compositae 593 



Conn. Frequent along the coast, decreasing inland. 



N. Y. Common on L. I. and S. I., decreasing thence to Yonkers, 



unknown northward. 

 N.J. Rare and local in the north, increasing southward, especially 



in the pine-barrens. 

 Pa. Monroe, Northampton, Bucks, Montgomery, Delaware and 



Chester counties. In Montgomery and Delaware counties a 



pointed-leaved, sharp-toothed form, Saundersii Porter had been 



collected. 



Tertiary r , common: Cretaceous, less common: Older Formations, 

 rare and scattered. 138-220 days. Sea level-1,180 ft. 



9. E. rotundifolium L. In dry soil: Mass. and Pa. to Fla., Ky. 

 and Tex. 



N. Y. Reported from but doubtfully on L. I., not infrequent on 



S. I., unknown elsewhere. 

 N. J. Rare in Essex, Middlesex and northern Monmouth counties, 



increasing southward, especially in the pine-barrens. 

 Pa. Montgomery and Delaware counties. 



Tertiary, common: Cretaceous, less common: Older Formations, 

 decreasing and wanting northward. Rare north of the moraine. 

 162-220 days. About sea level. 



10. E. pubescens Muhl. In dry soil: N. H. and Mass. to Pa., 



W. Va. and Fla. 



Conn. Rare at Stratford and East Haven, otherwise confined to 



the Connecticut River Valley. 

 N. Y. Unknown on L. I., not very common on S. I., unknown 



elsewhere. 

 N. J. Orange Mts.; common on the coastal plain. 

 Pa. Serpentine barrens near Nottingham, Chester Co. 



Tertiary, common: Cretaceous, common: Older Formations, 

 more common in the predominately Triassic valley of the Con- 

 necticut River than elsewhere. 160-220 days. About sea level. 



11. E. perfoliatum L. In wet places: N. B. to Man., Fla., Neb. 



and Tex. 



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

 wanting. The form truncatum A. Gray, with separated and truncate 

 leaves is found with the type. 

 39 



