Cleisostoma williamsonii (Rchb.f.) Garay 1972SECTION Mitriformes Seiden 1975
Photos by © Ong Poh Teck
Photo by Greg and Kerri Steenbeeke and their Orkology Kreations Website
Common Name Williamson's Cleisostom [British Soldier 1800's nephew of John Day] - In China Hong Hua Ge Ju Lan
Flower Size 1/4" [.7 cm]
Found in Guangdong, Guangxi, Guizhou, Yunnan and Hainan provinces of China, Hong Kong, Assam India, eastern Himalayas, Bhutan, Andaman Islands, Myanmar, Thailand, Malaysia, Vietnam, Borneo, Java and Sumatra on dry rock faces in broad-leafed forests and hot dry valleys at elevations of 1100 to 2000 meters as a medium sized, cool growing epiphytic species with a short to long, stout to slender, erect to pendulous, thick, fleshy, distichous, terete, acute leaves that blooms in the summer and early fall on an axillary, 10 to 12" [25 to 30 cm] long, pendant, racemose to paniculate, to 3 branched, several flowered inflorescence that has successive opening flowers occuring .
Synonyms Cleisostoma demangei (Guillaumin) Garay 1972; Cleisostoma elegans Seidenfadden 1975; Cleisostoma elongatum (Rolfe) Garay 1972 ; Cleisostoma hongkongense (Rolfe) Garay 1972; Cleisostoma sacculatum (Ridl.) Garay 1972; Echioglossum elegans (Seidenf.) Szlach. 2003; Echioglossum sacculatum (Ridl.) Szlach. 1995; Echioglossum williamsonii (Rchb.f.) Szlach. 1995?; Saccolabium sacculatum (Ridl.) Ridl. 1907; Sarcanthus demangei Guillaumin 1930; Sarcanthus elongatus Rolfe 1903; Sarcanthus flaccidus J.J.Sm. 1918; Sarcanthus hongkongensis Rolfe 1898; Sarcanthus sacculatus Ridl. 1896; *Sarcanthus williamsonii Rchb.f. 1865
References W3 Tropicos, Kew Monocot list , IPNI ; The Orchids of Burma Grant 1895/95 as Sarcanthus elegans; Atlas des Orchidees Cultivees Constantin 1920 as Sarcanthus williamsonii drawing good; The Orchids of Thailand Seidenfaden & Smitinand 1959 as Sarcanthus williamsonii drawing; The Orchids of Thailand Seidenfaden & Smitinand 1964 as Sarcanthus sacculatus drawing ; Dansk Botansisk Arkiv Bind 29 N. R. 2 Orchid Genera in Thailand II Cleisostoma Seidenfaden 1975 as C elegans drawing fide [except for the drawings apical lip sqiggle]; Dansk Botansisk Arkiv Bind 29 N. R. 2 Orchid Genera in Thailand II Cleisostoma Seidenfaden 1975 drawing fide; Indian Orchids A Guide to Identification and Culture Vol 2 Pradhan 1979 as C elegans; Indian Orchids A Guide to Identification and Culture Vol 2 Pradhan 1979 drawing ok; Rudolf Schlechter Die Orchideen Band 1B lieferung 22 1329 - 1392 Brieger 1989 as C elegans; Rudolf Schlechter Die Orchideen Band 1B lieferung 22 1329 - 1392 Brieger 1989 photo fide; Orchids of Java Comber 1990; The Orchids of Penninsular Malaysia and Singapore Seidenfaden & Wood 1992 drawing fide; A Checklist of the Orchids of Borneo Wood & Cribb 1994 as C williamsonii; Identification of the Orchids [Orchidaceae Juss.] Vietnam Averyanov 1994; Native Orchids of China in Colour Singchi, Zhanhuo and Yibo 1999 photo fide as C williamsonii; Lindlyana Vol 15 No 4 2000 as C williamsonii; A field Guide to the Wild Orchids of Thailand Vaddhanaphuti 2001 as C elegans photo ok; Orchids of Sumatra Comber 2001; Orchids of Sarawak Beeman & Wood 2001; Orchids of Bhutan Pearce & Cribb 2002 as C williamsonii photo good; A field Guide to the Wild Orchids of Thailand Vaddhanaphuti 2005 photo ok; A field Guide to the Wild Orchids of Thailand Vaddhanaphuti 2005 as C elegans photo ok; A field Guide to the Wild Orchids of Thailand Vaddhanaphuti 2005 photo ok; Turczaninowia 19 (3): 5–58 L. V. Averyanov1 , Khang Sinh Nguyen etal 2016 photo fide; Orchids of India A Glimpse Misra 2007; Orchids of India A Glimpse Misra 2007 as Echioglossum williansonii; Native Orchids From Gaoligongshan Maountains, China Xiaohua, Xiaodong and Xiaochun 2009 photo fide as C williamsonii; Flora of China Vol 25 Zhengyi, Raven & Deyuan 2009; Mille et Une Mini Orchideees Roguenant 2009 as C arietinum photo fide; Wild Orchids of the Cameron Highlands REACH 2009 photo hmm; Flora of China Vol 25 Illustrations Zhengyi, Raven & Deyuan 2010 drawing ok; The Atlas of Wild Orchids in Hainan Island, China Shenyan and Junmei 2010 photo ok; The Wild Orchids in Yunnan Xu Xiang Ye & Liu 2010 photos HMM; Malesian Orchid Journal Vol 7 2011 drawing/photoWild Orchids of Penninsular Malaysia Ong, O'Byrne, Yong & Saw 2011 photo fide; The Wild Orchids of Hong Kong Barretto, Cribb and Gale 2011 drawing/photo fide; A to Z of South East Asian Orchid Species Vol 2 O'Byrne 2011 photo fide; Malesian Orchid Journal Vol 9 2012 photo fide; Taiwania 60(3):107-116, 2015 - New species of the genus Cleisostoma in the flora of Vietnam Averyanov, Tich and Canh; AOS Bulletin Vol 88 #10 2019 photo fide; Atlas of Native Orchids of China Vol 2 Jin Xiaohua, Li Jianwu and Ye Deping 2019 photo fide;
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