106 



Festuceae 



Poa 



5 50 



Map 149 



Poa compressa L. 



50 



Map 150 



Poa languida Hitchc. 



50 

 Map 151 



Poa alsodes Gray 



4. Poa compressa L. Canada Bluegrass. Map 149. Found throughout 

 the state almost everywhere except in very wet places and in dense wood- 

 land. It often forms a good part of permanent pastures but is inferior to 

 Kentucky bluegrass. It is sometimes confused with the last named species 

 from which it is easily separated by its flat stem. Roll the stem between 

 the fingers to ascertain if flat or round. 



Nat. of Eu. ; Newf. to Alaska, southw. to Ga., Ala., Okla., N. Mex., 

 and Calif. 



5. Poa languida Hitchc. (Proc. Biol. Soc. of Washington 41 : 158. 1928.) 

 (Poa debilis Torr. of Gray, Man., ed. 7, of Britton and Brown, Illus. 

 Flora, ed. 2, and of Deam, Grasses of Ind.) Map 150. This is an infrequent 

 grass in our northern counties. It is strictly a dense woodland species, and 

 is usually found on black and white oak ridges, sometimes in moist 

 locations. 



Newf., Que. to Wis., southw. to Pa., Ky., and Iowa. 



6. Poa alsodes Gray. Map 151. This is a rare woodland species found 

 in a few of our northern counties and in one southern county. It is usually 

 found in dry soil in beech and sugar maple woods although I have one 

 specimen that was found in a low woods associated with white elm and 

 soft maple. 



Maine to Minn., southw. to Del., and in the mts. to N. C. and Tenn. 



7. Poa triviAlis L. Rough Bluegrass. Map 152. Although I have 

 found this species only once in the state, it has been reported from five 

 counties. In 1936 it was found in Grant County by J. E. Potzger. It is 

 often used in mixtures of lawn grass seed, and I was told by the superin- 

 tendent of parks at La Porte that it was the grass he had found to thrive 

 in shade. It is remarkable that it has not been found more often. 



Nat. of Eu. ; Newf., Ont. to S. Dak., southw. to Va. and W. Va., and 

 on the Pacific coast from s. Alaska to n. Calif. 



