短梗山兰（中国兰花全书）
Oreorchis erythrochrysea Hand. -Mazz, in Anzeig. Acad. Wiss. Wein. Math.-Naturw. Kl. 62: 252. 1925, et Symb. Sinic. 7: 1354. 1936; S. Y. Hu in Quart. J. Taiwan Mus. 27 (3, 4): 452. 1974; N. Pearce et Cribb in Edinb. J. Bot. 54 (3): 301. fig. 5. 1997. ——Kitigorchis erythrochrysea (Hand. -Mazz.) F. Maekawa, Wild Orch. Jap. Col. 469. 1971. ——Oreorchis foliosa auct. non (Lindl.) Lindl.: 中国高等植物图鉴5: 742.图8134.1976;西藏植物志5: 835.1987;横断山区维管植物2: 2597. 1994.
Forests, thickets, grassy alpine slopes; 2200-3700 m. SW Sichuan, SE Xizang, NW and SW Yunnan. |
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Plants 16-35 cm tall. Pseudobulbs broadly ovoid to suboblong, 0.8-2 × 0.7-1.3 cm, 2- or 3-noded, sometimes persisting and forming a chain of pseudobulbs connected by a short rhizome. Leaf solitary, dark green with longitudinal silvery stripes adaxially, narrowly elliptic to narrowly oblong-lanceolate, plicate, 7-14 × 1-2.3 cm, tapering at base into a distinct petiole-like stalk 2-4.5 cm, apex acuminate or acute. |
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Inflorescence 12-35 cm, with 2 or 3 tubular sheaths below middle; rachis 3-11 cm, laxly to subdensely 8-25-flowered; floral bracts ovate-lanceolate, ca. 2 mm. Flowers yellow or greenish yellow, lip cream-colored and with purple or chestnut spots; pedicel and ovary 3-5 mm. Sepals narrowly oblong, 6-8 × 1.5-2 mm, apex obtuse or acute; lateral sepals slightly smaller than dorsal sepal, often slightly oblique. Petals narrowly oblong-spatulate, slightly falcate, 5.5-6.5 × ca. 1.5 mm, apex obtuse; lip suboblong-obovate, ca. 5 × 3 mm, shortly clawed at base, 3-lobed below middle; lateral lobes subovate to sublinear, 0.8-1 × ca. 0.7 mm, apex acute; mid-lobe subsquare or broadly elliptic-obovate, 2.5-3 × ca. 3 mm, margin slightly undulate, apex rounded and slightly emarginate; disk with a pair of short lamellae between bases of lateral lobes; lamellae less than 1 mm. Column slightly arcuate, ca. 3 mm, relatively thick. Fl. May-Jul. |
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