白肋线柱兰（新拟）
Zeuxine goodyeroides Lindl. , Gen. Sp. Orch. Pl. 486. 1840; Hook. f. , Fl. Brit. Ind. 6: 107. 1890, et in Hook. , Icon. Pl. 22: t. 2172. 1893; King et Pantl. in Ann. Bot. Gard. Calcutta 8: 287, t. 382. 1898; Tuyama in H. Hara, Fl. E. Himal. 2: 195. 1971; H. Hara et al. , Enum. Flow. Pl. Nepal 1: 58. 1978. ——Monochilus goodyeroides (Lindl. )Lindl. in J. Linn. Soc. Bot. 1: 187. 1857.
Forests, valleys, crevices on limestone; 1200-2500 m. W Guangxi, SE Yunnan [Bhutan, NE India, Myanmar, Nepal, Vietnam]. |
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Plants 17-30 cm tall, slender to somewhat stout. Rhizome elongate. Stem erect, 4-6-leaved. |
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Leaves cauline, adaxially green, with a white line along midvein, ovate to oblong-ovate, 3-5.5 × 1.8-2.5 cm, base obtuse, apex acute; petiole-like base 1-2 cm including tubular sheath. |
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Inflorescence 9-18 cm, with 1 or 2 widely spaced sterile bracts, puberulent; rachis 2.5-5 cm, with several to more than 10 subdensely arranged flowers; floral bracts pink, ovate, nearly as long as ovary, abaxially glabrous, apex acuminate. Flowers resupinate, white or pink, small; ovary and pedicel fusiform, 9-10 mm, glabrous. Sepals glabrous, 1-veined; dorsal sepal ovate, concave, ca. 5 × 2.5 mm, apex acute; lateral sepals spreading, narrowly oblong-lanceolate, ca. 4.5 × 1-1.4 mm. Petals white, falcate, ca. 4.5 × 1.5 mm, 1-veined, apex subacute; lip white, cymbiform, ca. 4.5 mm, obscurely 3-partite; hypochile dilated, saccate, ca. 2.5 × 2 mm, containing 2 subulate, hooked calli; mesochile short, ca. 0.5 mm, glabrous, margin involute; epichile transversely dilated but narrower than hypochile, suborbicular or subreniform, ca. 1 × 1.8 mm, membranous, entire to shallowly 2-lobed at apex. Column 2-2.4 mm; wings low, transversely oblong; rostellum arms ca. 0.8 mm. Fl. Sep-Oct. |
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