Volume 12 > Part 2 > Year 2014 > Page 435 > Orchidaceae > Collabium

1. Collabium chinense (Rolfe) Tang & F.T.Wangwfo-0000916597

Fl. Hainan. 4: 217. 1977; Seidenf., Opera Bot. 72: 24. 1984; Opera Bot. 114: 323, t. XXc. 1992; S.C.Chen & J.J.Wood in Z. Wu et al. (eds), Fl. China 25: 312. 2009.— Nephelaphyllum chinense Rolfe, Bull. Misc. Inform. Kew 1896: 194. 1896.— Tainia chinensis (Rolfe) Gagnep., Bull. Mus. Hist. Nat. (Paris), sér. 2, 4: 706. 1932. Fig. 245; Plate XXXV: 1.

Accepted Name : This is currently accepted.

Synonyms & Citations :

Description : Flowering shoots 15–25 cm tall; rhizome terete, slender, 3–4 cm in diameter. Pseudobulbs cylindric, 4–5 cm by 2–4 mm. Foliage leaves ovate to ovate-oblong, 10–15 by 5–7 cm, apex acute, base rounded or cordate, lamina green with purple patches; petiole 1–2 cm long, base covered with sheaths. Inflorescence glabrous, to 15 cm long; peduncle 12–18 cm long, with 2–4 membranous sheaths at base; rachis 4–5 cm long; floral bracts ovate-lanceolate, 1–1.5 cm long, apex acuminate. Flowers 4–6, suberect; pedicel and ovary subtwisted, 0.8–1.5 cm long. Sepals green, dorsal sepal oblong-lanceolate, 10–13 by 2.5–3 mm, apex acute, 4- to 5-nerved; lateral sepals falcate-oblong, more or less of the same size as dorsal sepal. Petals green, oblong lanceolate, 10–11 by 2–2.5 mm, apex acute to acuminate. Labellum 3-lobed, obcordate-obovate, 9–13 by 9–12 mm, epichile white, hypochile light yellow, with bright yellow median ornaments and reddish-purple stripes on each side; side lobes deltoid, obtuse to rounded, 2–4 mm long, much shorter than mid-lobe. Column light yellow, 5–8 mm long, slightly dilated towards apex, with triangular teeth on both sides near apex; column foot with a cylindric green spur.

Thailand : NORTHERN: Phitsanulok (Phu Hin Rong Kla); EASTERN: Nakhon Ratchasima (Khao Yai); SOUTH-WESTERN: Phetchaburi (Kaeng Krachan); PENINSULAR: Surat Thani (Ban Don).

Distribution : Myanmar, S China (type), Taiwan, Vietnam.

Ecology : Tropical evergreen forests, hill evergreen forests; 700–1,200 m alt. Flowering: July–August.

Vernacular : Ueang son aep chin (เอื้องซ่อนแอบจีน).