POACEAE 137 



3. E. pilosa (L.) Beauv. Waste places or cultivated ground: 



Mass. to Mich, and Kan., south to Fla. and Tex. Natural- 

 ized from Europe. 



Common throughout the range, except the pine-barrens, there 

 rare. 



4. E. Purshii Schrad. In dry places: Me. to Ont. and N. Dak., 



south to Fla. and Tex. 



Common throughout the area except the pine-barrens, there 

 rare; apparently a weed. 



5. E. Eragrostis (L.) Karst. In waste places or cultivated 



ground: Mass., N. Y. and Pa. Naturalized from Europe. 

 A rare and local weed. 



6. E. megastachya (Koeler) Link. (E. major Host.) In waste 



and cultivated ground: nearly throughout N. Am. Native 

 of Europe. 

 Common as a weed. 



7. E. pectinacea (Michx.) Steud. In dry soil: Me. to S. Dak., 



south to Fla. and Tex. 



Scattered throughout the range, except the pine-barrens, there 

 rare; rare also in the north. 



8. E. hypnoides (Lam.) B. S. P. On sandy or gravelly shores: 



Vt. and Ont. to Wash., south to Fla. 



Rare, and local, not recorded from the pine-barrens, but com- 

 mon along the Delaware. 



61. Sphenopholis Scribn. (Eatonia Endlich.) 



Empty scales unequal, the first shorter and about one-sixth as wide as 

 the second. 

 Second scale obovate, often almost truncate. I. 5. obtusata. 



Second scale oblanceolate, obtuse or abruptly acute. 2. 5. pollens. 



Empty scales equal, the first not less than one-third as wide as the 



second. 3. S. nitida. 



I. S. obtusata (Michx.) Scribn. {Eatonia pubescens Scribn. & 

 Merr.). In dry soil: Me. to Sasks., Fla. and Ariz. 



Throughout the range, except the pine-barrens, in some of its 

 forms; locally rare. 



