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

1. Corallorhiza trifida Châtelain, Spec. Inaug. Corallorhiza. 8. 1760.

珊瑚兰 shan hu lan

Ophrys corallorhiza Linnaeus, Sp. Pl. 2: 945. 1753; Corallorhiza innata R. Brown.

Plants slender, 10-28 cm tall. Rhizome beige to brown, extensively branching. Inflorescence reddish brown, with 3-5 sheaths; sheaths amplexicaul, reddish brown, tubular, 1-6 cm, membranous; rachis 1-3(-5) cm, laxly to densely 3-7-flowered; floral bracts ca. 1 mm. Flowers ascending, pale yellowish green to white; pedicel and ovary 3.5-5 mm. Dorsal sepal arching forward and forming a loose hood with petals, narrowly oblong-lanceolate to narrowly elliptic, 4-6 × 1-1.5 mm, 1-veined, apex obtuse or acute; lateral sepals similar to dorsal sepal, slightly oblique, 4-6 × 1-1.5 mm, connate at base and forming an inconspicuous mentum with base of column, 1-veined, apex obtuse or acute. Petals broadly lanceolate to oblanceolate, 3-5 × ca. 1.5 mm, 1-veined, apex obtuse or acute; lip broadly oblong, 2.5-3.5 × ca. 1.5 mm, obscurely 3-lobed toward base; lateral lobes erect, small; mid-lobe elliptic to oblong, 1-1.5 × ca. 0.8 mm, apex rounded and sometimes emarginate; disk with 2 thick longitudinal lamellae extending to base of mid-lobe. Column 2.5-3 mm, with small wings; stigma transversely oblong, broad. Capsule ellipsoid, 7-9 × ca. 5 mm. Fl. and fr. Jun-Aug. 2n = 38, 40, 42.

Forests, thickets; 2000-2700 m. Gansu, N Guizhou, Hebei, Jilin, Nei Mongol, Qinghai, Sichuan, Xinjiang [India, Japan, Kashmir, Korea, Nepal, Russia; Europe, North America].

The extensive extra-Chinese synonymy is not cited here.


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