Ranunculaceee. 
53 
Anemonella, Spach. 
9. A. thalictroides , Spach. Rue-anemone. 
Wooded pasture south of Madison. Local. 
Thalictrum. Tourn. Meadow-rue. 
10. T. dioicum , L. Early meadow-rue. 
Rich woods. Common. 
11. T. purpurascens, L. Purplish meadow-rue. 
Dry uplands. Common. 
Ranunculus, L. Crowfoot. Buttercup. 
12 R. aquatilis , L. var. trichophyllus, Gray. 
Common in the shallower parts of the lakes and in 
sluggish streams. 
13. R. multifidus, Pursh. Yellow water-crowfoot. 
Common throughout the region. 
14. R. rhomboideus , Goldie. 
Thinly wooded uplands south of Madison. 
15. R. abortivus , L. Small-flowered crowfoot. 
Common everywhere. 
16. *i?. sceleratus, L. Cursed crowfoot. 
Common in wet land that has been cultivated or 
broken. 
17. R. recurvatus, Poir. Hooked crowfoot. 
Of occasional occurrence throughout the region. 
18. R. fctscicularis , Muhl. Early crowfoot. 
Common on dry hillsides. 
19. R. septentrionalis , Poir. 
Distributed throughout regicn. Not abundant. 
20. *R. repens , L. 
Same distribution as R. septentrionalis. Much 
rarer. 
21. R. Pennsylvanicus , L. f. Bristly crowfoot. 
Common in low wet lands. 
ISOPYRUM, L. 
22. I. biternatum , Torr. & Gray. 
Lakes Wabesa and Kegonsa. Local 
