POACEAE. 



17. Muhlenbergia Porteri Scribn. (M. Texana, Thurb. ; not Buckl.) On 

 hills and plains from Tex. to Colo, and Calif.; also Mex. Alt. about 6500 

 ft. Canon City. 



21. LYCURUS H. B. K. 



i. Lycurus pheoides H. B. K. On dry hillsides from Tex. to Colo, and 

 Ariz.; also Mex. Alt. 6000-7500 ft. Garden of the Gods; Meadow Park; 

 gulch west of Soldier Canon. 



22. PHLEUM L. TIMOTHY. 



Spikes usually elongated-cylindric ; awns less than ^2 the length of the outer 

 glumes. i. P. pratense. 



Spikes short, ovoid or oblong ; awn about l / 2 the length of the outer glume. 



2. P. alpinum. 



1. Phleum pratense L. In meadows and waste places, escaped from culti- 

 vation from N. Sc. to B. C, Fla. and Calif. Alt. up to 11,000 ft. Pagosa 

 Springs; Alpine Tunnel; Ruxton Park; Mancos. 



2. Phleum alpinum L. In mountain meadows from Lab. to Alaska, N. H. 

 and Calif.; also in northern Europe and Asia. Alt. 8500-12,000 ft. Near 

 Pagosa Peak; Dead Lake; Ruxton Park; mountains west of Cameron Pass; 

 Chamber's Lake; LaPlata; Georgetown; Seven Lakes; West Indian Creek; 

 Lake City; Robinson, Summit Co.; Gray's Peak; Beaver Creek; Boreas; 

 Hematite; Pike's Peak. 



23. ALOPECURUS L. FOXTAIL. 



Spike elongated-cylindric, 3-7 cm. long; 4-6 mm. in diameter. 



i. A. aristulatus. 

 Spike oblong, 2-4 cm. long; 9-12 mm. in diameter. 2. A. occidentalis. 



1. Alopecurus aristulatus Michx. In wet meadows from Me. to Alaska, 

 Pa. and Calif. Alt. 4000-11,500 ft. Wahatoya Creek; Colorado Springs; 

 Arboles; Laramie River, Larimer Co.; Grizzly Creek; Mancos; Dead Lake; 

 vicinity of Boulder; Manitou; Twin Lakes; South Park; Tobe Miller's 

 ranch, near La Porte; Quimby; Barne's Camp; Spring Canon; Soda Creek; 

 Poudre Canon; Hotchkiss; Table Rock; Fossil Creek; along Purgatory 

 River, near Trinidad. 



2. Alopecurus occidentalis Scribn. (A. alpinus of Coult. Man.; not L.) 

 In wet meadows from Alb. to B. C, Colo, and Utah. Alt. 8500-11,000 ft. 

 Cameron Pass; Marshall Pass. 



24. PHIPPSIA R. Br. 



i. Phippsia algida R. Br. In arctic-alpine localities from Greenl. to Alaska; 

 also in Colo., arctic Europe and Asia. Chicago Lake, near Georgetown. 



25. BLEPHARINEURON Nash. 



i. Blepharineuron tricholepis (Torr.) Nash. (Sporobolus tricholepis 

 Torr.) Mountain valleys from Colo, to Utah, Tex. and Ariz. ; also Mex. 



