PINACEAE 71 



N. Y. Otis Summit, Greene Co. Inwood ( N. Y. C.) record 



unverified. 

 Pa. Wayne and Luzerne counties. 



Tertiary, o: Cretaceous, o: Older Formations, not rare. 123-143 

 days. 685-1,723 ft. 



3. P. virginiana Mill. In rocky or sandy soil: L. I. (?) to S. Car., 



Ala., southern Ind. and Tenn. 



N. Y. West side of S. I.; L. I. record unverified. 



N. J. Milford, Hunterdon Co., Riegelsville, Warren Co.; common 



along the edges but rare within the pine-barrens. 

 Pa. Chester, Bucks, Montgomery, Northampton, Carbon and 



Lehigh counties. 



Tertiary, rare: Cretaceous, common: Older Formations, limited to 

 eastern Pa. and the N. J. stations. Not north of the moraine 

 except on S. I. 175-189 days. Sea level-439 ft. 



4. P. echinata Mill. In sandy or clayey soil: southern N. Y. to 



Fla., 111., Kansas and Texas. 



N. Y. Tottenville, Giffords, and New Dorp, S. I.; also near the 



mouth of the Croton River (according to A. K. Fisher). 

 N. J. Middlesex, Burlington, Cumberland, Atlantic, Ocean and 



Monmouth counties; common along the edges but decreasing 



within the pine-barrens. 



Tertiary, scattered: Cretaceous, common: Older Formations, o. 

 Not north of the moraine. 175-189 days. About sea level. 



5. P. pungens Mill. In rocky or loose soil: Western N. J. and 



central Pa. to Ga. and Tenn. 



N. J. Sergeantsville, Hunterdon Co.; perhaps not native. 



Pa. Schuylkill and Chester counties. 



Tertiary, o: Cretaceous, o: Older Formations, not common. Not 

 north of the moraine. 171-183 days. About sea level. 



6. P. rigida Mill, In poor, often somewhat sterile soil : N. B. 



to Ont., W. Va., Ga., Ala. and Tenn. 



Conn. Throughout, decreasing northwestward. 



N. Y. Throughout, decreasing northward; common south of the 



moraine on L. I., and forming pine-barrens east of Central Park. 

 N. J. Throughout, decreasing northward;* forming exclusive 



forests in the pine-barrens. 

 Pa. Throughout, decreasing northward. 



* See Introduction paragraph 50. 



