GRASSES OF IOWA. 



261 



D. ( ). Wilson), associated with Alms balsamea, Pyrus orbutifolia and 

 Betula papyrifera. 



General. Tennessee to Kansas, Illinois and Iowa. 



7. POA NEMORALIS. 



Poa nemoralis L. Sp. PI. 69. 1753. Watson and Coulter. Gray. 

 Man. Bot. 664. 1890. (6th ed.) Beal. Grasses of N. A. 2: 552. 1896. 

 Nash in Britton and Brown. 111. Fl. 1: 205. /. 470. 1896. Scribner. 

 Bull. U. S. Dept. Agr. Div. Agros. 17: 250. f.546. 1899. 



Poa caesia var . strictior A. Gray. Man. Bot. 629. 1867. (5th ed.) 



Fig. 182. Pan nemoralis— a, empty glumes; b, Fro. 183. Poaflava— a, spikelet; b, empr.y glumes; e 



flowering glumes; c, palet. (Div. Agros. U. S. flowering glumes. (Charlotte M. King. ) 

 Dept. Agr. ) 



