Prev Taxon: Genus Dendrobium section Herpetophytum
Current Genus: Genus Dendrobium section Latouria
Next Taxon: Genus Dendrobium section Microphytanthe
Dendrobium simplex J.J.Sm., Bull. Jard. Bot. Buitenzorg, sér. 2, 2 (1911) 8; Nova Guinea 12, 1 (1913) 40, t. 11, fig. 30.
Type: Kock, de 113.
Synonyms:
A dwarf epiphytic herb. Pseudobulbs clustered, globose or obpyriform, 0.65-2 by 1-2 cm, rugulose, reddish purple, 2-leaved at apex. Leaves spreading or suberect, coriaceous, ovate or ovate-elliptic, obtuse or subacute, 2-4 by 1.2-1.6 cm. Inflorescence erect or spreading, few-flowered, up to 8 cm long; bracts lanceolate, acute, 3-4.5 mm long. Flowers small, greenish red with a white callus; pedicel and ovary 1.2 cm long. Dorsal sepal oblong-elliptic, rounded at apex, 0.9-1.5 by 0.9 cm; lateral sepals obliquely triangular, acute or subacute, 1-1.8 by 1.1 cm; mentum broadly conical, 0.9 cm long. Petals elliptic, obtuse, 1.4 by 0.7 cm, with somewhat erose margins. Lip entire, oblong-elliptic, rounded at apex, 1.2 by 1 cm, with incurved margins; callus fleshy, 3-ridged. Column 2 mm long; foot 7-9 mm long.
(after Cribb, 1983).
Flowers greenish tinged red with a white callus on the lip.
Epiphyte in montane forest and scrub, often on trunks of Nothofagus. Altitude 2400 to 3100 m.
New Guinea.
Cool growing epiphyte, keep in shade.
March.
Despite its small size, Dendrobium simplex J.J.Sm. undoubtedly should be placed in sect. Latouria. It is allied to Dendrobium cruttwellii and has a similar flower with an entire lip with incurved margins but is readily distinguished by its smaller size, globose rugulose pseudobulbs and ovate or ovate-elliptic leaves lacking a noticeable petiole.
(after Cribb, 1983).
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