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Taiwan Gramineae | Family List | Poaceae

Perotis Aiton, Hort. Kew. }. 1: 85. 1789.

茅根草屬

Perotis rara

Credit: CC Hsu, 1975 Taiwan Grasses

Perennials; flowering culms ascending, branched from base; the vegetative culm long creeping. Leaves short, rather broad. Inflorescence a slender spike-like raceme. Spikelets placed on all sides of rachis, solitary or often more or less in groups, falling off entirely from a very short pedicel, narrow, 1-flowered, bisexual; glumes about equal, lanceolate, strongly convex, 1 nerved, with long slender awn; lemma much smaller; palea small; lodicules 2; stamens 3, the anthers small; styles very short, the stigmas poorly developed. Caryopsis narrow, much longer than lemma and palea, but shorter than glumes.

About 10 species distributed in tropical Africa, southern India, Ceylon, eastern Asia and extending to Australia.

Two species are found on the sand dunes of Taiwan.


KEY TO THE SPECIES

1 Spikelets less than 2 mm long; awn about 1 cm long   Perotis indica
+ Spikelets more than 3 mm long; awn 2 cm long.   Perotis rara

Lower Taxa


 

Related Objects  

Flora of China  
  • Perotis.pdf
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