462 MELASTOMACEAE 



4. L. Salicaria L. In swamps and wet meadows: Cape Breton 

 Island to Ont. and Del. Native of Europe. 



Becoming common throughout many parts of our range, es- 

 pecially in the Hudson and Delaware Valleys. 



5. Parsonsia P. Br. 



1. P. petiolata (L.) Rusby. In dry soil: R. I. to 111., Kan., Ga. 



and La. Introduced into S. Ont. 



Nearly throughout our range, but not known from the pine- 

 barrens, and east and south of them. 



MELASTOMACEAE 

 1. Rhexia L. 



Stem cylindric, very pubescent. I. R. mariana. 

 Stem square or angled, pubescent or glabrous. 



Stem more or less pubescent; leaves ovate. 2. R. virginica. 



Stem glabrous; leaves lanceolate oblong. 3. R. aristosa. 



i. R. mariana L. In pine-barren swamps: L. I. to Fla., Ky., 

 Mo. and Tex. 

 N. Y. Not very common on the east end of L. I., not reported 



from S. I., otherwise unknown. 

 N. J. Common throughout the coastal plain portion of the state, 



increasing southward. 

 Pa. Near Bristol, Bucks Co. 



Tertiary, common: Cretaceous, decreasing: Older Formations, 

 perhaps wanting. 179-220 days. About sea level. 



2. R. virginica L. In sandy swamps: Me. to Fla., 111., Mo. and 



La. 



Conn. Common along the coast, decreasing inland, and unknown 

 in Litchfield Co. 



N. Y. Common on L. I. and S. I.; rare up the Hudson Valley to 

 Westchester Co.; unknown northward. 



N. J. Morris, Passaic, Bergen, Hudson, Essex, Union and Hun- 

 terdon counties, thence increasing and common southward, 

 especially in the pine-barrens. 



Pa. Monroe, Carbon, Lehigh, Bucks, Delaware and Chester 

 counties. 

 Tertiary, common: Cretaceous, common: Older Formations, 



decreasing and becoming scattered. Predominating south of the 



moraine. 162-220 days. Sea level-1,000 ft. 



