Elymus 



HORDEAE 



117 



Map 182 

 Elymus virginicus 



var. intermedius IVasey) Bush 



50 



Map 184 

 Elymus virginicus 



var. austrahs (Scribn. & Ball) Hitchc. 



state. It is a low ground grass which is usually found on wooded, alluvial 

 areas and along streams. 



Maine, Que., and Mich., southw. to N. C, Ohio, Ind., and Mo. 



3. Elymus villosus Muhl. {Elymus striatus of recent authors, not 

 Willd.) Map 179. Infrequent to frequent throughout the state. This 

 species prefers a dry and rather sandy soil, although it is sometimes 

 found in moist situations. It is found mostly on wooded slopes, crests or 

 ridges, on alluvial banks, and rarely in the open along roadsides. 



Vt. to Wyo., southw. to N. C, Ala., and Tex. 



3a. Elymus villosus f. arkansanus (Scribn. & Ball) Fern. (Rhodora 

 35:195. 1933.) {Elymus striatus var. arkansanus (Scribn. & Ball) Hitchc. 

 and Elymus arkansanus Scribn. & Ball.) Map 180. This form has been 

 found in only a few counties. It grows in habitats similar to those of 

 the species. 



Mass. to Ind. and Iowa, southw. to Md., Mo., and Okla. 



4. Elymus virginicus L. Virginia Wild-rye. Map 181. Frequent to 

 common throughout the state. It grows in wet or moist soil and is found 

 mostly in alluvial areas along streams and ditches, in low places in wood- 

 land, and along roadsides. 



The upper surface of the leaves is usually glabrous or somewhat sca- 

 brous or rarely with a few hairs on the veins. I have, however, a few 

 specimens with the upper surface of the blades softly pubescent. I think 

 these plants should have a distinguishing name. They are from Fayette, 

 Marion, Starke, and Warrick Counties. 



Newf. to Alberta, southw. to Fla. and Ariz. 



4a. Elymus virginicus var. intermedius (Vasey) Bush. (Amer. Midland 

 Nat. 10: 60. 1926.) {Elymus virginicus var. hirsutiglumis (Scribn.) Hitchc. 

 and Elymus hirsutiglumis Scribn.) Map 182. Infrequent throughout the 

 state in habitats similar to those of the species. 



Maine to Iowa, southw. to Fla. and Tex. 



