38 BOTANY OF MICHIGAN 



Quercus macrocarpa Michx. Bur oak. Rich ground with other trees 

 from Bay County to Mackinaw City, Cheboygan County. Seldom 

 plentiful. 



Quercus bicolor Willcl. Swamp white oak. Rich ground with other 

 trees from Bav Countv to Bois Blanc Island, Mackinac County. Seldom 

 plentiful. 



Quercus ellipsoidalis E. J. Hill. Hill's oak. Near Lewiston, Mont- 

 mo renc} r County. Plentiful. 



Quercus rubra L. Red Oak. Fringing the Lake Huron shore more 

 or less from Bav Countv to Mackinac Island, Mackinac County. 

 Abundant on Mackinac Island and Bois Blanc Island, Mackinac 

 County. 



Quercus velutina Lam. Yellow-barked oak. Dry sandy open ground. 

 With other trees from Bay County to Alpena and Montmorency 

 counties. Frequent. 



URTICACEAE. Nettle Family 



Ulmusfulva Michx. Slippery elm. Said to be plentiful in Bay County. 

 G. M. Bradford. Reported but not seen near Tawas City in Iosco 

 County. Said to be plentiful in Montmorency County. Noticed near 

 Rose City, Ogemaw County. 



Ulmus americana L. American elm. Common from Bay County to 

 Mackinaw City, Cheboygan County. A few large trees on Mackinac 

 Island, Mackinac County. Plentiful and trees large on Bois Blanc 

 Island, Mackinac County. 



Ulmus racemosa Thomas. Rock Elm. Rich ground with other trees 

 and plentiful in Preqsue Isle, Montmorency, Oscoda and Ogemaw 

 counties. 



Celtis occidentalis L. Sugarberrv. At Point Lookout in Arenac 

 County. Perhaps its northern limit. Prof. C. F. Wheeler's notes, 

 dated August 10, 1900. On Little Charity Island in Saginaw Bay. 



Cannabis saliva L. Hemp. In and near cities and villages in waste 

 ground. Often plentiful. 



Humulus lupulus L. Common hop. Apparently an escape from cul- 

 tivation near Linwood, Bay County, and about Alpena, Alpena County. 



Urtica gracilis Ait. Slender nettle. Damp, open or partially shaded 

 ground from Bay County to St. Ignace, Mackinac County. Seldom 

 abundant. 



Laportea canadensis (L.) Gaud. Wood nettle. In rich shaded ground 

 from Bay County to Cheboygan County. Frequent. 



SANTALACEAE. Sandalwood Family 



Comandra richardsiana Fernald. Richards' bastard toad-flax. In 

 dry open ground from Bay County to St. Ignace and on Mackinac Island, 



