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FOC | Family List | FOC Vol. 25 | Orchidaceae | Zeuxine

4. Zeuxine goodyeroides Lindley, Gen. Sp. Orchid. Pl. 486. 1840.

白肋线柱兰 bai lei xian zhu lan

Monochilus galeatus Lindley; M. goodyeroides (Lindley) Lindley.

Plants 17-30 cm tall, slender to somewhat stout. Rhizome elongate. Stem erect, 4-6-leaved. 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. 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.

Forests, valleys, crevices on limestone; 1200-2500 m. W Guangxi, SE Yunnan [Bhutan, NE India, Myanmar, Nepal, Vietnam].


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