86 FLORA OF MOUNT DESERT. 



ELATINACE^. Waterwort Family. 



ELATINE, L. Waterwort. 



E. Americana (Pursh), Arn. 



Rare. Margin of Somes Stream and of Mill Pond, Somesville 

 (Rand, M. L. Fernald). 



HYPERICACE^. St. John's-wort Family. 



HYPERICUM, L. St. John's-wort. 



* H. adpressum, Bart. 



Rare. Adventive from farther south. Along the railroad, 

 Green Mountain (Arnold Greene). 



H. ellipticum, Hook. 



Wet places and bogs; frequent. Pond Heath; Northeast 

 Harbor; Southwest Harbor; High Head, etc. (Rand) ; — Somes- 

 ville (R. & R.); — Squid Cove (Redfield). 



H. PERFORATUM, L. COMMON St. John's-wort. 



Fields and roadsides ; frequent in some parts of the Island- 

 A well known weed. Naturalized from Europe. 



H. mutilum, L. 



Frequent in low grounds and wet places. Outlet of Great 

 Pond; Southwest Harbor; Somesville, etc. (Rand); — shores of 

 Great Pond (Redfield). 



H. Canadense, L. 



Common in wet, sandy soil. 



Var. majus, Gray. 



Frequent. Southwest Harbor; Northeast Harbor; Denning 

 Brook; Long Pond meadows; Somesville; shores of Jordan 

 Pond and Great Pond ; Bass Harbor, etc. (Rand) ; — Seal Har- 

 bor; Little Cranberry Isle (Redfield). 



Two somewhat peculiar forms of this variety are sometimes 

 met with on the Island: — 



