Hypericum HYPERICACEAE Hypericum 



H. punctatum Lam. 



Common throughout, in swampy ground, and in borders of salt 

 marshes; infrequent on rocky hillsides. July, early Aug. 



H. prolificum L. Shrubby St. John's-wort. 



Rare, in either wet or dry soil of the Piedmont and northern 

 Coastal Plain: river shore, Conowingo, S. Brown, 1 Sept. 1909 (A), 

 and Pennell, 1 July 1914 (A); railroad bank at Wilson station 

 (NC), R. R. Tatnall, 1913, 8 July 1933, and later collections (T, 

 G, A, P). July. 



H. densiflorum Pursh. 



Infrequent in swampy places and on sandy river shores, from the 

 Fall Line to Somerset County. July to early Sept. 



H. adpressum W. P. C. Barton. 



Infrequent in swamps and meadows of the Coastal Plain. July, 

 Aug. 



H. ellipticum Hooker. 



Rare, on river shores of the Piedmont and northern Coastal 

 Plain: Delaware River at Grubb's Landing (NC), Canby, June 

 1886 (D, A); North East (Ce), S. Brown, 4 July 1903 (A); river bed, 

 Conowingo (Ce), E. B. Bartram, 4 July 1907 (A), and Pennell, 1 

 July 1914 (A), this locality now submerged. Mid-June, early July. 



^yH. denticulatum Walt. var. ovalifolium (Britton) Blake. {H. 

 virgatum Lam. var. ovalifolium Britton.) 



Frequent in ditches and wet meadows of Sussex County; one 

 collection near Wilmington: "south side Christiana Creek," Com- 

 mons, 16 Sept. 1899 (A). Early July to early Sept. 



H. boreale (Britton) Bicknell. 



Rare, in wet places in southern Delaware: Ellendale (S), C. S. 

 Williamson, 29 Aug. 1908 (A) ; edge of Tubmill Pond (K), 2 mi. n. of 

 Milford, R. R. Tatnall, 2760, 31 Aug. 1935 (T, P, G); dune hollows 

 s. of Bethany Beach (S), Fogg, 11261, 28 Aug. 1936 (P). Early 

 July, Aug. 



H. mutilum L. Dwarf St. John's-wort. 



Common throughout, in meadows, ditches and swampy woods. 

 July to early Sept. 



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