RANUNCULACEAE 319 



N. J. Reported from Warren Co. in the valley of the Delaware 



River, and from Sussex Co. 

 Pa. Bucks, Berks, Montgomery, Philadelphia, Delaware and 



Chester counties. 



Tertiary, o: Cretaceous, perhaps, but doubtfully in Bucks Co., Pa. 

 Older Formations, rare and local. 118-220 days. Sea level- 

 2,000 ft. 



2. Caltha [Rupp.] L. 



Leaves cordate, generally with a narrow sinus; flowers 2.5-4 cm. wide. '■ £". paluslns. 

 Leaves flabelliform, with a broad sinus; flowers 1-2.5 cm. wide. 2. C. flabellifolia 



1. C. palustris L. In swamps and meadows: Newf. to S. Car. 



and Neb. 



Common throughout the range in favorable situations, except in 

 the pine-barrens of L. I. and in those of N. J. and east and south 

 of them. 



2. C. flabellifolia Pursh. In cold mountain springs, sometimes 



in streams: Pa: and N. N. J. and N. Y. to Md. 



N. Y. Cool streams and springs of Delaware Co.; at Woodlawn, 



N. Y. City and West Hampton, L. I.* 

 N. J. Sussex and Bergen counties. 

 Pa. Monroe Co. 



Tertiary, o: Cretaceous o. Older Formations increasing but not 

 common northward. 11 7-1 83 days. Sea level-3,Sooft. South of 

 the moraine only on L. I. at a single station. 



The reported occurrence of C. radicans Forst. at Woodlawn, N. Y. City and West 

 Hampton, L. I., is an error. The plants upon which the statement was based are C. 

 flabellifolia. C. radicans is a circumborcal species known in America only from Alaska. 



3. Trollius L. 



1. T. laxus Salisb. In swamps: N. H. (?), Conn, to Del., west 



to Mich. 



Conn. Near Cornwall and Falls Village, Canaan. 



N. Y. Rare and local in Westchester and Rockland counties, 

 formerly in Bronx Co., otherwise unknown, except for an un- 

 verified record from Queens Co., L. I. 



N. J. Not very common in Sussex, Morris, Passaic, Warren, 

 Bergen, and Hudson counties. 



Pa. Monroe, Northampton and Bucks counties. 



Tertiary, 0: Cretaceous, 0: Older Formations not very common. 



South of the moraine only in Pa. 138-170 days. 413-1,800 ft. 



* See Introduction paragraph 41. 



