BEAL ON MICHIGAN FLORA. 79 



ATRAGENE L. 



1009. A. Americana Sims. Purple Virgin's Bower. Clematis verticillaris DC. Nor- 

 way, S. M. Tobey. Rare. 



RANUNCULUS L. 



*1010. R. abortivus L. Small-flowered Crowfoot. Common. Th. 



*1011. R. acris L. Tall Crowfoot or Buttercup. "Classed by Hooker f. as indig- 

 enous." S. Watson. So. Haven; Macomb Co.; Flint; Huron shore, Winch. Cat.; and 

 Lake Superior. Gradually spreading over the State. Infrequent. Th. 



1012. R. bulbosus L. Bulbous Crowfoot or Buttercup. Sault Ste. Marie, Porter; 

 Bay Co., G. M. Bradford; Keweenaw Co., O. A. Farwell. A bad weed in meadows. 



*1013. R. delphinifolius Torr. Yellow Water-Crowfoot. R. multifidus Pursh. Ponds 

 and slow streams. Perennial by rooting from the nodes of floating stems after flower- 

 ing. The young plants rooting in mud are pubescent so far as observed in many parts 

 of the State. Common. Th. 



*1014. R. fascicularis Muhl. Early Crowfoot. Flowers sometimes double or with 

 reversion of essential organs to leaves. Ann Arbor, C. A. Davis; Berrien Co., H. S. 

 Pepoon. Hills and sandy plains. Infrequent from the center of the State southward. 



1015. R. Lapponicus L. Lapland Buttercup. Thunder Bay, Lake Superior, Britton 

 & Brown. 



1016. R. Macounii Britton. Macoun's Buttercup. R. Mspidus Hook. Lake Supe- 

 rior, Britton and Brown. 



1017. R. micranthus Nutt. Rock Crowfoot. R. obortivus micrantJius A. Gary. 

 North shore of Lake Superior, Agassiz; Keweenaw Co., O. A. Farwell. 



1018. R. obtusiusculus Raf. Water Plantain Spearwort. R. ambigens S. Wats. 

 Dr. Lyons. St. Clair Co., A. F. Foerste and W. S. Cooper. 



1019. R. ovalis Raf. Prairie Crowfoot. R. rhomboideus Goldie. On light sand; 

 Muir and Palo in Ionia County; Lake Superior, Can. Cat. Prairies, Mich. A. Gray. 

 Rare. 



1020. R. Pennsylvanjcus L. f. Bristly Crowfoot. Frequent on low land. Th. 



1021. R. Purshii Richards. Pursh's Buttercup. Topinabee, S. H. Camp; Chandler's 

 Falls, Atlanta; Alpena, C. F. Wheeler. 



*1022. R. recurvatus Poir. Hooked Crowfoot. Woods in rich soil. Common. Th. 



*1023. R. repens L. Creeping Buttercup. Port Huron, C. K. Dodge; Rochester, 

 W. A. Brotherton and O. A. Farwell; Montreal River, Keweenaw Co., 0. A. Farwell; 

 in the lawn Agricultural College, C. F. Wheeler. 



1024. R. reptans L. Creeping Spearwort. R. Flammula reptans E. Meyer. In- 

 frequent except northward, and not seen in the center of the State. Sandy shore of 

 Black Lake, Cheboygan Co., B. & K.; Belle Isle, O. A. Farwell; Algonac, W. S. Cooper. 



1025. R. reptans intermedius (Hook.) Torr. & Gray. R. Flammula intermedius 

 Hook. Keweenaw Co., O. A. Farwell. 



*1026. R. sceleratus L. Cursed Crowfoot. Ditch Crowfoot. Ditches and low ground. 

 Exceedingly variable, stems sometimes two inches in diameter. Frequent. Th. 

 *1027. R. septentrionalis Poir. Swamp Buttercup. Frequent and variable. Th. 



BATRACHIUM S. F. Gray. 



*1028. B. divaricatum (Schrank) Wimm. Stiff Water-Crowfoot. Ranunculus cir~ 

 cinatus Sibth. Bear River, Petoskey, E. J. Hill; Ann Arbor, Allmendinger Cat.; Huron 

 R., Lyons. The common form in L. P. Frequent. Th. 



1029. B. trichophyllum (Chaix.) Bossch. White Water-Crowfoot. Ranunculus 

 aquatilis tricnopJiyllus A. Gray. Common. Not observed in E. and S. Black Lake, 

 Cheboygan Co., B. '& K.; Keweenaw Co., 0. A. Farwell, St. Clair River and Lake, 

 W. S. Cooper. 



OXYGRAPHIS Bunge. 



1030. 0. Cymbalaria (Pursh.) Prantl. Seaside Crowfoot. Ranunculus Cymbalaria 

 Pursh. South Haven, L. H. Bailey. Rare. 



THALICTRUM L. 



*1031. T. dioicum L. Early Meadow-Rue. Common along river banks. Th. 



1032. T. polygamum Muhl. Tall Me*adow-Rue. Keweenaw Co., 0. A. Farwell. 

 *1033. T. purpurascens L. Purplish Meadow-Rue. Wet meadows. Common. Th. 



