二色大苞兰（植物分类学报）
Sunipia bicolor Lindl., Gen. Sp. Orch. Pl.: 179. 1833; Seidenf. in Opera Bot. 89: 176, fig. 116. 1986; Z. H. Tsi et S. C. Chen in Acta Phytotax. Sin. 33 (3): 296. 1995. ——Ione bicolor (Lindl.) Lindl., Fol. Orch., Ione: 3. 1853; King et Pantl. in Ann. Bot. Gard. Calcutta 8: 159, Pl. 216. 1898; Tuyama in H. Hara, Fl. East. Himal. 1: 440. 1966. et l. c. 2: 190. 1971; H. Hara et al., Enum. Flow. Pl. Nepal 1: 57. 1978. ——Bulbophyllum bicolor (Lindl.) Hook. f., Fl. Brit. Ind. 5: 770. 1890.
Tree trunks in forests, rocks along valleys; 1900-2800 m. SE Xizang, SE to W Yunnan [Bangladesh, Bhutan, India, Myanmar, Nepal, N Thailand].Type specimens from Nepal. |
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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. |
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Petiole 3-5 mm; leaf blade oblong, 3-9 × 0.6-1.6 cm, leathery, base contracted into petiole, apex obtuse and retuse. |
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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. |
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