RANUNCULACEAE OF IOWA. 121 



''Sandy bottom lands of Cedar river, Salisbury bridge re- 

 gion, Lake township, and at Moscow lake, Moscow where 

 it grows with Anemone caroliniana Walt. The Anemone 

 occupying slight ridges while the Myosurus grows in the 

 shallow depressions where the soil is more damp or wet at 

 times, May 8th, 1894. No. 762. Muscatine county. 

 These specimens from Moscow." 



The species is credited to Scott county by Prof. Arthur 

 in his Contributions to the Flora of Iowa, p. 5, 1876; also 

 by Barnes, Reppert and Miller in their Flora of Scott and 

 Muscatine counties. 



The range of this species is from southern Ontario to 

 Illinois, Kentucky and Florida. It is said to occur on the 

 Pacific coast and in central Europe. 



Arthur, Contr. to the Flora of Iowa, p. 5, 1876; Fitzpatrick, Manual 

 of the Flowering Plants of Iowa, p. 5; Barnes, Reppert and Miller, 

 Proc. Davenport Acad. Nat. Sciences, vol. 8, p. 200. 



RANUNCULUS L. Sp. PL, p. 548. 1753. 

 Annual or perennial herbs, with alternate, simple, entire, 

 lobed, divided or dissected leaves, and white or yellow, soli- 

 tary or sometimes corymbed flowers. Sepals 5, deciduous. 

 Petals 5, rarely more or less, sometimes minute, with a 

 nectariferous pit or scale at the base inside. Achenes 

 many, usually flattened, pointed, capitate or spicate. 



* Aquatic. 



Ranunculus delphinifolius Torr. Eaton, Man. Ed. 

 2, p. 395. 1818. Yellow Water Crowfoot. 



Stem floating or immersed, sometimes emersed; leaves 

 repeatedly 3-forked, the ultimate divisions long, capillary; 

 out of water the leaves are often reniform, lobed or toothed 

 or else the divisions are shorter and linear; petals 5-8, 

 bright yellow; achenes callous-margined, with a straight 

 beak which is one-half their length or more. Ranunculus 

 multifidus Pursh, Fl. Am. Sept., p. 736, 1814, a name pre- 

 occupied by Forskal in 1775 for an Arabian species. 



