530 REPORT OF NEW JERSEY STATE MUSEUM. 



Fruit — Well developed June 15, 1895 — Riddleton. 

 Middle District. — Riddleton. 



Callitriche heterophylla Pursh. Larger Water Starwort. 



Catlitriche heterophylla Pursh, Fl. Am. Sept. 3. 1S14 [N. America]. — Barton, 

 Fl. Phila. I. 2. 1818.— Britton 106. 



In streams and ponds; frequent in the Northern and Middle 

 districts. 



Variable in form| and habit. Specimens from' our range that 

 have been referred to C. palustris prove to be this, so far as I 

 have Ijeen able to examine them. 



Fruit — Well developed, but not necessarilv mature; late May 

 into October. 



Middle District. — Farmingdale, New Egypt, Delanco, Swedesboro, Clemen- 

 ton (S), Pitman, Riddleton. 



Order SAPINDALES. 



Family EMPETRACE^. Crowberries. 

 COREMA Don. 

 Corema conradii (Torr.). Conrad's Crowberry, 

 PL LXXIX. 

 Empetrum Conradii Torrey, Ann. Lye. N. Y. IV. 83. 1837 [Pine Barrens, 

 near Cedar Bridge, Monmouth Co., N. J., also Pemberton Mills, 10 miles 

 from Burlington, N. J.]. 

 Corema Conradii Willis 54. — Britton 228. — Keller and Brown 214. — Redfield, 

 Proc. A. N. S. Phila. 1869. 91-92.— do.— Redfield, Bull. Torr. Bot Club, 

 1884 97.— do. 1889, 193-195.— Britton, Bull. Torr. Club, 1884, ii7-— do. 

 1889, 195. — Saunders, Proc. A. N. S. Phila. 1900. 544. — Stone, Bartonia 

 19 10. 26. 



At several stations on the Plains or their borders in Ocean 

 and Burlington Counties, also formierly at Pemberton. where 

 it is now apparently extinct. 



This interesting plant, which here reaches the southern lim'it 

 of its range.* has attracted more attention among- botanists than 

 any other member of the Pine Barren flora, unless it be ScJii^cua 

 piisilla. It is an inhabitant of those desolate stretches of white 

 sand barrens which cover the most elevated portion of the Pine 



* Prof. Fernald (Rhodora, 191 1, p. 139) regards it as a Coastal Plain plant, 

 pushing north to Newfoundland. I have always looked upon it as a northern 

 species ranging south to New Jersey! 



