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

1. Acampe rigida (Buchanan-Hamilton ex Smith) P. F. Hunt, Kew Bull. 24: 98. 1970.

多花脆兰 duo hua cui lan

Aerides rigida Buchanan-Hamilton ex Smith in Rees, Cycl. 39: Aerides no. 12. 1819; Acampe intermedia H. G. Reichenbach; A. longifolia (Lindley) Lindley; A. multiflora (Lindley) Lindley; A. taiwaniana S. S. Ying; Gastrochilus longifolius (Lindley) Kuntze; Saccolabium longifolium (Lindley) J. D. Hooker; Vanda longifolia Lindley; V. multiflora Lindley.

Stems to 1 m, stout, 8-20 mm in diam., unbranched, internodes 2-3 cm, with many distichous leaves. Leaf blade ascending, lorate, 17-40 × 3.5-5 cm, rather fleshy, amplexicaul-sheathing at base, apex obtuse and unequally bilobed. Inflorescence axillary or opposite to leaf, usually from upper part of stem, suberect, 7-30 cm, unbranched or sometimes shortly branched, many flowered; peduncle 5-11 cm, 5-8 mm in diam., with 2 or 3 triangular sheaths; floral bracts broadly triangular, 3-5 mm, fleshy, obtuse. Flowers somewhat fragrant, not opening widely, yellow with purplish brown transverse stripes, lip white, with purplish brown longitudinal stripes above; pedicel and ovary yellowish green, ca. 1 cm, fleshy. Sepals similar, oblong, 10-12 × 5-6 mm, obtuse. Petals narrowly obovate, 8-9 × 3-4 mm, obtuse; lip thickly fleshy, 3-lobed; lateral lobes subquadrate; mid-lobe suberect, ovate-ligulate, 5-6 mm, margin slightly undulate and irregularly incised, apex obtuse, slightly recurved; spur conic, ca. 3 mm, inside densely hairy, apex obtuse. Column ca. 2.5 mm, stout; anther cap subspherical; caudicle oblanceolate, ca. 1.2 mm; viscidium subovate. Capsule suberect, cylindric or narrowly fusiform, ca. 6 cm × 8-15 mm. Fl. Aug-Sep, fr. Oct-Nov. 2n = 38.

Epiphytic on tree trunks or lithophytic on rocks in forests; 300-1800 m. S Guangdong, SW Guangxi, S Guizhou, Hainan, Taiwan, E, SE, and SW Yunnan [Bhutan, Cambodia, NE India, Laos, Malaysia, Myanmar, Nepal, Sri Lanka, Thailand, Vietnam; Africa].


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