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

7. Peristylus bulleyi (Rolfe) K. Y. Lang, Acta Phytotax. Sin. 25: 448. 1987.

条叶阔蕊兰 tiao ye kuo rui lan

Habenaria bulleyi Rolfe, Notes Roy. Bot. Gard. Edinburgh 8: 25. 1913; H. beesiana W. W. Smith; Herminium bulleyi (Rolfe) Tang & F. T. Wang; Peristylus gracillimus (J. D. Hooker) Kraenzlin f. lankongensis Finet; Platanthera praeustipetala Kraenzlin.

Plants slender, 15-35 cm tall. Tubers oblong, 1-2 × ca. 0.5 cm. Stem with 2 tubular sheaths at base, 2-4-leaved. Leaves somewhat spaced to clustered midway along stem, linear, 4-10 × 0.2-0.6 cm, apex acute or acuminate. Inflorescence 13-30 cm; peduncle cylindric to slightly ridged, slender; sterile bracts 1-3, linear-lanceolate, 5-7 mm; rachis 5-15 cm, sublaxly several to subdensely many flowered; floral bracts ovate-lanceolate, 4-6 mm, shorter than ovary, apex acuminate. Flowers erect, yellowish green; ovary 5-8 mm including pedicel. Dorsal sepal erect, ovate-oblong, concave, 2-3.5 × 0.8-1.2 mm, 1-veined, apex obtuse; lateral sepals spreading to reflexed, oblong, slightly oblique, 3-4 × 0.8-1.2 mm, 1-veined, apex obtuse. Petals erect-spreading to reflexed, narrowly ovate-lanceolate, ca. 3.5 × 1(-1.5) mm, slightly fleshy above middle, 3-veined, apex acute; lip narrowly oblong, 3-4.5 × ca. 0.4 mm, ecallose, 3-lobed near middle; lateral lobes diverging at an acute angle from axis of lip, narrowly oblong, 0.8-2.5 mm; mid-lobe linear-oblong, 2-3 mm, slightly longer and wider than lateral lobes, apex obtuse; spur pendulous, curved forward, cylindric, 4-6 mm, almost as long as ovary, apex obtuse. Column ca. 0.8 mm; viscidia ellipsoid. Fl. Jul-Aug.

Pinus forests, grassy slopes; 2500-3300 m. SW and W Sichuan, N and NW Yunnan.


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