Dendrobium hercoglossum Rchb. f. 1886 SECTION Breviflores Hkr.f
Photo by Eric Hunt, plant grown by Hanging Gardens
Photo by Dale and Deni Borders
SLIGHT
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Common Name The Rampart Lip Dendrobium - In Thailand - Ueang dok ma khuea - In China Chong Chun Shi Hu
Flower Size 1" [2.5 cm]
Found in Myanmar, Thailand, Malaysia, Laos, Cambodia, Vietnam, southern China and the the Philippines in broadleaf, evergreen, lowland forests and primary montane forests at elevations of 50 to 1200 meters on trees along streams as a large sized, hot to cool growing epiphyte with slender, subclavate, clustered stems that are almost totally enveloped by leaf sheaths and carrying distichous, linear-lanceolate, obtusely and unequally bilobed apically leaves that flowers in spring though winter on a short to 1 1/2", axillary, 2 to 8 flowered raceme that arises from the nodes at or near the apex of the leafless or leafy stems with waxy, flat, showy, slightly fragrant flowers.
Water and fertilizer should be reduced for 2 to 3 months in the winter and resumed only with the onset of new growth in the spring.
Similar to D adunctum but differs mostly in that this one does not have wings on the column, D linguella which has the column wings but it has a much more open lip and D bifurcatum has no wings on the column but has an acute narrow lip and large oblong violet spots at the apex of the column,.
Synonyms Callista annamensis Kraenzl. 1910; Callista hercoglossa (Rchb. f.) Kuntze 1891; Callista vexans (Dammer) Kraenzl. 1910; Dendrobium hercoglossum var. album S.J.Cheng & Z.Z.Tang 1984; Dendrobium poilanei Guillaumin 1925; Dendrobium vexans Dammer 1910; Dendrobium wangii C.L. Tso 1933; Goldschmidtia gracilis Dammer 1910
References W3 Tropicos, Kew Monocot list , IPNI ; Materials For a Flora of the Malayan Penninsula Part 1 Ridley 1907; Orchidaceae Monandre-Dendrobiinae Fr. Kraenzlin 1910; Contributions to the Knowledge of the Orchid Flora of Sumatra Schlechter 1911; Flora of Malaya Vol 1 Orchids Holttum 1957; The Orchids of Thailand Seidenfaden & Smitinand 1960 drawing fide; The Orchids of Thailand Seidenfaden & Smitinand 1965 corrections photo good; AOS Bulletin Vol 39 No 10 1970; Beautiful Thai Orchid Species Kamemoto & Sagarik 1975 photo fide; The Genera of Orchidaceae in Hong Kong Shiu-ying Hu 1977; Orchidiana Philipiniana Vol 1 Valmayor 1984; Opera Botanica #83 Orchid Genera in Thailand XII Dendrobium Sw. Seidenfaden 1985 drawing/photo fide; A Guide to Orchids of the World Hodgson, Paine & Anderson 1991 Photo good; The Orchids of Penninsular Malaysia Wood & Seidenfaden 1992 drawing/photo fide; Thai Orchid Species Rakpaibulsombay 1992 photo fide; The Manual Of Cultivated Orchid Species Bechtel, Cribb & Laurent 1992; Identification of the Orchids [Orchidaceae Juss.] Vietnam Averyanov 1994; Manual of Orchids Stewart 1995; Orchid Species Culture; Dendrobium Bakers 1996; Dendrobium and its Relatives Lavarack, Harris and Stocker 2000 photo fide; A Field Guide to the Wild Orchids of Thailand Vaddhanaphuti 2001 photo fide; A to Z of South East Asian Orchid Species Vol 1 O'Byrne 2001 photo fide; AOS Bulletin Vol 71 No 2 2002 photo fide; Flora Malesiana Orchids of the Philippines Vol I Agoo, Shuiteman and de Vogel 2003; Hainan Island Wild Orchid illustrations 2005 photo fide; A field Guide to the Wild Orchids of Thailand Vaddhanaphuti 2005 photo fide; Flora's Orchids Nash & La Croix 2005; The Dendrobiums H. P. Wood 2006 photo fide; Wild Orchids in Myanamar Vol 3 Tanaka 2007 photo fide; 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; AOS Bulletin Vol 87 #10 2018 photo fide; AOS Bulletin Vol 88 #2 2019 drawing fide; Atlas of Native Orchids of China Vol 1 Jin Xiaohua, Li Jianwu and Ye Deping 2019 photo fide;
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