66 



PANICACE.E. 



B. 



b. Clusters of spikelets secuncl along the main axis, the 

 terminal one in each group fertile, with delicate empty 



glumes (17) 



b. Clusters of spikelets not secuncl, the terminal one in each 



group sterile ; first empty glume minute, the second large 



and coriaceous with hooklike spines on the back. (18) 



Spikelets few, clustered in the axils of the upper leaf-sheaths, 



1-flowered; empty glume 1, floral glume awned. . . (19) 



15. (63). Anthephora Schreb. 

 (1772-79). Hiipnilwunis Keichb. 

 Steud. Syn. PI. Gram. Ill (1855). 



Beschr. Gras. 2 

 Nom. 37 (1841). 



105, t. 44 

 Antephora 



9/ "^ 



Fig. 15. — Anthephora t'lcgans. A, spikelets; (/, floret. (Scribner.) 



Spikelets 1-flowered, 3-4 together, of which 1-2 are perfect, 

 2-3 sterile ; each group surrounded by a hard involucre consisting 

 of the first empty glumes of each spikelet, the groups falling off 

 entire from the flexuose rachis of the single terminal spike. 



First glume minute, second largest, third small, floral glume 

 and palea smootli, firmer, and obcompressed. Stamens 3. Styles 

 slightly i;nited at the base. Grain obcompressed, ovate to oblong, 

 enclosed by the glume and palea. but not adherent. 



Tufted, branching grasses, with flat leaf-blades. 



