毛柱隔距兰
Cleisostoma simondii (Gagnep.) Seidenf. in Dansk Bot. Ark. 29 (3): 66. 1975 (excl. spec. Hainan. et Hongkong.); Z. H. Tsi in Bull. Bot. Res. 3 (4): 83. 1983; Averyanov, Vasc. Pl. Syn. Vietnam. Fl. 1: 53. 1990; Seidenf. in Opera Bot. 114: 359. 1992; Averyanov, Iden. Guide Vietnam. Orch.: 384. 1994; Z. H. Tsi, S. C. Chen et K. Mori, Wild Orch. China: 96, pl. 159. 1997. ——Vanda teretifolia Lindl., Coll. Bot. t. 6. 1821. ——Sarcanthus teretifolius (Lindl.) Lindl., Gen. Sp. Orch. Pl.: 234. 1833; Hook. in Bot. Mag. 64: t. 3571. 1837; Bentham, Fl. Hongkong: 358. 1855; Schltr. in Fedde Repert. Sp. Nov. Beih. 4: 294. 1919. ——Vanda simondii Gagnep. in Bull. Mus. Hist. Nat. (Paris) 2 ser., 22 (5): 628. 1950.——Cleisostoma teres Garay in Bot. Mus. Leafl. Harvard Univ. 23 (4): 175. 1972.
a. 毛柱隔距兰（原变种）var. simondii
Epiphytic on tree trunks or lithophytic on rocks in forests or in open forests along rivers; 500-1200 m. Fujian, S Guangdong, Hainan, S Yunnan [NE India, Laos, Thailand, Vietnam]. Base name of this species Although Lindley 's species ( Vanda teretifolia ) appeared earlier, the genus already had an addition in 1864 with the same name as Lindley 's species ( Cleisostoma teretifolium Teijsm et Binnend ), so only Gagnepain 's species ( Vanda simondii ) can be used as the base name. |
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Plants often ascending. Stems to 50 cm, rather slender, ca. 4 mm in diam., usually branched, many leaved, internodes 1-2.5 cm. |
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Leaves terete, 7-11 cm × ca. 3 mm, slender, fleshy, obtuse. |
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Inflorescence lateral, ascending, longer than leaves, unbranched or sometimes shortly branched, many flowered; floral bracts ovate, ca. 2 mm, membranous. Flowers yellowish green with purplish red veins, subfleshy; lip mid-lobe purple-red or yellowish white; pedicel and ovary 7-10 mm. Sepals oblong, 6-7 × 3-4 mm, rounded; lateral sepals slightly oblique, basally with 1/2 width adnate to column foot. Petals similar to sepals and smaller, obtuse; lip lateral lobes erect, deltoid; mid-lobe ovate-triangular, thickly fleshy, apex acute, base with a central triangular projection; spur subglobose, laterally compressed, ca. 4 mm in diam., apex concave, interior distinctly septate, with a back wall callus; callus either 3-lobed and T-shaped or subquadrate; mid-lobe subcuneate, centrally slightly concave, base shallowly bilobed and densely papillate-hairy. Column ca. 3 mm, densely white hairy at base in front; rostellum broadly triangular; anther cap slightly elongate and subtruncate at apex; stipe nearly suborbicular, base folded; viscidium saddlelike, large. Fl. Sep. |
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b. 广东隔距兰（变种）
var. guangdongense Z. H. Tsi in Bull. Bot. Res. 3 (4): 84, fig. 1 (5-6). 1983. ——C. teres auct. non Garay: 中国高等植物图鉴 5: 761. 图8352 (exct. spec. Yunnan); 海南植物志 4: 262. 1977. (exct. syn.); S. Y. Hu, Gen. Orch. Hong Kong: 115. 1977. ——Sarcanthus teretifolius auct. non (Lindl.) Lindl.: S. Y. Hu in Quart. J. Taiwan Mus. 28 (1, 2): 156. 1975.
不同于原变种在于唇瓣中裂片浅黄白色，距内背壁上方的胼胝体为中央凹陷的四边形，其四个角呈短角状均向前伸。
产福建（光泽、南靖、平和、诏安）、广东南部（罗浮山）、香港、海南（三亚市、陵水、万宁）。常生于海拔500-600米的常绿阔叶林中树干上或林下岩石上。模式标本产于海南。