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FOC | Family List | FOC Vol. 25 | Orchidaceae

138. Phreatia Lindley, Gen. Sp. Orchid. Pl. 63. 1830.

馥兰属 fu lan shu

Authors: Xinqi Chen & Jeffrey J. Wood

Plexaure Endlicher.

Herbs, epiphytic. Stems pseudobulbous or caulescent, former 1-3-leaved, latter with up to 12 leaves, very short or elongate. Leaves distichous or arranged in a fan, erect to spreading, terminal, sometimes fleshy, jointed on equitant sheaths, articulate. Inflorescences lateral or arising from base of pseudobulb, racemose, laxly to densely many flowered. Flowers resupinate, pale green or white, minute, opening widely or not, often self-pollinating. Sepals similar, free, sometimes connivent; lateral sepals often ± adnate to column foot forming a mentum. Petals often smaller than sepals; lip often with a basal claw attached to end of column foot, base concave or ± saccate, margin entire or obscurely 3-lobed. Column short, with a conspicuous foot; anther terminal, obtuse at apex; pollinia 8, in 2 groups of 4, waxy, attached by a narrow caudicle to a small viscidium.

About 190 species: from Sri Lanka and mainland Asia, through SE Asia, to Australia, New Guinea, and the Pacific islands, most species occurring in Indonesia and New Guinea; four species (two endemic) in China.

1 Stem elongate, not pseudobulbous, pendulous, 10-20 cm.   4 P. caulescens
+ Stem very short or pseudobulbous, less than 3 cm   (2)
2 (1) Stem very short, not pseudobulbous, enclosed in leaf sheaths; leaves 4-6(-10).   1 P. formosana
+ Stem pseudobulbous, ovoid to subglobose, ± naked; leaves 1-3   (3)
3 (2) Pseudobulbs subglobose or ovoid, taller than broad; lip minutely hairy.   2 P. morii
+ Pseudobulbs flattened globose, broader than tall; lip glabrous.   3 P. taiwaniana

Lower Taxa


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