansk Botanisk Arkiv Bind 33 #3 Orchid Genera in Thailand VIII Bulbophyllum Thou Seidenfaden 1979 drawing fide; The Complete Writings on Philippine Orchids Vol 1 Quisumbing 1981; Orchidiana Philipiniana Vol 1 Valmayor 1984; The Orchids of Penninsular Malaysia and Singapore Seidenfaden & Woods 1992 drawing/photo fide; Thai Orchid Species Rakpaibulsombat 1992 as Cirrhopetalum auratum photo ok; The Plants of Mount Kinabalu Vol 2 Orchids Beaman, Wood, Beaman & Beaman 1993; A Checklist of the Orchids of Borneo Wood & Cribb 1994; Orchid Digest Vol 59 No 4 1995 photo fide; Bulbophyllum and Their Allies Seigerist 2001 as Cirrhopetalum auratum; A to Z Of SE Asian Orchids O'Byrne 2001 photo fide; Botanica's Orchids Laurel Glen 2001; Orchids of Sarawak Beeman & Wood Beaman etal 2001; Orchids of Sumatra Comber 2002 photo ?; Flora Malesiana Orchids of the Philippines Vol I Agoo, Shuiteman and de Vogel 2003; A field Guide to the Wild Orchids of Thailand Vaddhanaphuti 2005 as Cirrhopetalum auratum photo fide; The Orchids of Mount Kinabalu Vol 1 Wood, Beaman, Lamb & Lun 2011 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 good; Bulbophyllum of Borneo J J Verm, P O'Byrne and Lamb 2015 photos/drawing fide;
Bulbophyllum auratum (Lindl.) Ridl. 1861 var alba
An albino version of the previous species.
References W3 Tropicos, Kew Monocot list , IPNI ; Orchid Digest Vol 76 #2 2012 as B auratum fma flava photo fide;
Bulbophyllum auratum (Lindl.) Ridl. 1861 var Orange
Lip Detail Photo courtesy of Khairimhd
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