GROSSULARIACEAE 357 



N. J. Common throughout the pine-barrens, decreasing in the 



area surrounding them, unknown elsewhere in the state; more 



common southward than elsewhere. 

 Pa. " Near Philadelphia," probably as an introduced plant, 



otherwise unknown. 



Tertiary, common on Beacon Hill, decreasing outside it: Cretac- 

 eous, scattered: Older Formations, o: 168-220 days. About sea 

 level. 



HAMAMELIDACEAE 



1. Hamamelis L. 

 1. H. virginiana L. In low woods: N. S. to Ont., Wise, Neb., 

 Fla. and Tex. 



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

 wanting; rare on the coastal plain of L. I. 



ALTINGIACEAE 

 1. Liquidambar L. 

 1. L. Styraciflua L. In woods: Conn, to Mo., Fla. and Tex., 

 southward to Mex. and Guatemala. 

 Conn. Fairfield Co., near the coast. 



N. Y. Common on L. I.andS. I.; frequent in the Bronx, and up 

 the Hudson Valley to the southern end of the Highlands, un- 

 recorded northward. 

 N. J. Local north of the coastal plains, increasing and common 



southward, but wanting in the pine-barrens. 

 Pa. Bucks, Delaware and Chester counties. 



Tertiary, common, except on Beacon Hill, there wanting: Cre- 

 taceous, common: Older Formations, scattered. Predominating 

 south of the moraine. 143-220 days. Sea level-870 ft. 



GROSSULARIACEAE 



Plants without nodal spines, fruit disarticulating from the pedicel 



(currants). I. Ribes. 



Plants with nodal spines; fruit not disarticulating from the pedicel 



(gooseberries). 2. Grossularia. 



i. Ribes L. 



Plants with spines or prickles. I. R. lacuslre. 



Plants without spines or prickles. 



Ovary with sessile glands. 2. R. nigrum. 



Ovary without glands or the glands stalked. 



