4O AGROSTIS. 



glume at its base. Branches of panicle whorled, capillary. 

 Spikelets i i-inch long. 8. A. billardieri. 



III. Glumes hard, coriaceous ; flowering nearly as long as the 

 empty, often pedicelled, silky at the base. Palea hard, as long as the 

 flowering glume, with a rigid bearded pedicel of a second glume at its 

 base. Panicle contracted, branches very short. 



Leaves filiform ; spikelets ^- i-inch ; awn exserted 9. A. setifolia. 

 Leaves filiform; spikelets -J Hnch ; awn exserted 10. A. avenoides 

 Leaves concave ; spikelets i i-inch; awn very short n. A^youngii. 

 Leaves concave ; spikelets i i-inch ; awn exserted 12. A. quadriseta. 



