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FOC | Family List | FOC Vol. 25 | Orchidaceae

56. Pogonia Jussieu, Gen. Pl. 65. 1789.

朱兰属 zhu lan shu

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

Herbs, terrestrial. Rhizome ascending, cylindric, slender; roots fascicled, elongate, fibrous, slightly fleshy. Stem erect, slender, 1-leaved. Leaf elliptic to oblong-lanceolate, herbaceous to slightly fleshy, sheathing at base. Inflorescence terminal, slender, usually with a solitary flower, rarely 2- or 3-flowered; floral bract persistent, foliaceous. Flower resupinate, showy. Sepals free, similar, spreading. Petals free, usually deflexed over column, slightly wider and shorter than sepals; lip oblong-obovate, entire to shallowly 3-lobed above middle, not spurred, margin fimbriate; disk densely papillose. Column slender, dilated at apex; clinandrium erose at margin; anther terminal, incumbent; pollinia 2, granular-farinaceous, without caudicles or viscidia; stigma surface large; rostellum short, broad, protruding above stigma. Capsule erect.

Four species: three species in E Asia and one in North America; three species (one endemic) in China.

1 Leaf elliptic, 1-3(-4.5) cm; floral bract positioned up to 2.5 cm above leaf, 5-17 mm; flower suberect.   3 P. yunnanensis
+ Leaf oblong or oblong-lanceolate, 3-6 cm; floral bract positioned 3-8 cm above leaf, 15-30 mm; flower spreading   (2)
2 (1) Flowers pale pinkish purple to purple; sepals 15-22 mm.   1 P. japonica
+ Flowers white; sepals 12-13(-15) mm.   2 P. minor

Lower Taxa


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