FESTUCE^. 650 



scabrid, pubescent on the nerres of the lower half; palea linear, as 

 long as its glume, strongly ciliate on the nerves. Antliers 3 mm. 

 long. Vasey says some of the plants approach P. tennifolia Nutt. 



Oregon, Howell, Cusick fqr U. S. Dept. Agricul. 649. 



Washington and Oregon. 



41. P. hiipidnla Vasey, Contrib. U. S. Nat. Herb. 1:372 

 (1893). 



A stout perennial, 50-70 cm. high. Gnlms simple, decumbent at 

 base. S)ieaths shorter than the internodes; ligule obtuse, tlic central 

 portion 3 mm. long, appearing longer; leaves of the culm 4 iu num- 

 ber, blades smooth, flat or conduplicate, 5-15 cm. long, 5-7 mm. wide, 

 the apex pungent. Panicle pyramidal to linear, 6-15 cm. long, rays 

 in threes to fives, the half-whorls rather close, the longest 3-6 cm. 

 long, bearing spikelets on the outer half. Spikelets broadly oval to 

 narrowly oval, 3-5-flowered, 7-9 mm. long. Joint of rachilla 

 about 1 mm. long; empty glumes membranous, subequal, linear- 

 lanceolate or elliptical-lanceolate, 3-nerved, second 5-7 mm. long; 

 florp^ glume 5.5-6.7 mm. long, densely webbed at base, marginal 

 nerves and three-fourths of the keel densely and conspicuously 

 pubescent, thinly clothed between the nerves with very short hairs 

 or nearly smooth, oval, subacute, denticulate; palea linear, ciliate 

 on the keels, 5.2 mm. long. 



TJnalaska, Harrington for IT. S. Coast Surv. iul871; Alaska, 

 L. M. Turner in 1881 for Scribner; liehring Island, Macoun 49 in 

 1891. 



42. P. Bnpreohtii Peyr. Linna?a, 30: 6 (1859). 



A densely tufted perennial, 20-50 cm. high. Leaves of sterile 

 shoots scabrous, blades conduplicate, long-pointed, 30-40 cm. long, 

 3 mm. wide, when old breaking near the ligule; those of the culm 

 2-3 in number, ligule 4 mm. long ; blade 10 cm. long. Panicle thin, 

 ovoid or pyramidal, 8-15 cm. long, rays scabrous, in pairs remote 

 from each other, the longest 4-6 cm. long, bearing 3-6 spikelets on 

 the upper third. Spikelets linear-lanceolate or OTate-lanceolatc, 4-6- 

 flowered, 6-9 mm. long, joint of rachilla 0.8 mm. long; first 

 empty glume ovate-lanceolate, 1 nerved, 2.5 mm. long, second 

 -oval-lanceolate, 3-3.2 mm. long; floral glume scabrid on the keel. 



