Ranunculus RANUNCULACEAE Ranunculus 



R. laxicaulis (T. & G.) Darby. (R. ohlongifoUus of authors, not 

 Ell. See Fernald: Rhodora 41, 541-542. 1939.) 



In shallow water, rooting in mud; infrequent on the Coastal 

 Plain; Worcester County and northward to southern New Castle 

 County, where it appears to reach its northern Umit. Late May, 

 mid-June. 



R. pusillus Poir. 



Frequent in ponds, ditches and low woods; along the Susque- 

 hanna River in the Piedmont, and southward on the Coastal Plain 

 to Talbot County: ditch 2}4 mi. s. w. of Easton, M. T. Travis, 426, 

 16 April 1938 (P). May. 



R. sceleratus L. Cursed Crowfoot. 



Common throughout, in meadows, ditches and tidal mud. 

 Mid-April to June. 



R. abortivus L. Small-flowered Crowfoot. 



Common on rocky hillsides of the Piedmont, and in sandy soil 

 of the Coastal Plain. April, May. 



R. recurvatus Poir. Wood Crowfoot. 



Frequent in rich woods. Piedmont, and Coastal Plain southward 

 to Talbot County (Earle). May. 



R. septentrionalis Poir. Swamp Buttercup. 



Infrequent in wet places. New Castle and Cecil Counties. Late 

 April, May. 



R. hispidus Mx. 



Frequent on wooded hillsides of the Piedmont; rare on the 

 Coastal Plain: sandy woods 1}4 mi. e. of Wattsville (Ac), R. R. 

 Tatnall, 4443, 28 April 1940 (T). Late April, May. 



R. repens L. Creeping Buttercup. 



Infrequent, in ditches and low, grassy places, Sussex, Talbot and 

 Accomac Counties. May, June. 



R. pensylvanicus L. f . 



One collection: "roadside, Red Lion Creek" (NC), E. Tatnall, 

 4 July 1887 (A). Late June, July. 



[ 121 ] 



