Rhexia MELASTOMACEAE— ONAGRACEAE Ludwigia 



R. mariana L. 



Common in bogs and on borders of salt marshes, on the Coastal 

 Plain, from the Fall Line to Worcester County; infrequent in the 

 Virginia Counties. Early July to mid-Sept. 



ONAGRACEAE (Evening Primose Family) 



Jussiaea L. 

 J. diffusa Forsk. 



One station: pond at West Main Station, SaUsbury (Wi), {A. V. 

 Smith), R. R. Tatnall, 3979, 8 Sept. 1938 (T, G). 



Ludwigia L. 



L. alternifolia L. Seed Box. 



Common in low woods, swamps and salt marshes, Piedmont, 

 and Coastal Plain southward to Sussex County; occasional farther 

 south: Crisfield (So), J. H. Holmes, in 1890 (D); Exmore (No), 

 R. R. Tatnall, 3010, 19 July 1936 (T). July, August. 



L. hirtella Raf. Hairy Ludwigia. 



Infrequent, in sandy swamps, meadows and moist pinebarrens, 

 Sussex County. July, August. 



L. sphaerocarpa Ell. 



Frequent in ditches and sandy swamps of the Coastal Plain, 

 from southern New Castle County to Wicomico County. Mid- 

 July to mid-Sept. 



Var. jungens Fern. & Grisc. 



Rare: Ellendale (S), Commons, 1 Sept. 1892 (A); millpond, 

 Angola (S), R. R. Tatnall, 2019, 2 Sept. 1933 (T, P, G). (Det. 

 M. L. Fernald.) 



L. linearis Walt. 



Infrequent; sandy swamps and road ditches, Kent (Del.) County 

 to Worcester and Somerset Counties. July to early Sept. 



L. palustris (L.) Ell. var. americana (DC) Fern. & Grisc. (Rhodora 

 37, 176. 1935.) Marsh Purslane. 



Frequent in ditches and on stream margins, from the Fall Line 

 southward to central Accomac County. Mid-June to mid-Sept. 



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