伞花卷瓣兰（台湾兰科植物彩色图鉴）
伞形卷瓣兰（台湾兰科植物）
Bulbophyllum umbellatum Lindl., Gen. Sp. Orch. Pl.: 56. 1830; Seidenf. in Dansk Bot. Ark. 29 (1): 178, fig. 90. 1973; 台湾兰科植物 1: 66-67 (图). 1975; 台湾兰科植物彩色图鉴 1: 427. 1977; 台湾植物志 5: 902. 1978; H. Hara et al., Enum. Flow. Pl. Nepal 1: 34. 1978; Seidenf. in Opera Bot. 114: 291. 1992; Averyanov, Iden. Guide Vietnam. Orch.: 270. 1994; Z. H. Tsi et S. C. Chen in Acta Phytotax. Sin. 33 (3): 290. 1995; 台湾兰科植物彩色图志 1: 1569 157. 彩色图版 35. 1996; Z. H. Tsi, S. C. Chen et K. Mori, Wild Orch. China: 94, pl.144. 1997. ——B. tibeticum Rolfe in Not. Bot. Gard. Edinb. 8: 21, t. 9. 1913; Schltr. in Fedde Repert. Sp. Nov. Beih 4: 250. 1919. ——B. saruwatarii Hayata, Icon. Pl. Formos. 6: 72. 1916.
Tree trunks in forests; 1000-2200 m. SW Guizhou, SW Sichuan, Taiwan, SE Xizang, S and W Yunnan [Bhutan, NE India, Myanmar, Nepal, Thailand, Vietnam]. |
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Rhizome creeping and rooting, 3-4 mm in diam. Pseudobulbs often 1-2 cm apart on rhizome, ovoid or ovoid-conic, 1.3-3.5 cm, 1-2 cm in diam., with a terminal leaf. |
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Petiole 1-2 cm; leaf blade oblong, 8-19 × 1.3-2.8 cm, leathery, apex obtuse and emarginate. Scape from base of pseudobulb, erect, 8-12 cm; umbel often 2-4-flowered; peduncle 1.5-2 mm in diam., with 2 tubular sheaths ca. 1 cm; floral bracts lanceolate, ca. 9 mm, concave. Pedicel and ovary ca. 2 cm. Flowers dark greenish yellow or dark brown with purplish apex except whitish lip. Dorsal sepal ovate, concave, ca. 9 × 5 mm, apex acute; lateral sepals falcate-lanceolate, ca. 15 × 5 mm, base adnate to column foot, twisted near base, their lower edges of basal part connate, apex obtuse. Petals ovate, ca. 7 × 5 mm, entire, obtuse-rounded; lip recurved, ligulate, ca. 5 mm, fleshy, base subcordate, apex obtuse. Column ca. 2 mm, stout, with deltoid, rounded wings along lower margins; foot ca. 5 mm, with free part ca. 1.5 mm; stelidia deltoid, ca. 1 mm; anther cap subglobose. Fl. Apr-Jun. 2n = 38. |
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