342 POACE^. 



the stiff twisted and bent awn starting a little below the middle 

 and extending to the apex of its glume or a little beyond, hairs in 

 2 tufts, one on either side, less than half as long as the glume ; rudi- 

 ment 1 mm. long, with a few short hairs reaching beyond the apex. 



California (Mendocino), Prinyle in 1882. 



Oregon to California. 



T. C. Montanensis (Scribn.). Deyeiixia Montatiensis fecnbn. 

 Soc. Pro. Agricl. Sci. 6 (1883). 



A rigid glaucous perennial, 20-40 cm. high, with slender root- 

 stocks. Sheaths 3, nearly smooth, the ujDper extending nearly half 

 way to the top of the plant, or almost to the panicle; ligule firm, 

 decurreut, 3 mm. long; blades involute, rigid, pungent-pointed^ • 

 6-12 cm. long, 2-2.5 mm. wide, scabrous above and below. Panicle 

 linear, dense or slightly interrupted, 5-8 cm. long; rays in half- 

 whorls of 3-7, the longest 2.5 cm. long, flower-bearing on the outer 

 three-fifths. Spikelets pedicellate, linear-lanceolate, 4-4.7 mm. 

 long; empty glumes equal or subequal, scabrous, first 1-nerved, 

 second 3-nerved, the lateral nerves obscure, rudiment 1 mm. long, 

 the hairs extending to tlie top of the palea; floral glume scabrid,. 

 oval, truncate, 4-5-toothed, about 3 mm. long, awn from near the- 

 middle reaching to its apex; jxilea oval, erose or toothed, 2.5 mm. 

 long. Anthers linear, 2.2 mm. long. 



British America, £J. Bourgeau u\ 1858. 



Montana. Canhy & Scribner 363 in 1883. 



8. C. Porteri A. Gray, Proc. Amer. Acad. 6: 79 (1862), Deij- 

 euxia Porteri Vasey, Cat. Gr. U. S. 51 (1885).- 



Perennial, from creeping rootstocks. Culms slender, erect, 60- 

 120 cm. high. Sheaths close, half as long as the interuodcs; ligule 

 2-3 mm. long; blades flat, scabrous, with a woolly-bearded ring at 

 the base on the outside, 12-20 cm. long, 5-7 mm. wide, apex 

 attenuate, base narrow. Panicle exserted, open or thin, 7-14 cm. 

 long, 1.5 cm. wide; rays few to many, the clusters 2-3 cm. distant, 

 1-0 cm. long. Spikelets rough, pale green, elliptical, acute, 3.5-4 

 mm. long; empty glumes nearly equal, appearing lanceolate, owing 

 to the upper part having involute margins, first 1-nerved, second 

 obscurely 3-nerved; floral glume 2.5 mm. long, ovate, truncate- 



