460 THE PLANT LIFE OS MARYLAND 



ONAGRACEAE. 



Isnardia palustris L. Marsh Purslane. 



Throughout the state; in fresh marshes, swamps and open wet situa- 

 tions; common. 



Ludwigia sphaerocarpa Ell. Globe-fruited Ludwigia. 



Coastal and Midland Zones; frequent in the Coastal and rare in the 



Midland; in fresh marshes and swamps. 

 Talbot County, Easton (126). 



Ludwigia linearis Walt. Linear-leaved Ludwigia. 



Coastal Zone; in wet sandy situations; infrequent. 

 Worcester County, near Berlin (637). 



Ludwigia alternifolia L. Seed Box. 



Throughout the state; in fresh marshes, swamps and open wet situa- 

 tions; common. 



Jussiaea decurrens (Walt.) DC. LJpright Primrose-willow. 



Coastal Zone; in fresh marshes; rare. 



Charles County, Marshall Hall (M. A. Chrysler) ; Caroline County, 

 near Tuckahoe Bridge (1650). 



Chamaenerion angustifolium (L.) Scop. Fire Weed. 



Throughout the state; in dry forests, clearings and open situations; 



common. 

 Garrett County, Swallow Falls (543). 



Epilobium coloratum Muhl. Purple-leaved Willow-herb. 



Throughout the state; in fresh marshes and open wet situations; 



common. 

 Cecil County, Leslie (363). 



Epilobium adenocaulon Haussk. Northern Willow-herb. 



Throughout the state; in fresh marshes, swamps and open wet situa- 

 tions; frequent. 

 Allegany County, Braddock Run (91S). 



Onagra biennis (L.) Scop. Evening Primrose. 



Throughout the state; in cultivated and waste grounds and dry situa- 

 tions generally; common. 



Oenothera humifusa Nutt. Seaside Evening Primrose. 



Coastal Zone; on the strand of the ocean front; frequent. 

 Worcester County, Ocean City (1251). 



Oenothera laciniata Hill. 



Caroline County, near Greensborough (1640).* 



♦This number was determined by the United States National Herbarium as Raiman- 

 nia humifusa, (Nutt.) Rose. 



