530 RHPOKT OK XHW j1«:KSEV STATE MUSEUM. 



Priiit — Well developed June 15, 1895 — Riddlcton. 

 Middle Dn-/nV/.— Riddlcton. 



Callitriche heterophylla Pursh. Larger Water Starwort. 



Callitriche heterophylla Pursh, Fl. Am. Sept. 3. 1814 [N. America].— Barton, 

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



In Streams and ponds; frequent in the Northern and Middle 

 districts. 



Variable in fornil and hal)it. Specimens from our range that 

 have been referred to C. l^aliisfris prove to be this, so far as I 

 have been able to examine them. 



Friiii — Well developed, but not necessarily mature; late May 

 into October. 



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

 ton (S), Pitman, Riddleton. 



Order SAPINDALES. 



Fainily EMPETRACE^. Crowberrics. 



COREMA Don, 

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

 PI. LXXIX. 

 Empefrum 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, 117.— do. 

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

 1910, 26. 



At several stations on the Plains or their 'borders in Ocean 

 and Burlington Counties, also former!}^ at Pemberton. where 

 it is now apparently extinct. 



This interesting plant, v.diich 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 Schizcca 

 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, 1911, 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 ! 



