FESTUCEiE. 529 



a. Floral glume 2 \uvii. long 1, 24 



a. Floral glume, 2.5 mm. long 25 



a. Floral glume 3-3.5 mm. long :.'G 



s. Perennial (c) 



c. With creeping rootstocks (d) 



d. Culms much compressed, firm 27 



d. Culms terete or but little compressed. . . . (e) 



e. Floral glume 4.2 mm. long 28 



e. Floral glume 3-4 mm. long. (3.5-7 in no. 



30) (h) 



h. Ligule 1.5 mm. long, rays 3-G. ... 23- 



h. Ligule 1-2 mm. long, rays 2 20 



h. Ligule 2-4 mm. long, rays 2 30 



li. Ligule 4 mm. long, rays 3-4 31 



e. Floral glume 5-7 mm. long, ligule obsolete. . (i) 



i. Blades 2 mm. wide 32 



i. Blades 8-12 mm. wide 35 



e. Floral glume 5-6 mm. long, ligule 2 mm. long. 34 



C. Destitute of good creeping rootstocks (m) 



m. Floral glume 2.3-2.5 mm. long (also P. iiem- 



oralis, var. strictior) 35 



m. Floral glume longer (u) 



n. Apex of leaves abruptly pointed, the apex 

 tapering for 2-3 mm., ligule 3 mm. long, 



rays 2-3 3G 



n. Apex of leaves acuminate (r) 



r. Ligule 0.5 mm. long, rays 4-7, floral 



glume 3-3.2 mm. long 37 



r, Ligule 1-1.3 mm. long, rays 2, floral 



glume 4.5-5 mm. long 38 



r. Ligule 2 mm. long, rays 2-3, floral glume 



3.7-4 mm. long 35 



r. Ligule 2-2.5 mm. long, rays 1-5, floral 



glume 3.2-4 mm. long 36 



r. Ligule 2-2.5 mm. long, rays 1-5, floral 



glume 3.2-4 mm. long 39 



