BOTA^'ICAL SOCIETY OP CANADA. 79 
Betula excelsa, Ait. Yellow Birch. On both sides of Lake Superior and the 
North side of Lake Huron. Griiws luxuriantly in the fertile valley 
of the Goulais River, the country between Goulais Bay and the Sault 
Ste. Marie, and on the Manitoulin Islands. 
B. papyracea, Ait. White or Canoe Birch. Kverywhere on poor soil. 
Alnus incana, Willd. Alder. Bordering streams, around both lakes. 
Ulmus racemosa, Thomas. Rock Elm. On the best lands along the South side of 
Lake Superior and on all the Manitoulin Islands. 
U. Americana, L. Swamp Elm. Abundant in the vnllies of the rivers entering the 
East side of Lake Superior and North side of Lake Huron. 
Fi'Qxinus Americana, L. White Ash. Small trees met with on Ke-we-naw 
Point. 
F. samluci/oUa, Lam. Black Ash. Common on low lands around both lakes. 
Querus rubra, L. Red Oak. Plentiful, but of small size, on the East side of Lake 
Superior. Grows to a good size on the Manitoulin Wands. 
Tilia Americana, L. Basswood. A few trees on the best lauds on the South side 
of Lake Superior. 
Pyrus Americana, DC Mountain Ash. Around both lakes ; not abundant. Best 
flower about the 2Sth of June. 
Primus Americana, Marsh. Wild Red Plum. Abundant on the Prairies on Bar 
River (G rent Lake George), and on Walker's (Jreek (opposite St. 
Jose[)h's Island), and along the banks of streams entering Portlock 
Harbour. 
P, Pennsylvanica, L. Pigeon Cherry. Extremely abundant on rocky burnt 
land on the East shore of Lake Superior, and North Shore of Lake 
Huron. 
P. Virginiana, L. Choke Cherry. East side of Lake Superior. Grows in sheltered 
places, not shaded by larger trees, and bears abundance of fruit. 
P. pumila, L. Dwarf Cherry. Abundant, growing on sand and gravel along the 
beach and banks of rivers on the east side of Lake Superior. 
Bkus typhina, L. Sumach. East shore of Lake Superior, and North shore of 
Lake Huron. 
E. Toxicodendron, L. Poison Ivy. Very abundant on the islands and North 
shore of Lake Huron. Frequently met with on the East shore of 
Lake Superior. 
Populas tremitl )iles, .Michx. Common Poplar. Plentiful on poor soil on the 
East side of Lake Superior and North side of Lake Huron. 
