玫瑰石斛（植物分类学报）
Dendrobium crepidatum Lindl. ex Paxt., Fl. Gard. 1: 63, fig. 45. 1850-1851; Hook. in Bot. Mag. 83: t. 4993 et 5011. 1857; Rchb. f. in Walp. Ann. Bot. Syst. 6: 285. 1861; Hook. f., Fl. Brit. Ind. 5: 740. 1890; King et Pantl. in Ann. Bot. Gard. Calcutta 8: 48, pl. 66. 1898; Kraenzl. in Engler, Pflanzenr. 45 (IV. 50, II. B. 21): 39. 1910; Hand. -Mazz, Symb. Sin. 7: 1352. 1936; S. Y. Hu in Qrart. J. Taiwan Mus. 26 (1, 2): 155. 1973; H. Hara et al., Enum. Flow. Pl. Nepal 1: 39. 1978; Z. H. Tsi in Acta Phytotax. Sin. 18 (4): 444. 1980; Seidenf. in Opera Bot. 83: 80, fig. 46. 1985; Averyanov, Vasc. Pl. Syn Vietnam. Fl. 1: 68. 1990; Seidenf., l. c. 114: 235. 1992; Averyanov, Iden. Guide Vietnam. Orch.: 193. 1994; Z. H. Tsi et S. C. Chen in Acta Phytotax. Sin. 33 (3): 291. 1995; Z. H. Tsi, S. C. Chen et K. Mori, Wild Orch. China: 71, pl. 80. 1997; 中国兰花全书: 160.图6-13 (1). 1998.
Epiphytic on tree trunks in open forests, lithophytic on rocks in mountain valleys; 1000-1800 m. SW Guizhou, S Yunnan [Bhutan, India, Laos, Myanmar, Nepal, Thailand, Vietnam].
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Stems pendulous, green, cylindric, usually 30-40 cm, stout, ca. 1 cm in diam., fleshy, base slightly contracted, unbranched, with many nodes, internodes 3-4 cm, with green and white-striped sheaths, purplish bronze when dry. |
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Leaves narrowly lanceolate, 5-10 × 1-1.25 cm, subleathery, base with clasping sheath, apex acuminate; leaf sheath membranous. |
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Inflorescence arising from old stems after leaves have fallen, very short, 1-4-flowered; peduncle ca. 3 mm; basal sheaths 3 or 4, scarious; floral bracts ovate, ca. 4 mm, apex acute. Pedicel and ovary pale purplish red, ca. 3.5 cm. Flowers spreading, thick, sometimes cleistogamous; sepals and petals white, pale purple above middle, waxy when dry, lip pale purplish red above middle, golden yellow below middle, column white, front with 2 purplish red stripes. Dorsal sepal subelliptic, ca. 21 × 10 mm, 5-veined, obtuse; lateral sepals ovate-oblong, nearly as large as dorsal sepal, 5-veined, midvein on abaxial surface ± keeled, base oblique, apex obtuse; mentum subglobose, small, ca. 5 mm. Petals broadly obovate, ca. 21 × 12 mm, 5-veined, rounded; lip orbicular or broadly obovate, length subequal to width, ca. 2 cm, both sides embracing column below middle, adaxially densely pubescent. Column ca. 3 mm; anther cap subconic, front margin denticulate, apex narrowed and arching forward.Flowering March-April.
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