Species Information - Dendrobium particolor

Dendrobium particolor Ormerod, Malesian Orchid J. 13 (2014) 51, fig. 8.

Type: L.J. Brass 12167 (holo AMES, iso BRI, K).

Synonyms:

Epiphytic herb. Roots terete. 0.05–0.1 cm thick. Stems terete, slender, laxly-leaved, to 110 cm by 0.10–0.25 cm; internodes 1.5–3.6 cm long; branches 2–3, to 15 cm long. Leaves thin, lineaer-lanceolate, 3.6–11.4 by 0.35–0.90 cm; leaf sheaths tubular, obliquely truncate, slightly inflated or loose apically, papery, breaking down and leaving long fibrous remnants; apex acute, 3–5-nerved. Inflorescence axillary, short, 3-flowered; floral bracts broadly ovate, acute, c. 0.35 cm long. Pedicel and ovary subterete-clavate, 1.8 cm long. Median sepal oblong-elliptic, 1.3 by 0.58 cm; apex obtuse; 5-nerved. Lateral sepals ovate-triangular, 1.3 by 1.6 cm, joined at the front for 0.4–0.6 cm; apex acute to subacute, 6-nerved; mentum conical, 1.4–1.5 cm long. Petals oblong, 1.1–1.19 by 0.43–0.45 cm; apex subacute to obtuse; 3-nerved. Lip clawed, not lobed, c. 1.8 by 0.55–0.6 cm (1.1–1.2 cm wide when spread), joined to the column foot for 1.1–1.2 cm to form a tubular, rhombic nectary (unspread, viewed from above), which is truncate in lateral view, which exceeds the column apex by c. 0.25–0.3 cm and is in the apical third deeply concave-cucullate with the apical margins erose to lacerate. Column short, stout, c. 0.3 cm long (c. 0.3.5 cm long with anther cap); lateral margins with a low deltate wing.

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