COMPOSITAE 609 



4. A. glomeratus (Nees.) Bernh. In moist thickets, swamps or 



ravines: Me. to N. Y. and Va. 



Known, in our area, only from near New Baltimore, Greene Co., 

 N. Y. and Montague, Sussex Co., N. J., both north of the moraine, 

 with a growing season of about 138-160 days, and both localities 

 with underlying limestone formations; and as reported from Cats- 

 kill Junction, N. Y. 



5. A. Schreberi Nees. (A. curvescens Burgess). In woods: New 



Eng. to Mich, and Va. 



Conn. Throughout, but rare. 



N. Y. Roslyn, L. I., rare on S. I., thence increasing northward; 



nowhere common. 

 N.J. Burlington, Union, Hudson, Passaic, Bergen and Morris 



counties. 

 Pa. Pike, Monroe, Bucks and Northampton counties. 



Distribution not fully understood, but usually increasing north- 

 ward. 



6. A. macrophyllus L. {A. ianthinus, violaris and multiformis, 



Burgess). In shaded places, usually in moderately dry soil: 

 Canada to Minn, and N. Car. 



Common nearly throughout the range, except the pine-barrens, 

 there wanting; apparently rare on the south side of L. I., and on 

 the coastal plain of N. J. A form approximating A. roscidus 

 Burgess has been collected in Northampton Co., Pa. 



7. A. cordifolius L. Woods and thickets: N. B. to Minn., Ga. 



and Mo. 



Conn. Common everywhere, 



N. Y. Occasional on the south side of L. I., more common on 



the north side and on S. I., thence increasing and common 



northward. 

 N. J. Rare in Ocean Co., northwest of the pine-barrens, thence 



unknown to Somerset and Mercer counties, thence increasing 



northward. 

 Pa. Throughout the area, increasing northward. 



Tertiary, o: Cretaceous, rare or perhaps wanting, except as an 

 adventive: Older Formations, increasing northward. 117-220 days. 

 Sea level-4,020 ft. 



A. cordifolius polycephalus Porter is sometimes found with the type, especial'y in 

 Conn, and Pa.; rare. 



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