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

1. Aeridostachya robusta (Blume) Brieger in Schlechter, Orchideen, ed. 3. 1A(11-12): 714. 1981.

气穗兰 qi sui lan

Dendrolirium robustum Blume, Bijdr. 347. 1825; Aeridostachya purpureocentra (J. J. Smith) Rauschert; Eria aeridostachya H. G. Reichenbach ex Lindley; E. borneensis Rolfe; E. brunea Ridley; E. kinabaluensis Rolfe; E. linearifolia Ridley; E. lorifolia Ridley; E. purpureocentra J. J. Smith; E. robusta (Blume) Lindley; E. sawadae Yamamoto; E. uchiyamae Tuyama; Pinalia aeridostachya (H. G. Reichenbach ex Lindley) Kuntze; P. robusta (Blume) Kuntze.

Pseudobulbs tufted, laterally compressed, cylindric, 3-7 × ca. 1.5 cm, stout, distally 2-4-leaved. Leaves ± distichous, erect, sessile, linear-oblanceolate, 30-40 × 2-3.5 cm, leathery, base attenuate, apex acute. Inflorescence subterminal, 17-18 cm, slender, upper part slightly recurved, with stellate hairs, densely many flowered; peduncle 12-13 cm, with a few sterile basal bracts; sterile bracts red, ovate, ca. 2 × 1 mm, densely stellate-pilose, acuminate; floral bracts inconspicuous. Flowers small, crowded, brownish; pedicel and ovary ca. 6 mm, densely stellate-pilose. Sepals with reddish hairs abaxially; dorsal sepal ovate-oblong, ca. 3 × 1.5 mm, often slightly thickened, base truncate, apex obtuse; lateral sepals obliquely ovate, ca. 2.5 × 3 mm, obtuse. Petals oblong, slightly oblique, ca. 3 × 1.5 mm, glabrous, base truncate, margin undulate, apex rounded; lip ± cymbiform, oblong in outline, ca. 4 × 1.5 mm, with 4 or 5 purple, branched veins, glabrous, base adnate to column foot, entire, margin conspicuously crenulate, apex recurved, bluntly rounded. Column erect, ca. 1 mm, base with a deep groove, foot ca. 3 mm. Fl. May.

Epiphytic on tree trunks in forests; ca. 1000 m. S Taiwan [Indonesia, Malaysia, New Guinea, Philippines, Thailand; Pacific islands (Fiji, New Caledonia, Samoa, Solomon Islands)].


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