£82 UNIVERSITY OF MISSOURI STUDIES [$24 



Family 77. ONAGRACEAE Dumort. Evening-primrose 

 family. 



265. JUSSIEUA (JUSSIAEA) L. Primrose 



WILLOW. 



670. J. diffusa Foi ski. \J. repe?is And.']. Creeping prim- 

 rose WILLOW. 



In and about ponds; local. 



Kentucky and Illinois to Kansas; Florida to Texas: 

 Tropical Asia and America. 



266. LUDWIGIA L. [ISNARDIA L.]. False 



LOOSESTRIFE. 



671. L. altemifolia L. Seed-box. Rattle-box. 

 Frequent in swales and marsh-meadows. 



New Hampshire to Ontario and Michigan; Florida to 

 Texas and Kansas. 



672. L. palustris (L.) Ell. [/. palustris L.]. Water 

 purslane. 



Common in limose places. 



Nova Scotia to Manitoba and Oregon; Florida to 

 California and Mexico: Europe. 



267. EPILOBIUM L. Willow-herb. 



673. E. adenocaulon Haussk. 

 Wet places and swamps; local. 



New Brunswick to British Columbia; Pennsylvania and 

 Missouri to Utah and California. 



268. ONAGRA Tourn. ^OENOTHERA L.]. 

 Evening primrose. 



674. O. biennis (L.) Scop. \_Oe?iotkera biennis L.]. Com- 

 mon evening primrose. 



Common in all open and waste places; often a bad weed. 

 Labrador and Florida to the Mississippi Valley and 

 South Dakota. 



