POACEAE. 
23 
3. Phalaris canariensis L. Introduced from Europe and Africa; in waste 
places from N. S. to S. D., Va. and Colo.—Alt. up to 8500 ft.—Gunnison; 
Colorado Springs. 
15. SAVASTANA. Holy Grass, Vanilla Grass. 
1. Savastana odorata (L.) Scribn. ( Hierochloe borealis R. & S.) Among 
bushes and on banks from Lab. to Alaska, N. J. and Ariz.—Alt. 6500-8500 
ft.—Stove Prairie, Larimer Co.; West Cliff; South Park; along the Cone¬ 
jos River, north of Antonito. 
Tribe 6. AGROSTIDEAE. 
16. ARISTIDA L. Poverty Grass, Wire Grass. 
Spikelets crowded, 4-6 on the short panicle-branches, which are spikelet-bearing 
to the base or nearly so. 1. A. fasciculata. 
Spikelets not crowded, usually 1-3, or if more the branches of the panicle or 
their divisions with a long, naked base 
Second glume of the spikelet 1.5 cm. long or less, usually equalling or slightly 
exceeding the flowering glume. 2. A. Fendleriana. 
Second glume of the spikelet 2 cm. long, from more than longer than to 
nearly twice as long as the flowering glume. 3. A. longiseta. 
1. Aristida fasciculata Torr. In dry soil from Kans. to Calif, and Tex.; 
also in Mex.—Alt. up to 5500 ft.—Canon City. 
2. Aristida Fendleriana Steud. (A. purpurea Coult.; not Nutt.) In dry 
sandy soil from S. D. to Mont., Tex. and Calif.—Alt. 4000-8500 ft.—Los 
Pinos; Buena Vista; South Park; Salida, Chaffee Co. 
3. Aristida longiseta Steud. In dry soil from Ill. to S. D., Wash., Tex. and 
Mex.—Alt. 4000-8500 ft.—Near Boulder; Trail Glen; New Windsor, Weld 
Co.; mountains between Sunshine and Ward; Arboles; Durango; Ft. Col¬ 
lins; Colorado Springs; Cucharas Valley; Denver; Pueblo; foot-hills, Lari¬ 
mer Co.; Palisades ; Canon City. 
17. STIPA L. Porcupine-grass, Oat-grass, Wild Oats. 
Outer glumes of the spikelet 2 cm. long or more. 
Awn plumose. 1. 5 . neo-mexicana. 
Awn not plumose. 
Base of panicle usually included in upper sheaths; flowering scale 8-12 mm. 
long; awn slender and curled above. 2. S. comata. 
Base of panicle exserted; flowering scale over 12 mm. long; awn straight 
above or nearly so. 
Flowering scales 12-15 mm. long. 3. 5 *. Tweedyi. 
Flowering scales 20-25 rnm. long. 4. V spartea. 
Outer glumes of the spikelets 1.5 cm. long or less. 
Panicle loose and open. 
Awn plumose ; panicle-branches ascending. 5. S. Porteri. 
Awn not plumose ; panicle-branches diverging or reflexed at maturity. 
6 . S. Richardsonii. 
Panicle dense and spike-like. 
Empty glumes scarious or hyaline, the nerves hence prominent. 
Flowering glumes about 5 mm. long, long-hairy towards the apex. 
12. S. Lettermannii. 
