IOWA ACADEMY OP SCIENCES. 
83 
tion or prove helpful to the botanists of other parts of Iowa, I 
shall feel well rewarded for the many days spent in collecting 
and studying the plants and in the final preparation of this 
paper. 
LIST OP SPECIES. 
RANUNCULACE^. 
Clematis virginiana L. Banks and low thickets, infrequent. 
Anemone patens L , var. nuttalUana Gray. High prairies, 
common 
A. caroUniana Walt. Prairies, rare. 
A. cylindrica Gray. Woods, frequent. 
A. pennsylvanica L. Low prairies, common. 
A. nemerosa L. Dry woods, common. 
Hepatica acutiloha D. C. Woods, common. H. triloha Chaix 
is frequently reported here, but does not occur. 
Anemonella thalictroides Spach. Woods, abundant. 
Thalictrum dioicum L. Woods, common. 
T. purpurascens L. Low prairies, infrequent. 
Ranunculus circinatus Sibth. Ponds, probably rare. The 
leaves are sessile or nearly so, have stipules and are more 
rigid than those of the next. 
R. aquatilis L., var. tricJiopliyllus Gray. Ponds, infrequent. 
Coll. Mr. R. B. Wylie. 
R. multifidus Pursh. Ponds, rare. 
R. rhomboidens Goldie. Prairies, frequent. 
R. abortivus L. Low open woods, common. 
R. fascicularis Muhl. High prairies and open woods. Com- 
mon. 
R. septentrionalis Poir. Borders of swamps; infrequent. 
R, hisjoidusKook. Woods, apparently frequent; but probably 
R. repens L. or R. pennsylvanicus L. occurs and has been con- 
fused with the above. Not before reported in Iowa. 
Isopyrum biternatum Torr. and Gray. Low woods, frequent. 
Galtlia palustris L. Wet ground, infrequent. 
Aquilegia canadensis L. Along blufis, frequent. 
Delphinium exaltatum Ait. Low prairies, rare. 
D. ajacis L. Sparingly escaped. 
Actcea spicata L. var. rubra Ait. Woods, frequent. 
A. alba Bigel. Woods along bluffs, rare. 
Hydrastis canadensis L. Rich woods, rare. 
