AGROSTIDEAE 79 



27. LYCURUS H. B. K. 



I. Lycurus phleoides H. B. K. Texan Timothy. Common 

 all over the State in the Upper Sonoran Zone extending both do"W^n- 

 ■ward and upward into the Lower Sonoran and the Transition Zones. 



28. PHLEUM L. 



Spikes elongated-cylindric: awns less than 



one half as long as the outer glumes. 1. P. pratense. 



Spikes short and ovoid or oblong: awns about 



one half as long as the outer glumes. 2. P. alpinum. 



1. Phleum pratense L. Timothy. An introduced 

 species which has become naturalized in a few places along ditches 

 in the mountains in the Transition Zone. 



2. Phleum alpinum L. Alpine Timothy. In high moun- 

 tain meadows and on cold ridges and exposed peaks in the Hudson- 

 ian and Arctic-alpine Zones. 



29. ALOPECURUS L. 



I. Aiopecurus fulvus Smith. A not uncommon gi'ass found 

 growing in wet places in the Transition Zones. It is sometimes 

 called "water grass'' but this is purely a local name. 



Aiopecurus agrestis L. has been introduced as a weed in a few 

 places, the seeds having come with garden or field seeds. 



