MANUAL OF THE GRASSES OF THE UNITED STATES 



63 



lumbia to southern California, Ari- 

 zona, and Texas; rare as a waif in the 

 Eastern States; introduced from Eu- 

 rope. This species has been referred to 

 F. bromoides L. by American authors. 



nate, about 5 mm. long; lemmas lan- 

 ceolate, glabrous or scaberulous, 6 to 

 7 mm. long; awn 10 to 15 mm, long. 

 O — Open ground, mountain slopes, 

 and open woods, British Columbia to 



Figuee 47. — Festuca myuros. Spikelet, 

 X 5. (Chase 2393, D. C.) 



5. Festuca myuros L. (Fig. 47.) 

 Differing from F. megalura chiefly in 

 the absence of cilia on the lemma; 

 panicle usually smaller, first glume 1 

 to 1.5 mm., the second 4 to 4.5 mm. 

 long. O — Open ground, Coastal 

 Plain, Massachusetts to Texas; Ohio; 

 Wisconsin; Pacific coast, Washington 

 to southern California; Arizona; Mex- 

 ico and South America; introduced 

 from Europe. 



6. Festuca pacifica Piper. (Fig. 48.) 

 Culms erect or geniculate at base, 30 

 to 60 cm. tall; blades soft, loosely in- 

 volute, glabrous, 3 to 5 cm. long; pan- 

 icle 5 to 12 cm. long, the lower 

 branches solitary, somewhat distant, 

 subsecund, spreading, 1 to 3 cm. long; 

 spikelets 3- to 6-flowered; first glume 

 subulate-lanceolate, about 4 mm. 

 long, the second lanceolate-acumi- 



Figube 48. — Festuca pacifica. Panicle, X 1; floret, 

 X 10. (Type.) 



Baja California, east to western Mon- 

 tana and New Mexico. 



Festuca pacifica var. simulans 

 Hoover. All spikelets reflexed or di- 

 vergent at maturity. O — Kern 

 and Kings Counties, Calif. 



7. Festuca confusa Piper. (Fig. 49.) 

 Resembling F. pacifica; sheaths re- 

 trorsely pilose; foliage pubescent; 

 spikelets usually 2- or 3-flowered; 

 glumes hirsute with long spreading 

 hairs; lemmas glabrous. — Dry 

 hillsides, Washington to southern 

 California. 



8. Festuca grayi (Abrams) Piper. 

 (Fig. 50.) Resembling F. pacifica, 

 often somewhat stouter; sheaths and 

 sometimes blades pubescent; glumes 

 glabrous to sparsely villous; lemmas 

 pubescent, puberulent or sometimes 

 villous. O (F. microstachys var. 

 grayi Abrams.) — Open ground and 

 rocky slopes, Washington to southern 

 California and Arizona. 



9. Festuca arida Elmer. (Fig. 51.) 

 Culms erect or spreading, mostly less 

 than 15 cm. tall; sheaths and blades 



