白花大苞兰（西藏植物志）
白花堇兰（中国高等植物图鉴）
Sunipia candida (Lindl.) P. F. Hunt in Kew Bull. 26 (1): 183. 1971; 中国高等植物图鉴 5: 738. 图8306. 1976; 西藏植物志 5: 834. 图459. 1987; Z. H. Tsi et S. C. Chen in Acta Phytotax. Sin. 33 (3): 296. 1995. ——Ione candida Lindl., Fol. Orch., Ione: 3. 1853; Seidenf. in Bot. Tidsskr. 64: 222, fig. 9. 1969. ——Bulbophyllum candidum (Lindl.) Hook. f., Fl. Brit. Ind. 5: 770. 1890, et in Hook., Icon. Pl. 1: t. 2050. 1892.
Tree trunks in forests; 1900-2900 m. S and SE Xizang, NW to S Yunnan [Bhutan, NE India]. |
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Rhizome creeping, ca. 1.5 mm in diam. Pseudobulbs 1.5-2 cm apart on rhizome, ovoid, 1-1.5 cm, 5-7 mm in diam., with 1 leaf at apex. |
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Leaf shortly petiolate; blade erect, narrowly oblong, 3-6 × 0.4-0.7 cm, leathery, apex obtuse and retuse. |
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Scapes solitary or in pairs, erect, 5-9 cm; peduncle yellowish green, 2-4 cm, slender, with 2 or 3 tubular sheaths ca. 6 mm; raceme 3-4 cm, usually 7- or 8-flowered; floral bracts narrowly lanceolate, 5-7 mm, membranous, apex acuminate. Pedicel and ovary 4-7 mm. Flowers thinly textured; sepals and petals greenish white; lip yellow in apical half and white in basal half. Dorsal sepal ovate-lanceolate, ca. 6 × 1.5 mm, apex acuminate; lateral sepals similar to dorsal sepal, their lower edges connate to each other except apices. Petals ovate, ca. 3 × 1.5-1.7 mm, membranous, 1-veined, margins erose, apex acute; lip ovate-lanceolate, abruptly contracted near middle, 5.6-6 × 1.6-2 mm, adaxially with 1 thickened keel from base to apex, margins erose-lacerate in basal half, apex obtuse. Column white, ca. 1 mm; foot ca. 1 mm; each pair of pollinia with a stipe and a viscidium. Fl. Jul-Aug. |
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