36 BOTANY OF MICHIGAN 



County to St. Ignace and on Mackinac Island, Mackinac County. 

 Plentiful. 



Salix humilis Marsh. Prairie willow. In dry sandy ground from 

 Linwood in Baj- County to Mackinaw City, Cheboygan County. 

 Common. 



Salix sericea Marsh. Silky willow. In wet marslw ground from Bay 

 County to St. Ignace and on Mackinac Island, Mackinac County. 

 Frequent. 



Salix rostrata Richards. Bebb's willow. In dry or damp open ground. 

 Frequent throughout. 



Salix Candida Fliigge. Sage willow. In boggy open ground from Bay 

 County to St. Ignace and on Mackinac Island, Mackinac County. 

 Frequent. 



Populus alba L. White poplar. Occasionally planted especially in 

 cities and villages and often spreading by root. 



Popidus tremuloides Miehx. American aspen. Common throughout, 

 especially on burnt over ground. 



Populus grandidentata Michx. Large-toothed aspen. Common 

 throughout. 



Populus balsamifera L. Balsam poplar. Very abundant throughout 

 on and near the Lake Huron shore. Many large trees noticed from 

 Alpena to Mackinaw City, Cheboygan County. 



Populus deltoides Marsh. Cotton-wood. Noticed in Bay and Arenac 

 Counties, but not farther north. Plentiful. A sort of horticultural 

 form cultivated as a street and road tree noticed in cities and villages, 

 under common name of " large-leaved poplar" or " Carolina poplar.' 



Popidus nigra italica DuRoi. Lombardy poplar. Planted in cities 

 and occasionally spreading by root. 



MYRICACEAE. Sweet Gale Family 



Myrica gale L. Sweet gale. In wet open places. Common through- 

 out. Noticed south as far as Sand Point, Huron County. Noticed also 

 in Oakland County by C. Billington. 



Myrica asplenifolia L. Sweet fern. Sandy open ground from near 

 Omer in Arenac County to Mackinaw City, Cheboygan County. 

 Abundant on jack pine plains. 



JUGLANDACEAE. Walnut Family 



Juglans cinerea L. Butternut. From Bay Count3 T to the north line 

 of Alpena County. Frequent. One very large tree and a number of 

 small ones near center of Bois Blanc Island, Mackinac County. 



Juglans nigra L. Black walnut. Planted occasionally in cities and 



