30 Annals of the Carnegie Museum. 



SPERGULA Linnceus. 



J S. arvensis Linnaeus. Cornsi)urry. 



Allegheny, Highwood Cemetery, 1893; John Ferguson. 



ANYCHIA Michaux. 



* A. dichotoma Michaux. Forked chickweed. 



^= A. Canadensis (Fiunieus). Slender forked chickweed. 

 A. capillacea I)e Candolle. 



PORTULACACE^ Reichenbach. 



PURSLANE FAMILY. IV-20. 



PORTULACA Linnaeus. 



* P. oleracea Linnreus. Common purslane. 



* P. grandiflora Hooker. Portulaca. 



Occasionally spontaneous. 



CLAYTONIA Linnjeus. 

 *. C. Virginica Linnaeus. Narrow springbeauty. 



* C. Caroliniana Michaux. Broad springbeauty. 



ELATINACEiE 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. IV-76. 

 HYPERICUM Linnaius. 

 5J H. Ascyron Linnxus. Great St. John's-wort. 



