52 POACEAE. 



5. Bromus secalimis L. In waste places and fields from Me. to Wash., Fla. 

 and Calif. Introduced from Europe and Asia. — Alt. about 5000 ft. — Boulder; 

 Fort Collins. 



6. Bromus patulus M. & K. In waste places from Mass. to Wyo., Mo. 

 and Colo. Introduced from Europe.— Alt. about 5000 ft. — Fort Collins. 



7. Bromus hordeaceus L. (S. mollis L.) In waste places from Me. to 

 Wash., Del., Colo, and Ariz. Introduced from Europe. — Denver. 



8. Bromus Porteri (Coult.) Nash. (B. Kalmii Porteri Coult.) On hill- 

 sides and in meadows from Man. to Sask., Alb., Colo, and Ariz. — Alt. 7000- 

 11,000 ft. — About Ouray; West Mancos Cafion; Georgetown; Mancos; Cerro 

 Summit; Arboles; Durango; North Park; Cameron Pass; Stove Prairie 

 Hill; Twin Lakes; Buffalo Peaks; Gunnison; Marshall Pass; Robinson; 

 Clear Creek; Middle Park; Wagon Wheel Gap; Chambers' Lake; Ft. Col- 

 lins; Four-Mile Hill; Michigan Hill, Cameron Pass; Dolores. 



9. Bromus lauatipes (Shear) Rydb. (S. Porteri lanatipes Shear.) On 

 hillsides in Colo. — Alt. 5000-9000 ft. — Lower Boulder Canon, Boulder Co.; 

 Idaho Springs; Mountain View; Hiawatha; vicinity of Boulder; Lafayette; 

 Empire Pass; Dome Rock Valley; Fort Collins; Poudre Cation; Rist Cafion; 

 quaking asp grove, west Gunnison Co. ; gulch west of Soldier Caiion ; Hahn's 

 Peak, Routt Co. 



10. Bromus Richardsonii Link. (5. ciliatus Coult. ; not L.) In mead- 

 ows and on hillsides from Sask. to B. C, Colo., Ariz, and Ore. — Alt. 

 6000-11,000 ft. — Cheyenne Mountain; vicinity of Pike's Peak; near Pagosa 

 Peak; Pandora; Gunnison; mountains of Larimer Co.; Upper La Plata 

 River; Beaver Creek; about Ouray; Mount Baldy; Ruxton Dell; Estes 

 Park; Colorado Springs; Silver Plume; Marshall Pass; Tobe Miller's ranch; 

 Moon's ranch; Happy Hollow; Four-Mile Hill; gulch west of Soldier 

 Caiion; bank of Poudre; Andrew's ranch; western Gunnison Co. 



11. Bromus Pumpellianus Scribn. In meadows and on hillsides from Sask. 

 to Alaska and Colo. — Alt. 6000-10,000 ft. — On Grizzly Creek; Veta Pass; 

 Gray's Peak; Walsenburg; Como; Beaver Creek Camp. 



Bromus Pumpellianus melicoides Shear is an awnless variety. — Beaver 

 Creek. 



12. Bromus inennis Leyss. Escaped occasionally from cultivation from 

 Ohio to Mont, and Colo. — Alt. about 5000 ft. — Fort Collins. 



13. Bromus tectorum L. In waste places from Mass. to Wash., Va. and 

 Utah. Introduced from Europe. — Alt. 5000-6000 ft. — ^Longmont, Boulder 

 Co.; vicinity of Boulder; Fort Collins. 



14. Bromus sterilis L. In waste places from Mass. and Ohio to Pa. and 

 Colo. Introduced from Europe and Asia. — Alt. about 5000 ft. — Fort Collins; 

 estray in garden plot. 



Tribe 10. HORDEAE. 



66. AGROPYRON. Wheat-grass, Quack-grass. 



Rachis of the spike breaking up at maturity, the joints falling with the spikelet. 



I. A. Scribneri. 

 Rachis of the spike continuous. 

 Cespitose, the innovations intra-vaginal ; no horizontal stolons (except in A. 



arisonicum) . 



