Mercurialis EUPHORBIACEAE Euphorbia 



Mercurialis L. 

 M. annua L. 



A waif from Europe, collected by E. Tatnall and by A. Commons, 

 on a wharf at Wilmington, in 1897 (A, D, U). 



Acalypha L. Three-seeded Mercury. 



See Weatherby: Rhodora 29, 193-204 (1927), and 39, 14-16 

 (1937). 



A. rhomboidea Raf. {A. virginica of authors.) 



Common in the northern counties; rare or neglected southward: 

 Salisbury (Wi), Tidestrom, 7444, in 1914 (U); ditch 13^ mi. n. of 

 Cheriton (No), R. R. Tatnall, 3518, 3 Oct. 1937 (T). July to Mid- 

 Sept. 



A. gracilens Gray. 



Infrequent in dry woods and fields, throughout our area. Early 

 Aug., Sept. 



A. virginica L. {A.digyneia'RaS.) 



Frequent in woods and waste ground of the Piedmont, and 

 southward on the Coastal Plain, at least to Wicomico County. 

 Aug., Sept. 



Ricinus L. Castor-oil Plant. 



R. communis L. 



An occasional escape from cultivation, New Castle County. 



Phyllanthus L. 

 P. caroliniensis Walt. 



Infrequent in alluvial or moist sandy soil of the Coastal Plain; 

 rare in the Piedmont: Conowingo (Ce), Van Pelt, 1 Sept. 1909 (A). 

 Aug. to early Oct. 



Walter (Fl. Car., 228 (1788)) spelled the specific name as above. 



Euphorbia L. Spurge. 



^ / "E. polygonifolia L. Seaside Spurge. 



Common on sea beaches of the Coastal Plain; one inland sta- 

 tion: Ellendale (S), C. S. Williamson, 29 Aug. 1908 (A). Early 

 Aug. into Oct. J, t^<,j. ^_A V 



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