284 POACE.s. 



f. Floral glume 4 mm., first glnme 3.5 mm., sec- 

 ond glume 4-4.3 mm. long 9 



f. Floral glume 3 mm., first glume 1.5-2 mm., 



second glume 3 mm. long, panicle brownish. . 10 

 f. Floral glume 3 mm., first glume 2 mm., sec- 

 ond glume 3-3.3 mm. long, liglit lead color. . 11 



b. Floral glume less than 3 mm. long (g) 



g. Floral glume prominently pubescent 12 



g. Floral glume pubescent little or none (h) 



h. Floral glume 3-nerved, second glume 1-nerved. (i) 

 i. First glume nerveless, about 0.5 mm., floral 



glume 1.5 mm. long * . . 13 



i. First glume 1-nerved (j) 



j. Floral glume 2-3.7 mm. long. . . . (k) 

 k. Leaves of sterile shoots 60 cm. or 



more long 14 



k. Leaves of sterile shoots 6-10 cm. 



long 15, 16 



k. Leaves of sterile shoots 1-3 cm. 



long 17,18 



j. Floral glume less than 2 mm. long. . . (1) 



1. Floral glume 1 mm. long or less. . . 19 



1. Floral glume 1.7 mm. long. . . . (m) 

 m. Panicle 1-3 cm., floral glume 



1.7-2 mm. long 20 



m. Panicle 2-5 cm. long 21 



m. Panicle 8-20 cm. long 22 



1. Floral glume 1.5 mm. long. . . . (n) 

 n. Lower sheaths flattened over flat 



culms (o) 



o. Leaf-blades 4-12 cm. long, 1-2 



mm. wide 23 



o. Leaf-blades 30 cm. long, 3 mm. 



wide 24 



n. Lower sheaths not prominently 



flattened. . , « . » . . . (p) 



