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72. Epipogium J. G. Gmelin ex Borkhausen, Tent. Disp. Pl. German. 139. 1792.

虎舌兰属 hu she lan shu

Authors: Xinqi Chen, Stephan W. Gale & Phillip J. Cribb

Ceratopsis Lindley; Galera Blume; Podanthera Wight.

Herbs, terrestrial, holomycotrophic. Rhizome tuberous or coralloid, fleshy. Stem erect, fleshy, with short, scalelike sheathing bracts at nodes, white or pale yellowish white, leafless, glabrous. Inflorescence terminal, racemose, several to many flowered, ephemeral; floral bracts ovate-lanceolate, membranous. Flowers usually pendulous, resupinate or not, yellowish white with violet or reddish brown markings; pedicel slender, often elongate; ovary dilated. Sepals and petals similar, connivent or spreading, free, lanceolate; lip broadly ovate when flattened, fleshy, concave, spurred at base, entire or 3-lobed; disk papillate and with longitudinal ridges or lamellae; spur broad, shortly saccate to elongate, straight or slightly curved, apex obtuse. Column short, fleshy, lacking a column foot; anther incumbent or suberect; pollinia 2, each deeply cleft, clavate, loosely granular-farinaceous, each with a slender caudicle and attached to a viscidium; stigma placed at base of column; rostellum broad, sometimes reduced and obscure, usually distant from stigma. Capsule ellipsoid or ovoid, usually maturing rapidly.

Three species: tropical Africa, temperate and tropical Asia, NE Australia, Europe, SW Pacific islands; three species in China.

The genus name is based on the pre-Linnaean name "Epipogum" (J. G. Gmelin, Fl. Sibir. 1: 11. 1747).

1 Rhizome coralloid; flowers not resupinate; lip distinctly 3-lobed near base.   3 E. aphyllum
+ Rhizome tuberous; flowers resupinate; lip entire or obscurely 3-lobed   (2)
2 (1) Peduncle and flowers white with faint purple spots on lip; sepals and petals linear-lanceolate, 2-3 mm wide; spur projecting backward, nearly parallel to ovary.   1 E. roseum
+ Peduncle and flowers brown with pink to maroon spots and striations on sepals, petals, and lip; sepals and petals ovate-lanceolate, 3-6 mm wide; spur pendulous, curving forward away from ovary.   2 E. japonicum

Lower Taxa


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