白唇槽舌兰（植物分类学报）
Holcoglossum subulifolium (Rchb. f.) Christenson in Not. Bot. Gard. Edinb. 44 (2): 255. 1987; Seidenf. in Opera Bot. 95: 307, fig. 200. 1988; Averyanov, Vasc. Pl. Syn. Vietnam. Fl. 1: 111. 1990; Seidenf., l. c. 114: 442. 1990; Averyanov, Iden. Guide Vietnam. Orch.: 845. 1994; Z. H. Tsi et S. C. Chen in Acta Phytotax. Sin. 33 (6): 586. 1995; Z. H. Tsi, S. C. Chen et K. Mori, Wild Orch. China: 103, pl. 203. 1997; 中国兰花全书: 174. 1998. ——Vanda subulifolia Rchb. f., Flora 69: 552. 1886.
Epiphytic on tree trunks in broad-leaved evergreen forests; 1300-2200 m. SW Hainan, SE Yunnan (Malipo) [Myanmar, Thailand, Vietnam]. |
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Plants ascending. Stems 2-20 cm. Enclosed by persistent leaf sheaths. |
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Leaves often 3-5; blade nearly subterete, 5-14 cm × ca. 3 mm, fleshy, adaxially channeled, apex acute. |
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Inflorescence ascending, arching, ca. 14 cm, several flowered; floral bracts ovate, ca. 5 mm. Flowers opening widely, white, thinly textured, lateral lobes of lip brownish yellow, tinged with pale purple, mid-lobe with yellowish brown ridges, anther cap pale yellow; pedicel and ovary white, tinged with purple, 2-3 cm. Dorsal sepal suboblong, ca. 17 × 6 mm, base contracted, apex acute; lateral sepals falcate-oblong, ca. 19 × 7 mm. Petals oblong-lanceolate, slightly smaller than dorsal sepal; lip spurred, 3-lobed; lateral lobes erect, triangular, acute; mid-lobe broadly triangular, ca. 12 × 10 mm, concave or shallowly cucullate, base with 3 ridges, margin incurved, undulate and irregularly denticulate; spur conic, 2-3 mm, obtuse. Column 4-5 mm, foot very short; anther cap slightly narrowed toward apex. Fl. Mar-May. |
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