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Project Name Data (Last Modified On 10/12/2012)

Flora Data (Last Modified On 10/12/2012)
PlaceOfPublication Prodr. Veg. Ind. Occ. 25. 1788.
Synonym Eustachys Desv. Nouv. Bull. Soc. Philom. (Paris) 2:188. 1810. Schultesia Spreng. PI. Pugill. 2:17. 1815. Agrostoinia Cervant. Naturaleza 1:345. 1870.
Description Spikelets subsessile in two rows on one side of the rachis, with one perfect floret, the rachilla articulate above the glumes, prolonged beyond the fertile floret, and bearing a narrow or club-shaped rudiment composed of one or more reduced sterile lemmas; glumes narrow, 1-nerved (rarely 3-nerved), the second a little longer than the first; fertile lemma 3-nerved, awned from the back just below the usually acute tip, the callus more or less bearded on the sides, the keel glabrous or sparsely pilose, the margins usually ciliate, the hairs on the upper part often much longer than the rest.
Note Annual or perennial, often stoloniferous grasses, with 2 to several digitate, verticillate, or subracemose spikes.
Key a. Florets dark brown _ - _ _ ---1. C. PETRAEA aa. Florets green or pale, sometimes tinged with purple. b. Plants annual; rudiment broad, truncate, conspicuous. c. Fertile lemma 3-3.5 mm. long, the cilia as much as 4 mm. long; rudiment composed of one reduced floret - -2. C. VIRGATA cc. Fertile lemma not more than 2.5 mm. long, the cilia 1-2 mm. long; rudiment composed of two reduced florets ---- 3. C. INFLATA bb. Plants perennial; rudiment narrow, acute, usually inconspicuous-- 4. C. RADIATA
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