138 



NATURAL HISTORY BULLETIN. 



2. A. dracontium [Linn.) Schott. Melet. (1832). 



Wats, and Coult., Gray's Man., 6th ed., 549; Upham, FL 

 Minn.. 134; Arthur. Fl. Iowa, 30; Hitchcock, Ames FL, 521. 



Low damp woods; less common than the preceding species. 



Decorah, Hohuay ; Ames, Hitchcock; Iowa City, Macbride; 

 Charles City, Arthur; Muscatine, Reppert; Keokuk, Rolfs. 



Note. — Calla paiustris Linn., Spec. Ed. 2, 1373(1762), has been found just 

 outside our limi.s in southeastern Minnesota. Ii may be looked for in the 

 northeastern part of our state. 



SYMPLOC ARPUS Salisb. Nutt., Gen. L, 105 (1818). 

 1. S. fcetidus Salisb. Nutt., Gen. I., 105 (1818). 



Wats, and Coult.. Gray's Man., 6th ed., 551; Arthur, FL 

 Iowa, 30; Macmillan, Metas. Minn. VaL, 131. 



A homely plant with a most disagreeable odor. Bogs and 

 very moist ground; eastern and southern portions of the state. 

 Rather rare. 



Decorah, Holzvay ; Muscatine county, Macbride, Rcppei't. 



ACORUS Linn. Spec. Pi. (1753). 



1. A. calamus Linn. Spec. PL 324 (1753). 



Wats, and Coult., Gray's Man., 6th ed., 551; Arthur, FL 

 Iowa, 30; Upham, FL Minn., 135. 



Well distributed throughout the state. Usually only a 

 small percentage of the plants flower. Marshes, June, July. 



Decorah, Holzvay; Iowa City and Cedar Rapids, Macbride; 

 Emmet county, Cratty; Ames, Hitchcock; Hancock county, 

 Arthur; Jewell Junction, Rolfs; Winnebago county. Shimek* 



LEMNACE^. 

 LEMNA Linn. Spec. PL, (1753). 



1. L. minor Linn. Spec. PL 970 (1753). 



Wats, and Coult.. Gray's Man., 6th ed., 553; Arthur, FL 



