330 RANUNCULACEAE 



Conn. Rare along the coast and up the Thames. 



N. Y. Rare on L.I. 



N. J. Local along the coast from Cape May to Monmouth 



counties. 



Apparently more common near the sea-coast than elsewhere. 



22. Thalictrum [Tourn.] L. 



Filaments filiform or slender, not wider than the anthers. 



Flowers strictly dioecious: lower stem leaves distinctly petioled. I. T. dioicum. 

 Flowers polygamous; stem leaves almost sessile. 



Leaves pubescent, but not glandular. 2. T. dasycarpiim. 



Leaves glandular pubescent. 3. T. revoluluni. 



Filaments spatulate, often wider than the anthers; plant not glan- 

 dular. 4. T. polygamum. 



i. T. dioicum L. In woods; Lab. and Anticosti to Ala., west to 

 Sask. and Mo. 



Throughout the area except the pine-barrens and the coastal 

 plain of L. I. there wanting, and rare in the region surrounding 

 the N. J. pine-barrens; always increasing northward. 



2. T. dasycarpum Fisch. & Lall. (T. purpurascens of Britton's 



Manual, in part). Alluvial soil: Conn, to Sask. and south- 

 westward. 



Conn. Franklin and Southington. 

 N. J. Clifton, Bergen Co. 



3. T. revolutum DC. (T. purpurascens of Am. Auth. not of 



L.). Rocky upland woods, and on river banks: E. Mass. 



to N. J., southwestern Ont., Ind. and N. C. 



Conn. Common near the coast, decreasing inland. 



N. Y. Not very common on L. I. and S. I., increasing northward 



but not known from the Catskills. 

 N. J. Unknown in the pine-barrens; rare and local in the region 



surroui ding them, thence increasing but not common northward. 

 Pa. Northampton, Delaware and Chester counties. 



4. T. polygamum Muhl. In fields and meadows: Lab. and Que. 



to Fla., west to Ohio. 



Common throughout the area, except in the pine-barrens, there 

 wanting. 



The following, heretofore credited to the area, are to be excluded: Isopyrum 

 bilematum (Raf.) T. & G., Xanthorrhiza apiifolia L'Her., and Adonis annua L. I can 

 find no evidence that any of these are established within the range. Nigella damascena 

 L. has been reported from Conn, as an escape. 



