o<56 NATURAL HISTORY BULLETIN 



P. 326. 



E. tenuis (Willd.) Schultes; Iowa City, Macbride; Lyon 

 county, June, 1897. Shimek. 



P. 328. 

 Scirpus americanus Pers. ; Ames, June, 1897, Meeker & Ball. 



P. 329. 

 Scirjms lacustris L.; Clear Lake and Hancock county, July, 

 1896, Shimek; Mt. Pleasant, y. H. Mills; Pottawattamie 

 county, June, 1897, y. E. Cameron; Albin, July 1, 1S9S, Ball. 



P. 329. 



S.jluviatilis (Torr.) Gray; Hancock county, July 17,1896, 

 Shimek; Ames, June, 1898, Ball & Sample. 



P. 33o. 

 S. atrovirens MuhL; Mt. Pleasant, July 7, 1898, Muscatine, 

 July 4, 1898, and Vinton. June, 1898, Ball; Rock Rapids, 

 1896, Forest City, July 17, 1896, Mason City. July, 

 1896, Iowa City, June, 1894, Keokuk, July, 1895, and Grand 

 River. June, 1890, Shimek; Mt. Pleasant, y. H. Mills; Win- 

 neshiek county, June 13, 1896, H. Goddard. 



P- 330- 

 S. lincatus Mich.; Minerva. June. 1898, and Van Buren 

 county. Ball ; Wilsonville, Jul)' 7, 1895, H. C. Taylor; Cedar 

 Rapids, Hitchcock. 



P. 332. 



Hemicarpha micrantha (Vahl.) Britton; sandy river bot- 

 toms, Johnson county, Sept., 1894, Shimek. 



Scteria triglomerata Mich; Monroe county. July 13, 1898, 

 Ball. 



P- 336. 



Carex Iwpulina L.; Keokuk. July. 1895, Shimek; Dubuque. 

 July 17, 1895, Paul Bartsch. 



P. 336. 

 C. monile Tuck.; Story City, June 4, 1898, Ball. 



