Bulbophyllum tortuosum [Bl.] Lindl. 1830 SECTION Monanthes [Bl] Avery. 1994
TYPE for the section
Photo by © Art Vogel
Photo by Andy's Orchids, Copyright © 2002 All rights reserved
To 
Common Name The Twisted Bulb Bulbophyllum
Flower Size .6" [1.5 cm]
Found in the eastern Himalayas, Bhutan, Myanmar, Thailand, Malaysia, Laos, Vietnam, Malaysia, Borneo, Java and Sumatra in primary ridge, and hill forests as a small sized, hot to cool growing epiphyte at elevations of 200 to 2000 meters with terete, narrowly ovoid pseudobulbs adpressed to the rhizome and enveloped basally by a ring of bristles and arranged in a tightly clustered chain with a single, apical, linear, acute, grooved shortly petiolate base leaf that blooms in the spring on a lateral, very short, single flowered inflorescence arising from and held close to the rhizome.
This plant has a pendant growing rhizome so they need to be mounted on a tree fern pole and given copious quantities of water and fertilizer and kept with very humid conditions, ample air circulation and light shade.
Synonyms Bulbophyllum listeri King & Pantl. 1895; Bulbophyllum ulcerosum J.J.Sm. 1910; *Diphyes tortuosa Blume 1825; Phyllorchis tortuosa {Bl.] Kuntze 1891
References W3 Tropicos, Kew Monocot list , IPNI ; The Orchids of Sikkim-Himalaya Part 1 King & Pantling 1898 as B listeri drawing fide; Die Orchideen Von Java J.J.Sm. 1905; Die Orchideen Von Java J.J.Sm. 1905; Die Orchideen Von Java Figuren Atlas J.J.Smith 1908 drawing fide; Orchidaceae of German New Guinea Schlechter 1912/1985; Orchidaceae of German New Guinea Schlechter 1912/1985 as B indragirnse; Flora of Malaya Vol 1 Holttum 1957; AOS Bulletin Vol 27 No 1 1958 as B listeri drawing ok; The Orchids of Thailand Seidenfaden & Smitinand 1961 drawing ok; Dansk Botanisk Arkiv Bind 33 #3 Orchid Genera in Thailand VIII Bulbophyllum Thou Seidenfaden 1979 drawing fide; Indian Orchids Guide to Identification and Culture Vol 2 Pradhan 1979 as B listeri drawing fide; Orchids of Java Comber 1990 photo?; The Orchids of the Solomon Islands and Bougainville Lewis & Cribb 1991 as B ulcerosum; Orchids of Penninsular Malaysia and Singapore Seidenfaden & Wood 1992 drawing/photo fide; The Plants of Mount Kinabalu Vol 2 Orchids Wood Beaman & Beaman 1993; A Checklist of the Orchids of Borneo Wood & Cribb 1994; Identification of the Orchids [Orchidaceae Juss.] Vietnam Averyanov 1994; Orchids Of India II Biodiversity & Status of Bulbophyllum Thou Augustine & Kumar 2001 as B listeri; Bulbophyllums and Their Allies Seigerist 2001; A Field Guide To the Wild Orchids of Thailand Vaddhanaphuti 2001 photo ok; Orchids of Sumatra Comber 2001 photo ?; Orchids of Sarawak Beaman, Wood & Beaman etal 2001; Orchids of Bhutan Pearce & Cribb 2002; A field Guide to the Wild Orchids of Thailand Vaddhanaphuti 2005 photo ok; Orchids of India A Glimpse Misra 2007; New species of Bulbophyllum from eastern Malesia (Orchidaceae) Nordic Journal of Botany 26: 129 195, 2008 Vermuellen; Wild Orchids of the Cameron Highlands REACH 2009 photo fide; The Orchids of Mount Kinabalu Vol 2 Wood, Beaman, Lamb, Chu Lun and Beaman 2011 drawing hmm/photo fide; Wild Orchids of Penninsular Malaysia Ong, O'Byrne, Yong & Saw 2011 photo fide; Philippine Native Orchid Species Cootes 2011 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 photo/drawing fide
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