148 GRASSES OF IOWA. 



DISTRIBUTION*. 



Iowa. Wild Cat Den, n (Ball) ; Smithland (Wakefield) ; Ames, 

 158 and 195 (Ball, Hitchcock) ; Iowa City (Hitchcock) ; Myron (Miss 

 King); High Bridge, Dallas County (Shimek) ; Unionville (Shimek). 



North America. From the New England states to North Caro- 

 lina; District of Columbia (Conant), New York (Washington 

 County, Parry) ; Alabama to Missouri, northwestern Iowa, Nebraska, 

 Minnesota; Canada east to Newfoundland. 



7. PHLEUM, 



Phleum'L. Sp. PI. 59. 1753 Endlicher. Gen. PI. 81. Bentham and 

 Hooker. Gen. PI. 3: 1146 Hackel in Engler andPrantl. Nat. Pflanz Fam. 

 II. 2: 48./. 47. 



Stelephuros Adans. Fam. 2: 31. 



Chilochloa Beauv. Agros. 37. pi. 7. f. 2. Nees. Gen. Fl. Germ. Mon- 

 ocot. 1: n. 6. Reichb. Ic. Fl. Germ. PI. 51. 



Achnodoton Beauv. Agros. 24. pi. 7 . f. 5. 



Spikelets i-flowered, in a very dense, cylindrical, spike-like panicle. 

 Lower glumes persistent, membranaceous, folded-carinate, subtruncate, 

 mucronate or short-awned; flowering glume hyaline, shorter, truncate. 

 Stamens 3. Styles distinct. Perennials. (From the Greek name for : 

 kind of reed.) 



According to Bentham and Hooker and Hackel there are 10 species 



found in Europe. The genus is found chiefly in central and western 



Asia and northern Africa and temperate and boreal regions of North 



America. Bell credits North America with but a single native species, 



Phleum alpinum ; Heller also recognizes only one. There are, however, 



two good native species. 



> 



PHLEUM PRATENSE. 



Phleum pratenseL,. Sp. pi 59. 1753. Scribner. Bull. U. S. Dept. Agr. 

 Div. Agros. 7: 120. /. 114. 1900. <3ded.) Vasey. Contr. U. S. Nat. Herb. 

 3: 86. Watson and Coulter. Gray. Man. Bot. 645. pi. 7.1890. (6th ed.) 

 Scribner. Grasses of Tenn. Bull. Univ. Tenn. Agrl. Exp. Sta. 7: 70. f. 87 . 

 1894. Beal. Grasses of N. A. 2: 276. 1896. Nash in Britton and Brown. 

 111. Fl. 1: 147. /. 334. 1896. 



