TUSCOLA COUNTY 



185 



Salix sericea Marsh. Silky willow. Wet open ground. Frequent. 



Salix rostrata Richards. Bebb's willow. Noticed in dryish ground 

 near Murphy's Lake. Probably common throughout. 



Salix Candida Fliigge. Sage willow. Hoary willow. In boggy plac 

 especially about the small lakes. Frequent. 



Populus alba L. White poplar. Planted as an ornamental tree in 

 villages and inclined to spread by root. Noticed only pistillate ca1 Id] . 



Populus tremuloides Michx. Common poplar. American aspen. 

 Common throughout. Often springing up very thick on burned-over 

 and low drained ground. 



Populus grandidentata Michx. Large-toothed aspen. Frequent on 

 dry and hilly ground with other trees. 



Populus balsamifera L. Balsam poplar. Common in sandy ground 

 on and near the shore of Saginaw Bay, and frequent in other places. 

 " Common in the sandy parts of Cass River valley in Indian fields, Wells 

 and Novesta townships." C. A. Davis. 



Populus deltoides Marsh. Cotton-wood. Frequent throughout in 

 rich ground with other trees. "Frequent in the vicinity of Saginaw 

 Bay and in moist places generally." C. A. Davis. 



Populus nigra italica DuRoi. Lombardy poplar. Planted as an orna- 

 mental tree and inclined to spread by root. 



MYRICACEAE. Sweet Gale Family 



Myrica asplenifolia L. Sweet fern. Noticed on poor ground west of 

 Murphy's Lake. "Light sandy soil, Indianfields and Wells townshi] 

 C. A. Davis. 



JUGLANDACEAE. Walnut Family 



Juglans cinerea L. Butternut. Frequent throughout in rich ground 

 with other trees. "Arbela and Millington townships. ,; C. A. Davis. 



Juglans nigra L. Black walnut. Mostly planted, but small appar- 

 ently native trees occasionally noticed in rich ground. "Along the ( 

 River below Vassar. " C. A. Davis. 



Carya ovata (Mill.) K. Koch. Shag-bark hickory. Frequent through- 

 out. Many large trees noticed with other trees. "Frequent in t In- 

 southeastern part of the county." C. A. Davis. 



Carya cordijormis (Wang) K. Koch. Bitter nut. Frequent in rich 

 ground with other trees. 



BETULACEAE. Birch Family 



Corylus americana Walt. Common hazelnut. Noticed in particular 

 as abundant on some of the islands in the north part of Akron Town- 

 ship. "Common in wood and brush lands throughout .' C. A. Davis. 



Ostrya virginiana (Mill.) K. Koch. Ironwood. Common in rich 



