86 AGROSTIDEAE 



33. BLEPHARONEURON Xash. 



I. Blepharoneuron tricholepsis (Ton.) Nash. Common in 

 dry rocky cliffs or hills in (he Transition Zone almost throughout 

 the State. 



34. EPICAMPES Presl. 



I. Epicampes rigens Benth. a single .species of a genua 

 common in Mexico; found only in the southern part of the State, 

 mostly in the southwest corner in the Sonoran Zones. 



35. AGROSTIS L. Red-top 



Panicle very dense or very narrow, the 

 branches of the panicle short and mostly 

 concealed oy the spikelets. 

 Stems weak at the base, bending down and 



rooting: panicle short and thick. i. a. stolonifera. 



Stems erect, not creeping over the ground; 



panicles large, very dense, bright green. :-. a. asperifoJia. 

 ramcle loose and spreading, the branches eas- 

 ily .seen, spikelets not crowded. 

 Branches of the panicle 3 to 4 inches long 



very slender and weak. 3. a. hiemalis. 



Branches of the panicle about 2 inches long 

 stouter and more rigid. 

 Talet very minute; a rare, high mountain 



sPe^^'es. 4 ^ idahoensis. 



Talet half as long as the flowering glume- 



the common "redtop." ,5. a. alba. 



1. Agrostis stolonifera L. in the southern part of the 



State in the Lower Sonoran Zone. 



2. Agrostis asperifolia Trin. Beside running water in the 

 Tran.sition Zone. A few records from the ditch banks of the lower 

 irrigated valleys. 



3. Agrostis hiemalis (Walt.) B. s. p. in the higher and 

 cooler mountains, in rich soil and frequently in shade; mostly in the 

 Canadian Zone though coniing down into the Transition Zone. 



4. Agrostis Idahoensis Nash, similar to the last but stiff 



and erect; rare in the mountains- of the northern part of the State 

 in the Canadian Zone. 



