Dendrobium williamsonii J. Day & Rchb. f. 1869 SECTION Formosae
Photo by M Lecoufle and The Swiss Orchid Foundation at the Jany Renz Herbaria Website
Photos by Dale and Deni Borders
To 
LATE
To EARLY
Common Name Williamson's Dendrobium [English Ochid Collector in India 1800's] - In China Hei Mao Shi Hu
Flower Size 3"
Found in the Chinese Himalayas, Assam India, Myanmar, Thailand, and Vietnam in forests on tree trunks at elevations around 600 to 1400 meters as a small sized, warm to cool growing epiphyte with upright, elongate-fusiform, velvety stems that are many leafed towards the apex carrying, oblong or lanceolate, velvety, obscurely bilobed apically leaves with leaf sheaths that are densely covered with black hairs that blooms in the late winter and early spring on a very short, black hairy, 1 to 3 flowered inflorescence carrying waxy, fragrant spicy to citrus scented flowers that arise from near the apex of the newest maturing cane and appreciates a bright location.
Water and fertilizer should be reduced through the winter months and resumed only after the initiation of new growth in the spring.
Synonyms Callista lubbersiana (Rchb. f.) Kuntze 1891; Callista williamsonii (J. Day & Rchb. f.) Kuntze 1891; Dendrobium lubbersianum Rchb.f 1882
References W3 Tropicos, Kew Monocot list , IPNI ; A Century of Indian Orchids Vol 5 Hooker 1895 drawing fide; Orchids of Burma Grant 1895/1995 as D lubbersianum; Orchidaceae Monandre-Dendrobiinae Fr. Kraenzlin 1910 as D lubbersianum; Orchidaceae Monandre-Dendrobiinae Fr. Kraenzlin 1910; Die Orchideen Schlechter 1915; Die Orchideen 2 Auflage Schlechter 1927; The Orchids of Thailand Seidenfaden & Smitinand 1960; Encyclopedia of Cultivated Orchids Hawkes 1965; Beautiful Indian Orchids and How to grow them Ghose 1968; Beautiful Indian Orchids and How to grow them Ghose 1968 as D williamson var latiritia; Orchid Digest Vol 38 #4 1974 photo fide;Indian Orchids: A guide to Identification and Culture Vol II Pradhan 1979 photo fide; AOS Bulletin Vol 52 # 12 1983 photo fide; AOS Bulletin Vol 54 No 10 1985 photo fide; Opera Botanica #83 Orchid Genera in Thailand XII Dendrobium Sw. Seidenfaden 1985 drawing/photo fide; Simon & Schuster's Guide to Orchids Orchids 1988 photo fide; The Manual Of Cultivated Orchid Species Bechtel, Cribb & Laurent 1992 photo fide; Identification of the Orchids [Orchidaceae Juss.] Vietnam Averyanov 1994; Manual of Orchids Stewart 1995; Orchid Species Culture; Dendrobium Bakers 1996; Wild Orchids of China Tsi, Chen Mori 1997 photo fide; Native Orchids of China in Colour Singchi, Zhanhuo and Yibo 1999 photo fide; Dendrobium and its Relatives Lavarack, Harris and Stocker 2000; A Field Guide to the Wild Orchids of Thailand Vaddhanaphuti 2001 photo fide; A field Guide to the Wild Orchids of Thailand Vaddhanaphuti 2005 photo fide; Hainan Island Wild Orchid illustrations 2005 photo fide; Flora's Orchids Nash & La Croix 2005 photo fide; The Dendrobiums H. P. Wood 2006 photo fide; Orchids of India A Glimpse Misra 2007; Native Orchids From Gaoligongshan Mountains, China Xiaohua, Xiaodong and Xiaochun 2009; A Field Guide to the Orchids of China Singchi, Zhongjian, Yibo, Xiaohua and Zhanhuo 2009 photo fide; Flora of China Vol 25 Zhengyi, Raven & Deyuan 2009; Orchid Digest Vol 74 #4 2010 photo fide; The Atlas of Wild Orchids in Hainan Island, China Shenyan and Junmei 2010 photo fide; The Wild Orchids in Yunnan Xu Xiang Ye & Liu 2010 photos fide; Wild Orchids of Myanmar Hyan Tun [Mr Myanmar] 2014 Photo fide; Orchid Digest Vol 80 #2 2016; Turczaninowia 19 (3): 5–58 L. V. Averyanov, Khang Sinh Nguyen etal 2016 photo fide; Atlas of Native Orchids of China Vol 1 Jin Xiaohua, Li Jianwu and Ye Deping 2019 photo fide;
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