54 BOTANY OF MICHIGAN 



BALSAMINACEAE. Touch-me-not Family 



Impatiens biflora Walt. Spotted touch-me-not. Damp open or par- 

 tially shaded ground. Abundant throughout. 



RHAMNACEAE. Buckthorn Family 



Rhamnus alnifolia L'Her. Alder-leaved buckthorn. Damp open or 

 shaded ground. Plentiful throughout. 



Ceanothus americanus L. New Jersey tea. Dry open ground near 

 Onaway, Presque Isle County. Apparent ly infrequent. 



Ceanothus ovatus Desf. Smaller red-root. Dry open ground from 

 Bay County to Mackinaw City. Frequent throughout. 



VITACEAE. Vine Family 



Psedera vitacea (Knerr) Greene. American woodbine. Damp shaded 

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

 throughout. Noticed also near Lewiston, Montmorency County. 



Vitis vulpina L. River-bank grape. From Bay County to Round 

 Island and Bois Blanc Island, Mackinac County. Frequent. Noticed 

 as frequent in Moiitmorency, Oscoda and Ogemaw counties. 



TILIACEAE. Linden Family 



Tilia americana L. Basswood. Rich ground with other trees, espec- 

 ially in hardwoods. Frequent throughout. Trees often very large. 



MALVACEAE. Mallow Family 



Malva rotundifolia L. Common mallow. About dwellings and in 

 cities and villages. Common throughout. 



Malva moschata L. Musk mallow. Noticed along roads and in old 

 fields, Presque Isle County. Occasional throughout. 



HYPERICACEAE. St. John's-wort Family 



Hypericum ascyron L. Great St. John's-wort. Damp places and 

 banks of streams throughout. Infrequent. 



Hypericum perforatum L. Common St. John's-wort. In fields and 

 pastures and along roads. Frequent throughout. 



Hypericum kalmianum L. Kami's St. John's-wort. Usually in dry 

 sandy ground on and near the sandy shores of Lake Huron. Frequent 

 throughout. 



Hypericum virginicum L. Marsh St. John's-wort. Open marshy 

 ground throughout. Frequent. 



