小花阔蕊兰（中国高等植物图鉴）
Peristylus affinis (D. Don) Seidenf. in Dansk Bot. Ark. 31(3): 48, fig. 23. 1977; K. Y. Lang in Acta Phytotax. Sin. 25(6): 450. 1987;横断山区维管植物2: 2540. 1994. ——Habenaria affinis D. Don, Prodr. Fl. Nep. 25. 1825. ——Peristylus goodyeroides "floribus minoribus" Lindl. , Gen. Sp. Orch. Pl. 300. 1835. ——Peristylus sampsoni Hance in J. Bot. 6: 37. 1868; 中国高等植物图鉴5: 633, 图8096. 1976. ——Habenaria Sampsoni(Hance)Hance, 1. c. 7: 163. 1869. ——Habenaria cavaleriei Schltr. in Fedde Repert. Sp. Nov. Beih. 4: 47. 1919. ——Habenaria goodyeroides var. affinis King et Pantl. in Ann. Bot. Gard. Calcutta 8: 327, t. 430. bis 1898.——Peristylus goodyeroides var. affinis(King et Pantl. )Cooke, Fl. Pers. Bombay 2: 712. 1908.
Evergreen broad-leaved forests, open scrub along valleys, roadsides, grassy slopes; 400-3000 m. Guangdong, Guangxi, Guizhou, Hubei, Hunan, Jiangxi, Sichuan, Yunnan [NE India, Laos, Myanmar, Nepal, Thailand]. |
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Plants slender, 21-54 cm tall. Tubers oblong-ellipsoid, 1-2 × 0.4-1 cm. Stem with 2-4 tubular sheaths at base, 3-5-leaved. |
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Leaves clustered to somewhat spaced along stem, elliptic to ovate-lanceolate, 2.5-9 × 1-3.5 cm, apex acute. |
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Inflorescence 14-25 cm; peduncle cylindric, slender; sterile bracts 1 or 2, lanceolate, ca. 15 mm; rachis 8-15 cm, subdensely several to many flowered; floral bracts ovate-lanceolate, 8-10 mm, ca. as long as to slightly exceeding ovary, apex acuminate. Flowers erect; sepals olive to brownish green, petals and lip creamy white; ovary 8-10 mm including pedicel. Dorsal sepal erect, oblong, slightly concave, ca. 3 × 1.5-1.8 mm, 1-veined, apex obtuse; lateral sepals spreading, oblong, ca. 3 × 1.2 mm, 1-veined, apex obtuse. Petals forming a loose hood with dorsal sepal, ovate, oblique, ca. 2.5 × 2 mm, 1-veined, apex obtuse; lip spreading, oblong-obovate, 2.5-3 × ca. 1.8 mm, ecallose, papillose near mouth of spur, base concave-saccate, 3-lobed near middle; lateral lobes diverging at an acute angle from axis of lip, oblong, to ca. 1 mm, apex obtuse; mid-lobe oblong, ca. 1.2 mm, broader than lateral lobes, apex obtuse; spur pendulous, saccate, 0.8-1.2 mm, apex rounded. Column ca. 0.8 mm; viscidia subellipsoid; rostellum small, with short arms on both sides. Fl. Jun-Sep. |
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