细花虾脊兰（中国高等植物图鉴）
Calanthe mannii Hook. f., Fl. Brit. Ind. 5: 850. 1890, et in Hook, Icon. Pl. Ser. 4, 2: t. 2113. 1892; King et Pantl. in Ann. Bot. Gard. Calcutta 8: 167. Pl. 225. 1898; Mitra, Fl. Pl. East. Ind. 1: 327. 1958; Tuyama in H. Hara, Fl. East. Himal. 2: 180. 1971, et in Ohashi, Fl. East. Himal. 3: 317. 1975; H. Hara et al., Enum. Flow. Pl. Nepal 1: 34. 1978;中国兰花全书138. 1998.——Calanthe pusilla Finet in Bull. Soc. Bot. France 46: 436. t. 10 (B. 16-28). 1899. ——Calanthe brachychila Gagnep. in Bull. Soc. Bot. France. 79: 162. 1932; Averyanov, Vasc. Pl. Syn. Vietnam. Fl. 1: 45. 1990, et Iden. Guide Vietnam. Orch. 104. 1994.
Forests; 1300-2400 m. E Guangdong, NE Guangxi, SW Guizhou, SW Hubei, N Jiangxi, Sichuan, S and SE Xizang, NE Yunnan [Bhutan, India, Myanmar, Nepal, Vietnam]. The sepals, petal shapes and fine structures of the lips of this species often vary ; there are 8 pollen clusters, which are usually equal in size, but the pollen clusters from the specimens from Ebian, Sichuan are obviously unequal. The pollen masses of the specimens collected from Tibet are rarely intact, mostly fused into a loose mass. According to some scholars reported that this species is self-pollination, pollen mass easily dissolved by the stigma and absorption. These variations need to be further studied in the future. |
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Plants 30-45 cm tall. Rhizome inconspicuous. Pseudobulbs conic, ca. 1 cm in diam., with 2 or 3 sheaths.Leaves 3-5, not well developed at anthesis, not deciduous; blade oblanceolate or oblong, 18-35 × 3-4.5 cm, plicate, abaxially puberulent, base subsessile or attenuate into a petiole-like stalk, apex acute; petiole-like base 5-10 cm, usually forming a pseudostem 5-7 cm. | ||
Scape arising from leaf axil, erect, to 51 cm, densely puberulent; rachis 4-10 cm, 10- or more flowered; floral bracts persistent, lanceolate, 2-4 mm, glabrous. Flowers small, dark brown, with golden yellow lip; pedicel and ovary 5-7 mm, densely puberulent. Sepals similar, ovate-lanceolate or oblong, concave, 7-9 × 2.5-4.5 mm, abaxially densely puberulent, 3-5-veined, apex acute; lateral sepals ± oblique. Petals obovate-lanceolate or oblong, 6-7 × 1.2-2 mm, glabrous, 1-3-veined, apex acute; lip adnate to entire length of column wings, 3-4.5 × 2.5-3 mm, 3-lobed; lateral lobes ovate, oblique, 1.5-2 × 1-1.5 mm, apex obtuse-rounded; mid-lobe transversely oblong or nearly reniform, 1.5-2 × 2.5-3 mm, margin slightly undulate, apex emarginate and mucronate in sinus; disk with 3 lamellae or ridges; lamellae extending from base of lip to apex of mid-lobe, expanding to semilunate swellings on mid-lobe; spur straight, 1-3 × ca. 1 mm, outside puberulent. Column white, ca. 3 mm, dilated at apex, ventrally puberulent; rostellum small, 2-lobed; pollinia narrowly ovoid, subequal in size, ca. 0.8 mm; viscidium suborbicular, small. Fl. May. 2n = 40.
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