环唇石豆兰  转到中国兰科植物志

Bulbophyllum corallinum  分类来源:中国植物志

环唇石豆兰(植物分类学报) 

Bulbophyllum corallinum Tix. et Guillaum. in Bull. Mus. Hist. Nat. (Paris) 2 ser., 35 (2): 204. 1963; Seidenf. in Dansk Bot. Ark. 33 (3): 79, fig. 47. 1979; Averyanov, Vasc. Pl. Syn. Vietnam. Fl. 1: 33. 1990; Seidenf. in Opera Bot. 114: 296, fig. 196. 1992; Averyanov, Iden. Guide Vietnam. Orch.: 266. 1994. 

Tree trunks in open forests; 1100-1600 m. S and SE Yunnan [Myanmar, N Thailand, Vietnam].

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Rhizome patent to pendulous, with roots creeping alongside it toward base. Pseudobulbs close or ± spaced, ± curved, subcylindric or ovoid, ca. 1 cm, with a terminal leaf.

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Leaf subsessile; blade narrowly oblong or ligulate, 25-43 × 4-7 mm, apex acute. 

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Scape from base of pseudobulb or node of rhizome, very short; peduncle less than 5 mm; raceme dense with several small flowers, and scalelike sheaths at base; floral bracts membranous, longer than pedicel and ovary, ca. 4 mm, apex acute. Flowers brownish red. Sepals free, thickly textured; dorsal sepal ovate-lanceolate, 2.2-6 × ca. 1 mm, apex acuminate; lateral sepals obliquely ovate-triangular or falcate-lanceolate, 2.3-7 × ca. 1 mm, base adnate to column foot forming a mentum, margins strongly incurved above middle, apex long acuminate. Petals oblong, 1.2-1.8 × 0.5-0.8 mm, membranous, margins irregularly denticulate, apex acute; lip hooked-recurved, ca. 1.3 × 0.3 mm, fleshy, base connected to end of column foot by a mobile joint, margins densely white villous, apex obtuse; disk with 2 keels. Column ca. 0.6 mm; foot ca. 1 mm, with free part ca. 0.3 mm; stelidia fusiform, ca. 0.8 mm; anther cap glabrous, centrally with 1 ridge. Fl. Mar-Sep.

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果:

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