Species Information - Dendrobium beleense

Dendrobium beleense Ormerod, Checkl. Papuasian Orch. (2017) 174, 470 (fig,).

Type: Brass 11428 (holo AMES).

Synonyms:

Roots and rhizome not seen. Stem near the base terete, higher up semi-elliptic in section, laxly leafy, 91.5 by up to 0.2 cm; branches to 21 cm long; exposed part of internodes 0.3-1.8 cm long. Leaves linear­lanceolate, thin, 5.7-8.4 by 0.35-0.4 cm; leaf sheaths tubular, finely striate, 1.1-3.6 cm long, its apex with a triangular, acute, 0.05-0.15 cm long lobe; apex with 2 minute obtuse lobes differing 0.05-0.1 cm in length; 3-nerved. Inflorescence 2-flowered; basal inflorescence scales: 1st transversely oblong, 0.2 by 0.25 cm, 2nd oblong, slightly curved upward, 0.5-0.6 by 0.17-0.2 cm, with obtuse apex. Pedicel and ovary club-shaped, 1 cm long. Median sepal linear-lanceolate, 4.97 by 0.4 cm; apex acute. Lateral sepals in basal half obliquely oblong­lanceolate, upper half linear, 5 by 0.8 cm; apex acute; 5-nerved; mentum conical, 0.65 cm long, with obtuse apex. Petals linear-ligulate, 4.43 by 0.2 cm; apex acute; 5-nerved. Lip 3-lobed, 1.5 cm long; hypochile 0.62 by 0.7 cm, its lateral lobes short, triangular, 0.12 cm long (along sinus), with irregular upper margin and acute apex, keels 5, the outer 4 at the base of the hypochile and very short, the median keel plate-like, along the entire hypochile and lowering and terminating on the base of the epichile; epichile broadly ovate, 0.87 by 1.1 cm, its margins irregular to subdentate, often theseteeth ending in a clavate to subulate projection, its surface sublaxly covered in blackish fleshy hairs, with acute apex. Column slender, median on each side with a tiny obtuse lobule, 0.48 cm long (including the anther); column foot curved forward, median inside with an obliquely raised, concave protuberance c. 0.6 cm long.
(After Ormerod, 2017).

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