108 



Festuceae 



Eragrostis 



50 



Map 155 



Poa pratensis L. 



/ 50 



Map 156 



Poa syl vestris Gray 



5 ~30 



Map 157 



Poa Wolfii Scnba 



—1ft 

 Map 159 



Eragrostis spectabilis (Pursh) Stead. 



56 



Map 160 



Eragrostis cilianensis (All.) Link. 



13. Poa cuspidata Nutt. (Poa brachyphyUa Schultes.) Known from 

 Indiana only by a specimen collected in 1837 near New Albany by Dr. A. 

 Clapp, which is now in the herbarium of Wabash College. I found it in 

 southern Ohio the last of March in a habitat that convinces me that it can 

 still be found in Indiana if search is made in early spring in the knobs on 

 the ridges of Virginia pine and chestnut oak. 



Pa., Ohio, Ind., southw. to Ga. and e. Tenn. 



12-341. ERAGROSTIS Host Lovegrass 



Culms creeping and rooting at the nodes 1. E. hypnoides. 



Culms not creeping and rooting at the nodes. 

 Perennials. 



Sheaths villous along the margins, rarely smooth; panicles mostly purplish, 

 broadly spreading, more than half as wide as long; glumes about 1 mm long; 



lemmas 1.8-2.5 mm long, obtuse 2. E. spectabilis. 



Sheaths glabrous along the margins; panicles mostly yellow, narrow and elongate, 

 not half as wide as long; glumes mostly 2-3 mm long; lemmas mostly 2.5-3 

 mm long, acute. (See excluded species, no. 50, p. 1026.) E. trichodes. 



