496 DIAPENSIACEAE 



N. J. Known only from the old Cedar Swamp in Hudson Co., a 



station long since destroyed. 

 Pa. Wayne, Northampton and Monroe counties. 



Tertiary, o: Cretaceous, o: Older Formations, increasing north- 

 ward. Not south of the moraine. 1 17-189 days. Sea level- 

 4,040 ft. 



5. Oxycoccus [Tourn.] Hill. 



Leaves oval, acute, 4-8 mm. long; berry globose. I. 0. Oxycoccus. 



Leaves oval or oblong, obtuse, 6-14 mm. long; berry ovoid 



or oblong. 2. 0. macrocarpus. 



i. O. Oxycoccus (L.) MacM. In cold bogs: Lab. to Alask., 



N. J., N. Car., Mich, and B. Col. Also in Europe and Asia. 



Conn. Rare and local over most of the state, increasing north- 

 westward. 



N. Y. From West Point northward. 



N. J. Reported, but not definitely known from Monmouth and 

 Ocean counties; recorded from Hudson, Bergen, Morris and 

 Sussex counties. 



Pa. Pike, Wayne, Monroe, and Luzerne counties. 



Tertiary, 0: Cretaceous, o: Older Formations, rare northward. 



Not south of the moraine. 11 7-1 89 days. Sea level-4,040 ft. 



2. O. macrocarpus (Ait.) Pers. In bogs: Newf. to the N. W. 

 Terr., N. Car., W. Va., Mich, and Minn. 



Throughout the range in locally favorable places, more common 

 southward, and less common northward than elsewhere. Ap- 

 parently wanting in the unglaciated' portion of the Piedmont Pla- 

 teau.* 



DIAPENSIACEAE 



1. Pyxidanthera Michx. 



1. P. barbulata Michx. In dry sandy pine-barrens: N. J. and 

 N. Car. 

 N. J. Rare and local in Middlesex, Monmouth and Camden 



counties, outside the pine-barrens; increasing and becoming 



common in the barrens. 



Tertiary, common on Beacon Hill, decreasing elsewhere: Cre- 

 taceous, less common and scattered: Older Formations, unknown. 

 179-182 days. About sea level. 



* See Introduction paragraph 7. 



