Iowa Academy of Scie>;ck. 



t'lAiz: II 



^'ympllaea tnberosa of McGregor. Iowa. 1. sepal; -. ,.etal of se.cnd row, 

 tl IS. sepal; 4, petal of second row, FI. 3; 5, stipule; 6, section of ovary. 

 All natural size. 



