262 GRASSES OF IOWA. 



DESCRIPTION. 



Wood Meadow Grass. A slender, erect and rather rigid peren- 

 nial, i to i\ feet ( 1^-6 dm.) high, with narrow, flat leaves, and usually 

 open panicles 2 to 5 inches (4-10 cm.) long. Spikelets two to five- 

 flowered, 1 -J to 2\ lines (3-5 cm.) long, with very acute empty glumes 

 and faintly nerved flowering glumes, which are 1 to 1^ lines (2-3 mm.) 

 long, and webbed at the base. Dry or rather moist soil, Labrador and 

 Newfoundland to Pennsylvania, westward to British Columbia, Idaho 

 and Colorado. June to September. 



Poa nemoralis has been cultivated in central Iowa, where it per- 

 sisted for a few years. It is not known to be a native of Iowa, although 

 occurring in the vicinity of La Crosse, Wisconsin, on sandstone rocks. 



DISTRIBUTION*. 



Iowa. Ames, cultivated (Sirrine, Pammel, Crozier). The species 

 has been found near La Crosse, Wisconsin (Pammel). 



North America. Dry or rather moist soil, Labrador and New- 

 foundland to Pennsylvania, westward to British Columbia, Idaho and 

 Colorado (Cache, La Poudre River 17, Ft. Collins, Colorado Springs, 

 Golden, Rists' Canon, Beaver Creek, Pammel; Larimer County, Cran- 

 dall ; Parry), Wyoming (Williams 2943; Albany County, Nelson, 

 1885: Yellowstone National Park, A. & E. Nelson; Sheridan County 

 112, 113, 127; Sherman, 247; New Castle 155, Pammel; Fuller's 

 Ranch, Black Fork, Pammel, Johnson, Buchanan and Lummis), L'tah 

 (southern Utah, Parry; Haydens' Fork 153, and Smith's Fork, Pam- 

 mel and Stanton), New Mexico (Parry, 233), Wisconsin (La 

 Crosse, C. M. King), and Minnesota (Carleton, Sandberg). 



General. Great Britain, Germany, Arctic and northern Europe 

 to the Mediterranean Sea, Siberia to the Himalayas. 



8. POA FLAVA. 



Poa llava L. Sp. PI. 68. 1753. Beal. Grasses of N.A. 2: 550. 1896. 

 Nash in Britton and Brown. 111. Fl. 1: 205. /. 471. 1896. 



Poa serotina Ehrhart. Beitr. 6: S3. 1791. Watson and Coulter. Gray. 

 Man. Bot. 665. 1890. (6th ed.) 



DESCRIPTION. 



Fowl Meadow Grass. Culms 1^ to 5 feet (4-12 dm.) tall, erect, 

 simple or rarely branched, smooth, glabrous. Sheaths usually shorter 

 than the internodes, smooth and glabrous; ligule 1 to 2 lines (2-4 mm.) 



