IOWA ACADEMY OP SCIENCES. 
185 
Onagrace^. 
Ludioigia polycarpa Short & Peter. Ringgold and Taylor 
counties. Shallow lakes; frequent. 
Gaura hiennis L. Fremont county. Fields and waste 
places; common. By a clerical error G. coccinea Nutt, was 
given for this species in the last Academy report. The local- 
ities for southern and northeastern Iowa should be credited to 
this species. 
G. parviflora Dough Fremont county. Base of loess hills 
and in bottoms ; frequent. 
Oenothera hiennis L. Ringgold and Fremont counties. 
Fields; common. 
CircGea lutetiana L. Page, Ringgold, Fremont, and Potta- 
wattamie counties. 
CUCURBITACE^. 
Echinocystis lohata. Taylor, Page, and Fremont counties. 
Umbellifer^. 
Cicuta maculata L. Ringgold, Taylor, and Fremont counties. 
Moist places; common. 
Tiedemannia rigida Coult. & Rose. Ringgold county. Wet 
sloughs; frequent. 
Heracleum lanatum Mx. Union and Pottawattamie counties. 
Rich woods; common. 
Pastinaca sativa L. Decatur, Clarke, Union, Adams, Ring- 
gold, Taylor, Page, Fremont, and Johnson counties. Waste 
places; common. 
Pimpfinella integerrima. Union county. Woods; frequent. 
Polytcenia nuttallii DC. Ringgold and Montgomery counties; 
prairies; a few specimens found. 
Cryptotcenia canadensis DC. Union, Ringgold, and Potta- 
awattamie counties; woods; common. 
Siam cicutcefolium Gmelin. Ringgold county; wet soil; fre- 
quent. 
Zima aurea Koch. Johnson and Page counties; low grounds; 
common. 
Osmorrhiza hrevisGjlis DC. Fremont county; woods; frequent. 
0. longistylis DC. Fremont county; woods; frequent. 
Eryngium yucccefolium Mx. Montgomery, Pottawattamie, 
Ringgold, Taylor, and Page counties; prairies; common. 
Sanicula marylandica L. Ringgold and Pottawattamie 
counties; woods; common. 
