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

1. Nephelaphyllum tenuiflorum Blume, Bijdr. 373. 1825.

云叶兰 yun ye lan

Nephelaphyllum cristatum Rolfe; N. cristigerum Averyanov, nom. illeg. superfl.; Tainia cristata (Rolfe) Gagnepain; T. tenuiflora (Blume) Gagnepain.

Plants ± prostrate. Rhizome 2-5 mm in diam., fleshy, with membranous sheaths ca. 1 cm. Pseudobulbs narrowly cylindric, 1-2 cm × 1.5-2 mm, petiole-like, fleshy. Leaf sessile, ovate-cordate, 2.2-4(-7) × 1.3-3.5 cm, slightly fleshy, base subcordate, apex acute. Inflorescence erect, 9-20 cm, laxly 1-3-flowered; peduncle somewhat thickened at base; floral bracts lanceolate, 4-6 mm, membranous. Flowers widely opening, green, with purple stripes; pedicel and ovary ca. 1 cm. Sepals similar, narrowly obovate-lanceolate, ca. 10 × 2.5 mm, 1-veined, shortly acuminate. Petals spatulate, ca. as long as but wider than sepals, 3-veined, subacute; lip subelliptic, slightly concave, ca. 10 × 6-7 mm, base shortly spurred, inconspicuously 3-lobed; lateral lobes narrow; mid-lobe ± suborbicular, margin crisped, apex emarginate, base with a cluster of fimbriate laciniae ± extending to disk; disk with dense long hairs; spur ca. 3 mm, apex slightly concave. Column ca. 6 mm. Fl. Jun.

Wooded slopes; ca. 900 m. C and S Hainan, Hong Kong [Indonesia, Malaysia, Thailand, Vietnam].


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