ERICACEAE 489 



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

 Not south of the moraine. 1 17-168 days. Sea level-4,020 ft. 



3. A. lutea L. In dry woods: N. Y. and Pa. to Ga. and Tenn. 



This, the most widely cultivated of American azaleas, has never been collected from 

 the range as a wild plant since its original discovery in Ulster Co., N. Y. In view of the 

 fact that its extreme northern limit as a wild plant now appears to be in Franklin and 

 Somerset counties in Pa., its original collection within our range may have been from a 

 cultivated specimen. 



4. A. viscosa L. In swamps: Me. to Ohio, Fla. and Tex. 



Common throughout the range as to the type, and scarcely less 

 so as to the forms hispida, glanca, and nitida. 



3. Rhodora L. 

 1. R. canadensis L. In bogs and on wet hillsides: Newf. to 

 N. J., Que., central N. Y. and Pa. 

 Conn. Very rare near the coast, increasing northward. 

 N. Y. Reported from Westchester Co., otherwise unknown. 

 N. J. Morris and Sussex counties. 

 Pa. Monroe and Lackawanna counties. 



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

 Not south of the moraine. 1 17-160 days. 500-4,040 ft. 



4. Rhododendron L. 

 1. R. maximum L. In woods and along streams: N. S. to Ont., 

 Ohio and Ga. 

 Conn. Litchfield, Tolland and New London counties, increasing 



northwestward. 

 N. Y. Known only from the Highlands of the Hudson northward; 



formerly on S. I. and reported as formerly at Inwood. 

 N. J. Very rare in the region of glacial terraces along the Delaware 



in Camden and Burlington Co., thence increasing northward, 



especially in the valley of the Delaware. 

 Pa. Throughout the range, increasing northward. 



Tertiary, 0: Cretaceous, very rare along the drainage of the 

 Delaware River: Older Formations, increasing northward. 117-220 

 days. Sea level-4,020 ft. 



5. Dendrium Desv. 

 1. D. buxifolium (Berg.) Desv. In damp sandy pine-barrens: 



N. J. 



