30 Annals of the Carnegie Museum. 



SPERGULA Linnseus. 

 f S. arvensis Linnaeus. Cornspurry. 



Allegheny, Highwood Cemetery, 1893; John Ferguson. 



ANYCHIA Michaux. 



* A. dichotoma Michaux. Forked chickweed. 



* A. Canadensis (Linnaeus). Slender forked chickweed. 

 A. capillacea De Candolle. 



PORTULACACE^ Reichenbach. 

 PURSLANE FAMILY. IV-20. 

 PORTULACA Linneeus. 

 "■^ P. oleracea Linnaeus. Common purslane. 



* P. grandiflora Hooker. Portulaca. 



Occasionally spontaneous. 



CLAYTONIA Linnsus. 



* C. Virginica Linnaeus. Narrow springbeauty. 



* C. Caroliniana Michaux. Broad springbeauty. 



ELATINACE^ Lindley. 



WATERWORT FAMILY. IV-77. 



ELATINE Linnaeus. 



E. Americana (Pursh). Mud-purslane. 



Probably overlooked on account of its minuteness. 



HYPERICACE^ Lindley. 

 ST. JOHN'S-WORT FAMILY. IY-76. 

 HYPERICUM Linnaeus. 

 § H. Ascyron Linnaeus. Great St. John's-wort. 



