落叶石豆兰（植物分类学报）
Bulbophyllum hirtum (J. E. Smith) Lindl., Gen. Sp. Orch. Pl.: 51. 1830; Rchb. f. in Walp. Ann. Bot. Syst. 6: 255. 1861; Hook. f., Fl. Brit. Ind. 5: 762. 1890: King et Pantl. in Ann. Bot. Gard. Calcutta 8: 84, pl. 117. 1898; H. Hara et al. Enum. Flow. Pl. Nepal 1: 33. 1978: Seidenf. in Dansk Bot. Ark. 33 (3): 203, fig. 147. 1979; Averyanov, Vasc. Pl. Syn. Vietnam. Orch.: 282. 1994. ——Stelis hirta J. E. Smith in Rees Cyclop. 34: no. 11. 1816.
Tree trunks in evergreen broad-leaved forests; ca. 1800 m. S Yunnan [NE India, Myanmar, Nepal, Thailand, Vietnam]. |
|
Rhizome creeping and rooting, 3-4 mm in diam. Pseudobulbs 5-10 mm apart from each other, ovoid-conic, 1.5-3 cm, ca. 1 cm in diam., with 2 leaves at apex. |
|
Leaves deciduous at anthesis; petiole ca. 5 mm; blade elliptic or oblong, ca. 12 × 2.5-3 cm, leathery, apex obtuse. |
|
Scape arising from base of leafless pseudobulb, to 15 cm; raceme pendulous, ca. 5 cm, with pubescent rachis, densely with many small flowers; peduncle ca. 3 mm in diam., with 2 or 3 tubular sheaths; floral bracts ovate, ca. 0.7 mm, apex acute, ciliate. Pedicel and ovary pubescent, ca. 1 mm. Flowers greenish white. Sepals free; dorsal sepal lanceolate, ca. 4.5 × 2 mm, abaxially densely pubescent, apex acute and slightly curved; lateral sepals slightly larger than dorsal sepal, obliquely ovate-lanceolate, abaxially densely pubescent, base adnate to column foot, apex acute. Petals oblanceolate, ca. 2 × 1.5 mm, membranous, margins fimbriate-ciliate; lip recurved, ± conduplicate, narrowly oblong, fleshy, ciliate, base attached to end of column foot by an immobile joint, apex retuse. Column ca. 1.5 mm; stelidia subulate, nearly as high as anther, ca. 0.5 mm; foot ca. 2.7 mm, with free part ca. 0.7 mm; anther cap papillate. Fl. Jul. |
|
| |
| |
| |
|
