RANUNCULACEAE OF IOWA. 125 



served the species in Allamakee and Page counties. The 



State University herbarium contains in addition specimens 



from Scott, Lee, Henry, Story, Mahaska, Pottawattamie, 



and Lyon counties. Prof. Pammel reports the species 



from Woodbury and Hamilton counties; Prof. Bessey from 



Poweshiek and Warren counties; and J. B. Rigg from Calhoun 



county. 



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

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

 Trans. St. Iyouis Acad, of Science, vol. 5, p. 483; Nag-el and Haupt, Proc. 

 Davenport Acad. Nat. Sciences, vol. 1. p. 154; Pammel, Proc. Iowa Acad, 

 of Sciences, vol. 3, p. Ill; Fink, Proc. Iowa Acad, of Sciences, vol. 4, p. 

 83; Fitzpatrick, Proc. Iowa Acad, of Sciences, vol. 5, p. 108 and p. 135; 

 Manual of the Flowering plants of Iowa p, 4; Rigg, Notes of the Flora 

 of Calhoun county, Iowa, p. 9; Halsted, Bull. Iowa Agr. Col., Nov. 1886, 

 p. 6, and Bull. 1888, p. 36; Barnes, Reppert and Miller, Proc. Daven- 

 port Acad, of Nat. Sciences, vol. 8, p. 201; Shimek, Flora of L,yon county 

 in vol. 10, Iowa Geol. Sur., p. 176. 



ft Leaves all lobed or divided . 



% Plant glabrous ; flowers small. 



Ranunculus sceleratus L. Sp. PI., p. 551. 1753. 



Annual; stem 6-20 inches high, glabrous, thick, hollow, 

 with acrid juice; root-leaves of 3-5 rounded lobes, others 

 3 -parted, cut and toothed, the upper nearly sessile, deeply 

 lobed or divided; lobes oblong or linear, obtuse, entire or 

 toothed, petals about as long as the sepals, pale yellow; 

 head of fruit oblong or cylindric, achenes mucronulate. 



This species occurs in wet ditches, flowering from June 

 until August, and is infrequent or rare within our limits. 

 There is a specimen in the State University herbarium 

 collected by G. B. Rigg in Calhoun county. Mr. Cratty 

 by letter reports the species common in Emmet county. 

 Messrs. Nagel and Haupt report the species from Scott 

 county; and Prof. Bessey from Story county. 



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

 p. 91; Arthur, Contr. to the Flora of Iowa, p. 5; Nagel and Haupt, Proc. 

 Davenport Acad, of Nat. Sciences, vol. 1, p. 154; Rigg, Notes on the 

 Flora of Calhoun county, la., p. 10. 



