1^8 NATURAL HISTORY BULLETIN. 



ALISMACE.^. 



A LIS MA Linn. Sp. PI. (1753). 



I. A. PLANTAGO Linn. Sp. PL, 342 ( i753)- 



A. -plantago var. arnericana, R. and S., Syst. III. (1818). 



Wats, and Coult., Gray's Man.. 6th ed., 554: Arthur, Fl. 

 Iowa, 31; Hitchcock, Ames FL, 522; Upham, FL Minn., 138. 



Common throughout the State. The plant varies greatly, 

 especially in regard to size and foliage, the result of different 

 conditions of its place of growth. June, July. 



Emmet county. Cratty; Iowa City and Cedar Rapids, Mac- 

 bride; Decorah, Llohvay ; Ames and Charles City, Arthur; 

 Boone, Bcssey; Muscatine, Refpert; Webster City, Pammcl ; 

 Marshalltown, Stewart; Hamilton county, Rolfs; Fremont, 

 Washington, Lee, Jackson and Scott counties, Shimek. 



ECHINODORUS Richard. Mem. Mus.. 365 ( 1815) 



I. E. ROSTRATUs {Nutt.) Engeliii. Gray's Man., 2nd ed., 

 438 (1856). 

 Alisnia rostrata Nutt. 



Wats, and Coult., Gray's Man.. 6th ed., 556; Hitchcock, 

 Bull. Terr. Bot. Club, XVI., 70. 



Ditches and swamps. Ilhnois to Iowa and southward; 

 rather rare. August, September. 



Hamburg, Hitchcock; Iowa City, Machridc; Muscatine, 

 Reppcrt; Sioux City. Pauiniel; Keokuk, Shimek. 



.2 E. PARVULUS Eno-ehn. Gray's Man., 2nd ed., 438 (1856). 



Wats, and Coult., Gray's Man., 6th ed., 556; Arthur, FL 

 Iowa, 31; Upham, Fl. Minn., 138; Beal and Wheeler, FL 

 Mich., 145. 



Rare or local. No. 786 of Arthur'' s Flora of lorca. but 

 without locality. 



