MANUAL OF THE GRASSES OF THE UNITED STATES 



63 



62, B.) 



Figure 63.— Distribution 

 Festuca myuros. 



ground, British Columbia to Baja California, common in the Coast 

 Ranges of California, east to Idaho and Arizona and a few localities 

 eastward; Pacific slope of South America (fig. 61). In mature lem- 

 mas the cilia may be obscured by the inrolling of the edges; moistening 

 the floret will bring the cilia to view. 



4. Festuca dertonensis (All.) Aschers. and Graebn. 

 Resembling F, 

 megalura, the pani- 

 cles on the average 

 shorter, usually 

 less dense; glumes 

 longer, the first 

 about 4 mm long, 

 the second 6 to 7 

 mm long ; lemma 

 lanceolate, scabrous 

 on the back toward 

 the apex, 7 to 8 mm 

 long; awn 10 to 13 

 mm long. O — 

 Dry hills and mead- 

 ows, British Co- 

 lumbia to southern 

 California; rare as 

 a waif in the East- 

 ern States ; intro- 

 duced from Europe. 

 This species has 

 been referred to F. 

 bromoides L. by 

 American authors. 

 5. Festuca myu- 

 ros L. (Fig. 62,-4.) 

 Differing from F. 

 megalura chiefly in 

 the absence of cilia 

 on the lemma; pan- 

 icle usually smaller, 

 first glume 1 to 1.5 

 mm, the second 4 

 to 4.5 mm, long. 

 G — Open ground, 

 Coastal Plain, 

 Massachusetts t o 

 Texas ; Ohio ; Pacific coast, Washington to southern California (fig. 63) ; 

 introduced from Europe. 



6. Festuca pacifica Piper. (Fig. 64.) Culms erect or geniculate 

 at base, 30 to 60 cm tall; blades soft, loosely involute, glabrous, 3 to 5 

 cm long; panicle 5 to 12 cm long, the lower branches solitary, some- 

 what distant, subsecund, spreading, 1 to 3 cm long; spikelets 3- to 

 6-flowered; first glume subulate-lanceolate, about 4 mm long, the 

 second lanceolate-acuminate, about 5 mm long; lemmas lanceolate, 

 glabrous or scaberulous, 6 to 7 mm long; awn 10 to 15 mm long. 



Figure 64.— Festuca pacifica. 

 Panicle, X Vi, floret, X 5. 

 (Type.) 



Figure 65.— Distribution 

 Festuca pacifica. 



Figure 



Plant, 



X 1; spikelot 



(Type.) 



55974°— 35 5 



