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Alloteropsis C. Presl


Description from Flora of China

Annuals or perennials. Culms erect or decumbent. Leaf blades convolute, linear or lanceolate. Inflorescence composed of slender racemes, these digitate or in whorls on a short common axis, each raceme with a weakly unilateral, narrowly triquetrous rachis, spikelets in pairs or clusters. Spikelets ovate to elliptic, dorsally compressed, florets 2; glumes unequal, acute to briefly awned; lower glume 1/2 spikelet length, membranous, 3-veined; upper glume as long as spikelet, herbaceous, 5–7-veined, ciliate along margins; lower floret staminate, lemma herbaceous, glabrous; lower palea much shorter than the anthers, bifid; upper lemma cartilaginous, margins inrolled, shortly awned; upper palea acute, the flaps basally auriculate. Caryopsis ellipsoid. x = 9.

Alloteropsis is best distinguished from other panicoid genera by its awned spikelets and ciliate upper glume.

Five species: tropical and S Africa, India, SE Asia, Australia; two species in China.

(Authors: Chen Shouliang (陈守良); Sylvia M. Phillips)


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Flora of China  
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