Bulbophyllum cylindraceum Wall ex Lindl. 1830 SECTION Brachystachyae Benth. & Hook. f. 1883
Photo by © John Varigos
EARLY 
Common Name The Cylindrical Bulbophyllum [refers to the inflorescence] - In China Da Bao Shi Dou Lan
Flower Size .3" [8mm]
Found in Yunnan province of China, Nepal, eastern Himalayas, Sikkim, Bhutan, India, Nepal, western Himalayas, Myanmar and Thailand in forests on trees and rocks at elevations of 1400 to 2400 meters as a small sized, cool to cold growing epiphyte or lithophyte with a creeping, stout rhizome with .2 to .25" [5 to 7 mm] between each very small to absent pseudobulb and carrying a rigid, erect, elliptic-oblong to obovate-lanceolate, fleshy to leathery, obtuse to apiculate, gradually narrowing below into the elongate, channeled, petiolate base leaf that blooms in the fall and early winter on basal, erect then arching to pendent, densely many flowered inflorescence can be up to 12 to 18" [ 30 to 45 cm] long and has a basal sheath .
CAUTION I cannot personally verify this determination.
Synonyms Bulbophyllum imbricatum Griff. 1851; Phyllorkis cylindracea (Wall. ex Lindl.) Kuntze 1891
References W3 Tropicos, Kew Monocot list , IPNI ; The Orchids of Burma Grant 1895/95; The Orchids of Sikkim-Himalaya Part 1 King & Pantling 1898 drawing fide; The Orchids of Sikkim-Himalaya Part 1 King & Pantling 1898 as B cylindraceum var khasiana drawing fide; Die Orchideen Von Java J.J.Sm. 1905; The Orchids of Thailand Seidenfaden & Smitinand 1961; Orchid Genera in Thailand Vol VIII Bulbophyllum Thou. Seidenfaden 1979; Indian Orchids Guide to Identification and Culture Pradhan 1979 drawing fide; Orchids of Nagaland Deorani & Naithani 1995 drawing good; Bulbophyllums and Their Allies Seigerist 2001; Orchids Of India II Biodiversity & Status of Bulbophyllum Thou Augustine & Kumar 2001 drawing/photo ok; Orchids of Bhutan Pearce & Cribb 2002; Orchids of India A Glimpse Misra 2007; Thirty Two New Species of Bulbophyllum (Orchidaceae)from Sulawesi J.J. VERMEULEN 1 AND P. O’BYRNE Gard. Bulletin Singapore 60 (1): 73-153 2008; Native Orchids From Gaoligongshan Maountains, China Xiaohua, Xiaodong and Xiaochun 2008 photo ok; Flora of China Vol 25 Zhengyi, Raven & Deyuan 2009; Flora of China Vol 25 Illustrations Zhengyi, Raven & Deyuan 2010 drawing hmm; The Wild Orchids in Yunnan Xu Xiang Ye & Liu 2010 photo ok; A Century of New Orchid Records in Bhutan Royal Government of Bhutan 2017 drawing/photo fide; Atlas of Native Orchids of China Vol 2 Jin Xiaohua, Li Jianwu and Ye Deping 2019 photo fide;
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