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Published In: Nova Genera et Species Plantarum seu Prodromus 1, 25. 1788. (Prodr.) Name publication detailView in BotanicusView in Biodiversity Heritage Library
 

Project Name Data (Last Modified On 6/2/2011)
Acceptance : Accepted
Project Data     (Last Modified On 6/3/2011)
General/Distribution: A genus of about 40 species in tropical and warm temperate regions of both hemispheres; represented in Pakistan by 5 species.

 

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Tufted, rhizomatous or stoloniferous perennials or annuals. Leaf-blades linear, flat or folded, acute to acuminate or obtuse; ligule membranous, short, ciliolate; sheaths rounded or keeled and flabellate. Inflorescence of few to many slender, typically digitate spikes. Spikelets 24(-6)-flowered, shortly pedicelled or subsessile, alternate in 2 rows on a tough rhachis; glumes unequal, membranous, usually lanceolate in side-view, 1-nerved, acute, acuminate or with an awn-point, usually persistent; lowest floret bisexual; lemma cartilaginous or coriaceous, mostly laterally compressed and keeled, usually ciliate on the margins and keel, entire or 2-lobed at the apex, with a subapical awn; callus rounded or pungent, ciliate; 2nd-6th florets sterile, sometimes male, rarely bisexual, embraced by or projecting from the side of the lowest floret; lemmas more or less reduced or vestigial, awned or awnless; paleas usually absent. Caryopsis ellipsoid to linear, usually trigonous, occasionally dorsally compressed.
 

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1 Spikes shorter, straight and more or less ascending, not exceeding 13 cm in length; spikelets more or less ovate, rarely exceeding 3.5 mm in length, laterally compressed (2)
+ Spikes long, flexuous and drooping, up to 25 cm long; spikelets narrowly lanceolate, up to 6.5 mm long, dorsally compressed Chloris dolichostachya
2 (1) Lowest lemma without a crown of spreading hairs at the apex, but long ciliate on the margins (3)
+ Lowest lemma with a crown of spreading hairs up to 3 mm long, margins shortly ciliate Chloris virgata
3 (2) Second lemma oblong or lanceolate, ciliate on the margins (sometimes obscurely so), the floret often perfect (4)
+ Second lemma a small clavate glabrous awned scale; third lemma (and fourth when present) similar but smaller Chloris barbata
4 (3) Second lemma lanceolate, awned; third lemma oblong, awnless; fourth lemma, if present, a minute awnless clavate scale Chloris gayana
+ Second lemma oblong, awned; third to fifth lemmas clavate and awned or fifth lemma reduced to an awn Chloris quinquesetica
 
 
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