128 NATURAL HISTORY BULLETIN. 



during the months of June, July, and August. Our speci- 

 mens are from Winneshiek, Allamakee, Muscatine, and 

 Linn counties. Additional specimens in the State Univer- 

 sity herbarium are from Henry, Winnebago, Cerro Gordo, 

 Hancock, Dickinson, Emmet and Woodbury counties. 

 Prof. Bessey reports the species from Des Moines county 

 and Prof. Hitchcock from Story county. Prof. Fink says 

 the species probably occurs in Fayette county. 



Bessey, Contr. to the Flora of Iowa in Fourth Rep. Iowa Agr. Col., 

 p. 91, 1872; Arthur, Contr. to the Flora of Iowa, p. 5, 1876; Hitchcock, 

 Trans. St. Louis Acad, of Science, vol. 5, p. 483; Fink, Proc. Iowa 

 Acad, of Sciences, vol. 4, p. 83; Fitzpatrick, Proc. Iowa Acad, of 

 Sciences, vol. 5, p. 108; Manual of the Flowering Plants of Iowa, p. 4; 

 Barnes, Reppert and Miller, Proc. Davenport Acad, of Nat. Sciences, 

 vol. 8, p. 201. 



Ranunculus macounii Britton, Trans. N. Y. Acad. 

 vSci. 12:3. 1892. 



This species much resembles Ranunculus pennsylvanicus 



L. f. and in some respects R. septentrionalis Poir. Annual 

 or biennial; ascending or declined, hairy or somewhat his- 

 pid; stems 1-2 feet long, rarely rooting; leaves 3-divided, 

 leaflets petiolulate, ovate or broadly oblong, cuneate, 

 mostly 3-parted or 3-cleft, or variously lobed or cleft, some- 

 what toothed; head of fruit oblong, achenes smooth, the 

 sharp straight beak about one-fourth their length. Ran- 

 unculus liispidus Hook. Fl. Bor. Am., vol. 1, p. 19, 1829; 

 not R. hispidus Mx. Fl. Bor. Am., vol. 1, p. 321, 1803. 



The Iowa forms of this species are not well understood. 

 All the material which has fallen into our hands is in the 

 flowering stage. Prof. Fink who first reported the species 

 from Iowa sends us a specimen from Fayette county. 

 While we have referred it here we are by no means sure 

 that our reference is correct. Specimens from Henry, Em- 

 met and Pottawattamie counties which we have examined 

 may belong here. Britton and Brown directly refer this 

 species to Iowa and remark that their description probably 

 includes two or more species. While this uncertainty ex- 



