COMPOSITAE 623 



Leaves denticulate or entire, rays 1.8-2.5 cm. long. 3. R. fulgida. 



Leaves dentate or laciniate, rays about 3.5 cm. long. 4. R. speciosa. 

 Disk elongated or cylindric, yellowish or gray; lower leaves pinnately 



divided or pinnatifid. 5. R. laciniata. 



1. R. triloba L. In moist soil: Conn, to Ga., west to Mich., Kan. 



and La. 



Conn. Rare as an adventive from the west. 



N. Y. Rare on L. I. and S. I., probably on both islands only as an 



adventive; increasing and perhaps native northward. 

 N. J. Sussex and Union counties, apparently adventive. 

 Pa. Northampton and Delaware counties. 



With the aspect of an adventive in most parts of our range, 

 possibly native in the upper Hudson Valley. 



2. R. hirta L. In fields: Que. to western Ont. and the N. W. 



Terr., south to Fla., Colo, and Tex. 



Common throughout the northern part of the area as a field 

 weed, decreasing southward, naturalized from the west. 



3. R. fulgida Ait. In dry soil: N. Y. and Pa. to Ga., west to Mo. 



and Tex. 



N. J. Known only from Somerset and Hunterdon counties. 



Pa. Lehigh, Bucks, Montgomery, Delaware and Chester 



counties. 



A rare and local species, perhaps more widely distributed than 

 is now apparent. 



4. R. speciosa Wenderoth. In moist soil: Conn, to Mich., south 



to Ala. and Ark. 



Conn. Occasional as an adventive. 

 N. Y. Formerly on S. I., perhaps introduced. 

 N. J. Cumberland Co., adventive. 



Pa. Chester, Philadelphia and Carbon counties, perhaps native 

 in the latter. 



5. R. laciniata L. In moist thickets: Que. to Man. and Mont., 



south to Fla., Kan. and N. Mexico. 



Locally common throughout the range, except in the pine- 

 barrens of N. J. and east and south of them, and on the coastal 

 plain of L. I., there unknown. 



R snblnmentosa Pursh has been collected in Conn, as a waif. 



