MICHIGAN ACADEMY OF SCIENCE. 125 



*371. Acer saccharum Marsh. Sugar Maple. "One part of the island, 

 on the summit of the Greenstone Ridge along the forest road from Washing- 

 ton Harbor to Lake Desor, it is very abundant. Reported to occur sparingly 

 along other parts of the Greenstone, but seems to be confined entirely to 

 the higher parts of the summit ridge. Along this 'forest road' it forms 

 almost pure stands, in other places there is Betula lutea and B. lenta mixed 

 with it. Some of the trees are 2-3 feet in diameter." Holt. Reported also 

 by Adairis, Ruthven, and others. 



372. Acer rubrum L. Red Maple. Bare burned ridge : Sargent Lake trai 1 

 near Rock Harbor. 



Balsaminaceae. Touch-me-not ^amil3^ 



373. Impatiens biflora Walt. Jewel Weed. Depression in climax forest: 

 Duncan Bay. 



Rhamnaceae. Buckthorn Family. 



374. Rhamnus alnifolia L'H^r. Buckthorn. Sheltered cliff: Passage 

 Island; Shrub zone of Bog Succession: head of Siskowit Bay. 



Hypericaceae. St. John's-wort Family. 



375. Hypericum virginianum L. Marsh St. John's wort. Sedge zone of 

 Bog Succession. 



Violaceae. Violet Family. 



376. Viola novae-angliae House. Depression in climax forest: Duncan 

 Bay. 



377. Viola pallens (Banks) Brainerd. Depression in climax forest: Duncan 

 Bay. 



378. Viola incognita Brainerd. Sweet White Violet. Bog forest; climax 

 forest. 



379. Viola renifolia Gray. Delta swamp forest. 



380. Viola labradorica Schrank. Rock Violet. Sheltered rock shore 

 crevices. 



*381. Viola arenaria DC. "Rocky shore near Siskowit cabin." Holt. 



Elaeagnaceae. Oleaster Family. 



382. Shepherdia canadensis (L.) Nutt. 



Onagraceae. Evening Primrose Family. 



383. Epilobium angustifolium L. Fireweed. Very abundant in recent 

 burns; occasional in many other habitats. 



384. Epilobium palustre L. Willow-herb. Sedge zone of Bog Succession. 



385. Epilobium adenocaulon Haussk. Rock crevices: Chippewa Harbor. 



386. Oenothera biennis L. Evening Primrose. Sandy shores and clear- 

 ings. 



387. Circaea alpina L. Enchanter's Nightshade. Depression in climax 

 forest: Duncan Bay. 



Haloragidaceae. Water Milfoil Family. 



388. Myriophyllum alterniflorum DC. Water Milfoil. Tobin's Harbor. 



389. Myriophyllum spicatum L. Aquatic, Delta Swamp Succession. 



