Dendrobium gramineum Ridl.1908 SECTION Conostalix
Photo by J.B.Comber Copyright © and the Swiss Orchid Foundation at the Jany Renz Herbaria
Photo by Peter O'Byrne Copyright © and the Swiss Orchid Foundation at the Janny Renz Herbaria
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Common Name The Grass-Like Leaved Dendrobium
Flower Size .6" [1.5 cm]
Found in Thailand, Malaysia and Borneo in decaying leaf litter of hill and lower montane forests at elevations of 500 to 1700 meters as a large sized, warm to cool growing terrestrial with an erect, sometimes branching, slender, wiry stem carrying many, linear-lanceolate, ridged, channeled, incurved along the margin, unequally bilobed apically, 2 ranked leaves with spotted and black hair covered leaf sheaths that bloom in the late winter on a short, single flowered inflorescence and carrying pendulous flowers
Almost all references out there make this species Dendrobium villosulum Wall. ex Lindl. but new research done by Wood 2014 shows that D villosulum as a separate species with a habit of D gramineum but the lip is unique to the SECTION Conostalix as it is trifurcate so it occurs only on Pinang Island in Malaysia.
Synonyms Conostalix graminea (Ridl.) Rauschert 1983; Conostalix orbicularis (J.J.Sm.) Rauschert 1983; Dendrobium fuscopilosum Ames & C.Schweinf. 1920; Dendrobium orbiculare J.J.Sm. 1914
References W3 Tropicos, Kew Monocot list , IPNI ; Materials For a Flora of the Malayan Penninsula Part 1 Ridley 1907 as D villosulum; Orchidaceae Monandre-Dendrobiinae Fr. Kraenzlin 1910 as D villosulum; Gard. Bull. Singapore 11:280 Holttum 1947 as D melanochlamys; Flora of Malaya Vol 1 Orchids Holttum 1953 as D melanochlamys; Indian Orchids: A guide to Identification and Culture Vol II Pradhan 1979 drawing fide; Die Orchideen lieferung 11/12 633 - 752 Brieger 1981 as Conostalix villosula photo plant only; The Orchids of Penninsular Malaysia and Singapore Wood & Seidenfaden 1992 as D villosulum drawing fide; The Plants of Mount Kinabalu Vol 2 Orchids Wood Beaman & Beaman 1993 as D orbiculare photo fide; A Checklist of the Orchids of Borneo Wood & Cribb 1994 as D orbiculare;A Checklist of the Orchids of Borneo Wood & Cribb 1994 as D villosulum; Orchid Species Culture; Dendrobium Bakers 1996; Orchid Species Culture; Dendrobium Bakers 1996 as D orbiculare; Orchid Species Culture Dendrobium Bakers 1996 as D villosulum; Dendrobium and its Relatives Lavarack, Harris and Stocker 2000 as D villosulum photo fide; Orchids of Sarawak Beaman, Wood, Beaman & Beaman 2001; Orchids of Sarawak Beaman, Wood, Beaman & Beaman 2001 as D orbiculare; Orchids of Sarawak Beaman, Wood, Beaman & Beaman 2001 as D villosulum; The Dendrobiums H. P. Wood 2006 as D villosulum photo fide; Malesian Orchid Journal Vol 5 2010 as D villosulum; The Orchids of Mount Kinabalu Vol 1 Wood, Beaman, Lamb, Chu Lun and Beaman 2011 as the real D villosulum drawing/photo fide; Dendrobium of Borneo Wood 2014 photo/drawing fide
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