拟万代兰（中国高等植物图鉴）
Vandopsis gigantea (Lindl.) Pfitz. in Nat. Pflanzenfam. ed. 2, 6: 210. 1889; 中国高等植物图鉴 5: 754. 图8337. 1976; Seidenf. in Opera Bot. 95: 38., fig. 19. 1988; Averyanov, Vasc. Pl. Syn. Vietnam. Fl. 1: 164. 1990; Seidenf. et J. J. Wood, Orch. Penins. Malay. Singap.: 585, fig. 266. 1992; Seidenf. in Opera Bot. 114: 356. 1992; Averyanov, Iden. Guide Vietnam. Orch.: 337. 1994; Z. H. Tsi et S. C. Chen in Acta Phytotax. Sin. 33 (3): 296. 1995; Z. H. Tsi, S. C. Chen et K. Mori, Wild Orch. China: 114, pl. 288. 1998; 中国兰花全书: 220. 1998.——Vanda gigantea Lindl., Gen. Sp. Orch. Pl.: 215. 1833.——Stauropsis chinensis Rolfe in Kew Bull.: 130. 1907. ——Vandopsis chinensis (Rolfe) Schltr. in Fedde Repert. Sp. Nov. Beih. 4: 283. 1919.
Epiphytic on tree trunks in open forests or at forest margins; 800-1700 m. S Guangxi, S Yunnan [Laos, Malaysia (Peninsular), Myanmar, Thailand, Vietnam]. |
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Plants large. Stems 30 cm or longer, to 5 cm in diam., stout, many leaved. |
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Leaves recurved, broadly lorate, 40-50 × 5.5-7.5 cm, fleshy, obtuse, unequally bilobed; basal sheaths persistent and amplexicaul. |
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Inflorescences often 1 or 2, to 33 cm; peduncle and rachis 8-10 mm in diam., slightly fleshy, with 2 or 3 broadly ovate-triangular sheaths; raceme nodding, densely many flowered; floral bracts broadly ovate, 5-8 mm, rather fleshy. Flowers fleshy, opening widely, golden yellow, spotted with reddish brown, column white, with 2 purple spots on both apical sides, anther cap pale yellow; pedicel and ovary yellowish green, 1.5-2 cm, stout. Dorsal sepal obovate-oblong, 2.5-3 × ca. 1 cm, obtuse; lateral sepals subelliptic-rhombic, ca. as large as dorsal sepal, abaxially thickened and swollen toward apical midvein. Petals obovate-oblanceolate, smaller than dorsal sepal, obtuse; lip 1.6-1.9 cm, 3-lobed; lateral lobes subobovate, ca. 5 × 3 mm, obtuse; mid-lobe spreading, slightly laterally flattened, long and narrow, ca. 1.3 cm, adaxially with a central longitudinal keel thickened and triangular in basal half, crescent-shaped in apical half. Column ca. 4 mm, stout. Fl. Mar-Apr. |
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