620 COMPOSITAE 



2. G. Helleri Britton. Fields and woods, N. Y. and N. J. to Ky. 



and Fla. 



N. J. Lakewood and Forked River, Ocean Co. 



3. G. decurrens Ives. In dry places: N. S. to Pa., west to 



western Ont., Mich, and B. Col., south in the Rocky Mts. 



to Ariz. 



Conn. Rare, and scattered over most of the state. 



N. Y. Unknown on L. I. or S. I., rare in Westchester Co., in- 

 creasing but not common northward. 



N. J. Known only from Warren, Morris, Sussex, and Essex coun- 

 ties, rare. 



Pa. Luzerne, Carbon, Lackawanna, Monroe and Northampton 

 counties. 

 Tertiary, 0: Cretaceous, o: Older Formations, rare and local 



northward. Not south of the moraine. 1 18-190 days. Sea 



leve 1-3,900 ft. 



4. G. uliginosum L. In damp soil: Newf. to Va., west to Ont., 



Minn, and Ind. Native of Europe. 



Throughout the range, except in the pine-barrens, and south of 

 them, there unknown; always increasing northward; mostly with 

 the appearance of a weed. 



5. G. purpureum L. In dry sandy soil : eastern Me. to Fla., west 



to Pa., W. Va., Ky., Kan., Tex. and Mex. Also on the 

 Pacific coast and in S. Am. 



Scattered and local over most of the range; more common near 

 the coast. 

 G. luteo-album L. and G. palustre Nutt. have been recorded as waifs. 



26. Inula L. 

 1. I. Helenium L. Along roadsides and in fields: N. S. to Ont. 

 and Minn., south to N. Car. and Mo. Naturalized from 

 Europe. 



Occasional as an adventive in most parts of our area, except 

 the pine-barrens 



/. dysenterica L. and I. pidicaria L. have been recorded as waifs. 



Tribe 5. Heliantheae 



Disk-flowers perfect, but sterile. 



Achenes thick, short, not flattened. 27. Polymnia. 



Achenes flattened. 28. Silphium. 



