RANUNCULACEAE 327 



6. R. micranthus Nutt. In rocky woods: Newf., Lab. and N. S. 



to Manitoba, Fla., Ark. and Col. 



Conn. Throughout the state, more common along the Connecticut 

 River than elsewhere. 



N. Y. Common along the Hudson to Putnam Co., thence ap- 

 parently decreasing northward. Apparently unknown on L. I. 

 and S. I. 



N. J. Not uncommon along the Palisades in Bergen and Hudson 

 counties, also in Essex, Sussex and Hunterdon Counties; un- 

 known elsewhere. 



Pa. From Bucks Co. 



Apparently most common on trap rock in Conn, and N. J.; 



otherwise its distribution is little understood. 



7. R. allegheniensis Britton. Mountains: Vt. and Mass. to Va. 



and N. Car. 



Known only from Litchfield Co., Conn., there very rare. Re- 

 ported, but not definitely known from the Catskills. 



8. R. sceleratus L. In swamps and ditches, and on shores : N. 



B. to Fla., Kan. and Minn. Also in Eu. and Asia. 



Conn. Not uncommon along the coast, decreasing inland. 



N. Y. Common on L. I. and S. I., decreasing up the Hudson 



Valley. 

 N. J. Common along the coast, decreasing inland; not reported 



from the pine-barrens. 

 Pa. Chester and Delaware counties. 



More common near the junction of salt and fresh water than 

 elsewhere. 



9. R. recurvatus Poir. In woods: N. S. to Manitoba, south to 



Fla. and Mo. 

 Throughout the range except in the pine-barrens, there wanting. 



10. R. acris L. In fields and meadows: Northern States and 

 Canada. Naturalized from Europe. 

 Common throughout the range. 



.11. R. bulbosus L. In fields and along roadsides: Eastern States. 

 Naturalized from Europe. 

 Common everywhere. 



12. R. pennsylvanicus L. f. In wet open places: N. S. to Ga. and 

 west to the Rocky Mts. and B. Col. 



