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FOC | Family List | FOC Vol. 25 | Orchidaceae | Sunipia

10. Sunipia bicolor Lindley, Gen. Sp. Orchid. Pl. 179. 1833.

二色大苞兰 er se da bao lan

Bulbophyllum bicolor (Lindley) J. D. Hooker (1890), not Lindley (1830); Ione bicolor (Lindley) Lindley.

Rhizome creeping, elongate, usually branched, ca. 2 mm in diam. Pseudobulbs 2-3 cm apart on rhizome, nearly pyriform, 1-2 cm, ca. 1 cm in diam., 1-leaved at apex. Petiole 3-5 mm; leaf blade oblong, 3-9 × 0.6-1.6 cm, leathery, base contracted into petiole, apex obtuse and retuse. Scapes 1-3, suberect, 4.5-8 cm; peduncle 1.5-4 cm, slender, with 3 or 4 membranous sheaths to 0.6-1 cm; raceme 3-4 cm, usually 3-10-flowered; floral bracts ovate-lanceolate, 7-9 × ca. 2.5 mm, membranous, apex acute. Pedicel and ovary 2-3 mm. Flowers thinly textured; sepals and petals whitish with purplish red stripes; lip purple-red. Dorsal sepal ovate-lanceolate, 8-10 × ca. 2.5 mm, 3-veined, apex acute-acuminate; lateral sepals similar to dorsal sepal, base adnate to column foot, lower edges connate to each other with free apices. Petals ovate or ovate-oblong, ca. 3 × 2 mm, 1-veined, margins denticulate, apex obtuse-rounded; lip pandurate, ca. 6 × 3.5 mm, adaxially with 1 thickened ridge from base to apex and swollen at both ends, base subrounded-auriculate on both sides, margin erose-lacerate, apex obtuse. Column stout, ca. 1 mm long and wide; foot ca. 0.5 mm; each pair of pollinia with a stipe and a viscidium. Capsule ovoid, ca. 5 mm, ca. 3 mm in diam. Fl. and fr. Jul-Nov. 2n = 40.

Tree trunks in forests, rocks along valleys; 1900-2800 m. SE Xizang, SE to W Yunnan [Bangladesh, Bhutan, India, Myanmar, Nepal, N Thailand].


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