1-2 NATURAL HISTORY BULLETIN. 



L O P H O T O C A R P U S T. Diirand. Index Gen. 

 PI.. 627 (1888). 



I. L. CAi.YCiNus {EngeJiii .\ y. G. Smith in ]\Iem. Torr. 

 Bot. Club, v., 25 (1894). 



Sagittaria calycimis Engelm. in Torr.. Bot. Mex. Bound., 

 212 (1858). 



Wats, and Coult.. Gray's Man., 6th ed.. 556; Cont. to U. 

 S. Nat. Herb.. II., 455. 



Not before reported from the State and very rare within 

 our hmits. 



Muscatine, margin of a pond just above the city. Retpei't. 



HYDROCHARIDACEiE. 

 E LODE A Richard. Mich.. Fl. Bor. Am., I., 20 (1803). 



I . E. CANADENSIS Rich. aud Michx. Fl. N. Am., I., 20 ( 1803) . 

 Anacharis canadensis Planch. Ann. Mag. and Nat. Hist., 

 2nd Sen, L. 86 (1848). 



Wats, and Coult.. Gray's Man., 6th ed., 496; Arthur, Fl. 

 Iowa, 31: Upham. Fl. Minn.. 139. 



Frequent throughout the State in slow-flowing streams. The 

 staminate flowers are ver}' rarely seen. A few were collected 

 bv the writer near Armstrong, in July, 1882. 



Emmet countv. Cratty; Iowa City. Macbridc; Decorah, 

 Holway; Ames and Charles Cit3\ Arthur ; Ft. Dodge, Bessey; 

 Spirit Lake. Hitchcock: Muscatine. Rcppert : Hancock county 

 and Cedar Rapids. Shiinck. 



VALLISXERIA Linn. Sp. PI. (1753). 

 I. V. SPIRALIS Linn. Sp. PI.. 1015 (1753). 



Wats, and Coult., Grab's Man.. 6th ed.. 496; Arthur, Fl. 

 Iowa. 31; Macmiilan, Metas. Minn. Val., 46. 



Rather rare in ponds and lakes, or slow streams. August. 



Independence, Bluffton and Iowa City, Machride; Iowa 

 Lake. Emmet county, Cratty; Ames and Storm \^-Ak.^, Bessey ; 

 Mud Lake, Story county, Hitchcock; Mason Cit\\ Shimek, 



