Dendrobium sulphureum Schltr. 1912

Dendrobium sulphureum Schltr. var. cellulosum ( J.J.Sm. ) T.M.Reeve & P.J.B.Woods 1989 SECTION Calyptrochilus Photo courtesy of Patricia Harding

Plant in situ New Guinea Photos by Paul Noben

Common Name or Meaning The Sulfer Yellow Dendrobium

Flower Size .56 to 1" [1.4 to 2.5 cm]

Found in New Guinea in mountain cloud forests on mossy tree trunks and twigs, at forest edges in subalpine grasslands and on trees in open grasslands at elevations of 1800 to 3600 meters as a mini-miniature to miniature sized, cool to cold growing epiphyte with ellipsoid or oval pseudobulbs carrying 1 to 8, distichous, arcuate, erect to suberect, soft, occasionally undualte margined, narrowly elliptic to oblanceolate to linear, obtuse to acute leaves that are deciduous with persistant leaf sheaths and blooms at any time of the year on a terminal, .7" [1.8 cm] long, simultaneously 1 to 2, rarely 3 or 4 flowered inflorescence arising on a leafy or leafless pseudobulb.

Synonyms *Dendrobium cellulosum J.J.Sm. 1929; Pedilonum sulphureum ( Schltr. ) S.Rauschert 1983; Dendrobium sulphureum var. cellulosum (J.J.Sm.) T.M.Reeve & P.Woods 1989; Dendrobium sulphureum var. rigidifolium T.M.Reeve & P.Woods 1989

References W3 Tropicos, Kew Monocot list , IPNI ; *The Orchidaceae of German New Guinea Schlechter 1912/85 drawing fide; Orchid Species Culture; Dendrobium Bakers 1996; Dendrobium and its Relatives Lavarack, Harris and Stocker 2000 photo fide; Flora Malesiana Orchids of New Guinea Vol II Shuiteman and de Vogel 2002; Australian Orchid Review Vol 70 No 3 2005; AOS Bulletin Vol 74 No 4 2005 photo; Flora's Orchids Nash & La Croix 2005 as D pandanicola photo fide; A Compendioum of Miniature Orchid Species Vol 1 Parsons and Gerritsen 2013 photo fide

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