590 POACEiE. 



glumes narrow, first 2 mm. long, second 4 mm. long, 3-nerved; 

 joint of rachilla about 2 mm. long, scabrid, bent and enlarged and 

 disarticulating nearly midway between the contiguous florets; floral 

 glume 6-8 mm. long, obscurely 5-nerved, scabrid, acuminate, teeth 

 unequal, awn 8-13 mm. long; palea as long as its glume, 2-toothed. 

 Anthers 3 mm. long. Apex of ovary pubescent. 



Oregon, Howell in 1880 for U. S. Dept. Agricul. 20. 

 10. F. Californica Vasey, Contrib. U. S. Nat. Herb. 1:277 

 (1893). 



An erect rather stout perennial, 90-120, rarely 30-GO cm. high. 

 Leaves of sterile shoots scabrous, blades involute, half as long as 

 the culm, about 4 mm. wide, the blades breaking away, leaving the 

 sheaths, those of tlie culm usually 2 in number, tlie upper 5-20 

 cm. long; sheaths scabrous, shorter than the iuternodes, hairy at 

 the throat; ligule a ciliate fringe. Panicle open, pyramidal, 8-15 

 cm. long, the lower rays slender, fiexuose; distant in pairs, the 

 longest 5-10 cm. long, flower-bearing above the middle. Spikelets 

 4_C-flowered, 10-15 mm. long, joint of rachilla scabrid, 2 mm. 

 long, empty glumes ovate-lanceolate, first 5 mm., second 6 mm. 

 long; fioral glume scabrous, linear-lanceolate, 8-9 mm. long, be- 

 sides the awn 2 mm. long; palea scabrid, linear, 2-toothed, about 

 the length of its glume. A native grass valuable for cattle. 



Oregon (near Portland), Iloivell in 1886, distributed as F. 

 scahrella. 



Eocky Mountains to Oregon. 



11. F. viridula Vasey, 111. K A. Gr. 2:93 (1893). F. gracil- 

 lima Thurb. S. Wats. Bot. Calif. 2:318 (1880), not Hooker. 



Culms tufted, erect, 50-70 cm. high, mostly smooth throughout. 

 Leaves of sterile shoots numerous, blades mostly involute, narrow, 

 30-40 cm. long. Slieaths of the culm mostly 2 in number, the lower 

 about the length of its internode; ligule short, blades 5-8 cm. long, 

 2-3 mm. wide. Panicle 8-10 cm. long, rays erect, mostly in pairs, 

 the longest 5-7 cm. long, bearing 1-4 spikelets. Spikelets 10-15 

 mm. long, 6-9-flowered, rachilla scabrous-pubescent; empty glumes 

 lanceolate; floral glume oval-lanceolate, 7-8 mm. long, awn 1-6 



