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(Last Modified On 12/4/2012)
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(Last Modified On 12/4/2012)
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Genus
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POLYSTACHYA Hook.
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PlaceOfPublication
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Exot. Fl. 2: t. 103. 1825
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Reference
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Kranzlin in Fedde Rep. Sp. Nov. Beih. 39:1-136. 1926.
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Description
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Epiphytic or rarely terrestrial, caespitose, pseudobulbose (Panamanian species) herbs. Inflorescence a raceme or panicle. Dorsal sepal free. Lateral sepals larger than the dorsal, forming a mentum at their bases. Petals much smaller than the sepals, usually linear. Lip non-resupinate, nearly entire or usually 3-lobed; disc of the lip usually with a conspicuous callus and often covered with fragile, artic- ulated or farinaceous cells. Column short, with a prominent foot; pollinia 4, or 4 joined into 2.
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Note
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Kranzlin, in his monograph, lists 188 species of Polystachya, mostly African.
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Key
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a. Ovary and rachis of the inflorescence glabrous ..................................... 1. P. CEREA aa. Ovary and rachis of the inflorescence pubescent ..................................... 2. P. MASAYENSIS
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