120 SIXTEENTH REPORT. 



Myricaceae. Sweet Gale Famih^ 



247. Myrica Gale L. Sweet Gale. One of the two principal shrubs of 

 the shrub zone of the Delta Swamp Succession, the other being Alnus incana; 

 also frequent in the shrub zone of the Bog Succession. 



Betulaceae. Birch Family. 



248. Corylus rostrata Ait. Beaked Hazelnut. Abundant in open burn 

 forest. 



*249. Betula lenta L. Cherry Birch; Sweet Birch. "Associated with B. 

 lutea." Holt. 



*250. Betula lutea Michx'. f. Yellow Birch. "Noted only along the 

 forest road from Washington Harbor to Lake Desor, where it was very 

 common along the Greenstone Ridge. Specimens 36 inches in diameter 

 noted." Holt. 



251. Betula alba L. var. papyrifera (Marsh) Spach. Paper, Canoe, or 

 White Birch. Second in abundance of the three climax trees. Persists after 

 fire in its underground parts, and sprouting from the stump makes the bulk 

 of the burn forest. Frequent in the bog forest and as a rock shore pioneer. 



252. Betula pumila L. Low Birch. Occasional in the shrub zone of the 

 Bog Succession. 



253. Alnus crispa (Ait.) Pursh. Green or Mountain Alder. Chmax forest, 

 very abundant along its edge where it borders sheltered bays; frequent in 

 rock shore crevices. 



254. Alnus incana (L.) Moench. Hoary or Speckled Alder. Shrub zone 

 of Bog Succession and bog forest, especially in localities where sphagnum is 

 practically absent; abundant in shrub zone of Delta Swamp Succession.' 



Fagaceae. Beech Family. 



*255. Quercus rubra L. Red Oak. "A single specimen was noted along 

 the forest road between Washington Clul) and Lake Desor." Holt. 



*256. Quercus velutina Lam. Black Oak. x\dams (1908: p. 30) men- 

 tions Black Oak as occurring along the Lake Desor trail upon the summit of 

 the Greenstone Range. 



Urticaceae. Nettle Family. 



257. Urtica gracilis Ait. Nettle. Clearings: Gull Islands. 



Santalaceae. Sandalwood Family. 



258. Comandra livida Richards. Frequent in climax forest, bog forest, 

 aiid heath mat. 



Aristolochiaceae. Birthwort Family. 



*259. Asarum canadense L. Wild Ginger. "Flood plain, Washington 

 Creek." Holt. 



Polygonaceae. Buckwheat Family. 



260. Rumex Britannica L. Great Water Dock. Sedge zone, Delta Swamp 

 Succession. 



261. Rumex crispus L. Curled Dock. Clearings. 



