H^nd.ph. 10. GRAMIKE^; 83 



Spathelhdes 2, awnless, acute ; lodicule 

 lanceolate; glumelles not notched Milium. 98. 



Spathelhdes 2, awnless, acute J lowe?' 

 spatliellule 3-cut Vilfa. 88. 



Spallielhdes 2, lower ending in a bristle; 

 loiver spatliellule 2-cut Calamagrostis. 93. 



Spathellules 2, lower with a bristle below 

 the apex; glumes nearly equal, obtuse, 

 nicked, with a long bristle Polypogon. 95. 



Spathelhdes 2, lower ending in an awn ; 

 spathelhdes caxi\\sig\no\x^; «z(//i jointed Stipa. 97» 



Spathellules 2, lower ending in an awri ; 

 spathellules membranaceous ; awn not 

 jointed . . . AcHNATHERtJM* 92* 



Spathellules 2, lower with an awn below 

 the apex, 3 or 4-toothed; glumes very long, 

 base ventricose Gastrjidium. 9i. 



b. Glumes l-Jtowered ; lower spathelle smallest ; 

 spathelhdes 2. 



Spathelhdes awnless, lower many-toothed ; 

 glumes truncated, mucronate Phleum. 83. 



Spathelhdes awnless, lower acute; glumes 

 vei'y acute; locusta spiked, unilateral. .... Sp.artina. 87* 



Spathellules mucronate below the apex ; 

 stigmata 3 ; awns turbinate, 3-sided ; 

 panicle spiked Psamma. 86. 



Spathelhde lower, with a bristle below 

 the apex; upper 2-cut; stigmata 2; panicle 

 compound Apera. 90. 



Lower spathelhdes ending in a bristle; 

 glume truncated, fringed; axis digitate .... Mibora. 99. 



Lower spathellules awned below the 

 middle; bristles 2, at the top; panicle spiked Lagurus. 96. 



c. Glumes imperfectly 'i-Jlowered ; spathellules 2, awnless. 



Rudiment of the abortive flowret sessile, 

 subulate ; glumes nearly equal, boatshaped, 

 gibbous Phalaris. 84. 



Rudiment of the abortive flowret pedi- 

 celled, filiform; glumes equal; lodicule lan- 

 ceolate, small Chilochloa. 82, 



Rudiment of the abortive flowTet pedi- 

 celled, clavate; glumes \ery short, persist- 

 ing ; axis digitate Cynodon. 51 . 



ft2 



