AGROSTIDEAE 49 



The Canary Grass aiui iis relatives (Tribe IV, 

 Phalarideae) need only b'- mentioned. A single unimport- 

 ant species has been collected a few times in Grant County, 

 where it probably was introduced. Two other species, one 

 of them introduced, have been collected in the State. 



Tribe IV. PHALARIDEAE. 



Third and fourth glumes empty, awnless. 20. Phalaris. 



Thirrl and fourth glumes enclosing staminate 



flowers. -'1. Savastan-a. 



20. PHALARIS L. Canary Grass. 



1. Phalaris caroliniana Walt. Ilas been eoKeeted i:i bever.al 

 places in Grant County in the Upper Sonoran Zone. 



2. Phalaris angustata Nees. A single spoc-ii>i-n from 

 Mangas Springs, was probably cultivated. 



21. SAVASTANA Sehwank. 



I. Savastana Odorata (L.) Scribn. Occurs sparingly in the 

 mountains at the northern end <i1 the State, in the Transition Zone. 



The Tribe Containing Red-top and its relatives 

 (Tribe V, Agrostideae) is a very important one, including 

 as it does some of the largest genera that we have in the 

 Stat-. It contains the Needle Grasses, Porcupine Grasses, 

 Mountain Rice, me genus Ahihlcnbergia with over twenty 

 species, Wild Timothy, the Dropseed Grasses, Red-top and 

 several other genera of less importance. It will be necessary 

 to tuke them up somewhat in detail and refer to particular 

 species some of which have common names and some have 

 not. 



The following key will assist in finding the generic 

 names ; the species are found following the discussion of each 

 eenus. 



