大叶隔距兰（中国高等植物图鉴）
Cleisostoma racemiferum (Lindl.) Garay in Bot. Mus. Leafl. Harvard Univ. 23 (4): 173. 1972; Seidenf. in Dansk Bot. Ark. 29 (3): 16, fig. 4. 1975; 中国高等植物图鉴 5: 762. 图8353. 1976; H. Hara et al., Enum. Flow. Pl. Nepal 1: 36. 1978; Z. H. Tsi in Bull. Bot. Res. 3 (4): 73. 1983; Averyanov, Vasc. Pl. Syn. Vietnam. Fl. 1: 52. 1990; Seidenf. in Opera Bot. 114: 388. 1992; Averyanov, Iden. Guide Vietnam. Orch.: 378. 1994; Z. H. Tsi et S. C. Chen in Acta Phytotax. Sin. 33 (3): 290. 1995. ——Saccolabium racemiferum Lindl., Gen. Sp. Orch. Pl. : 224. 1833.——Sarcanthus pallidus Lindl. in Bot. Reg. 26 (Misc.): 78. 1840; S. Y. Hu in Quart. J. Taiwan Mus. 26 (1, 2): 155. 1975. ——S. racemiferum (Lindl.) Rchb. f. in Walp. Ann. Bot. Syst. 6: 891. 1863. ——S. yunnanensis Schltr. in Fedde Repert. Sp. Nov. Beih. 4: 77. 1919; S. Y. Hu. l. c. 26 (1, 2): 156. 1975.
Epiphytic on tree trunks in open forests; 600-1800 m. S and W Yunnan [Bhutan, India, Laos, Myanmar, Nepal, Thailand, Vietnam].
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Stems erect, 5-20 cm, stout, 2-2.5 cm in diam., branching. |
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Leaves distichous, flat, lorate, ca. 29 × 3-4 cm, obtuse and unequally bilobed. |
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Inflorescence axillary, longer than leaves, many branched, laxly many flowered; floral bracts ovate-lanceolate, small, 1-2 mm. Flowers: sepals and petals yellow with brownish red spots, lip white; pedicel and ovary ca. 4 mm. Dorsal sepal suboblong, concave, ca. 3.5 × 2.5 mm, obtuse; lateral sepals slightly obliquely oblong, ca. 3.5 × 3 mm, base adnate to column foot, apex rounded. Petals oblong, ca. 3 × 2 mm, obtuse; lip lateral lobes erect, deltoid; mid-lobe spreading, deltoid, obtuse, with a keel running down to spur linking to rudimentary septum; spur conic, 2-2.5 mm; back wall callus inside spur ovate-triangular, base with papillate hairs, slightly bilobed. Column ca. 2.5 mm, winged; rostellum triangular; stipe narrowly lorate, margin inflexed; viscidium suborbicular, small; anther cap beaked at apex. Fl. Jun.
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