CONTRIBUTIONS TO THE BOTANY OF MICHIGAN. 213 



Leguminosw. 



Apios Apios {Lin.) MacM., the Gronnd-nut or Indian Potato, is quite 

 frequent in places at Detroit. The tubers are edible. 



OxaUdacece. 



Oxalis corniculata Lin. var. Dillenii (Jacq.) Trelease {0. stricta 

 Small not Lin.) is frequent on Belle Isle. 



Poli/galacew. 



Polygala Senega Liu., the Seneka Snake root of commerce, is frequent 

 in the vicinity of Palmer Park. 



Aceracece. 



Acer Negundo Lin., the Box-Elder, and Acer Saccharum 2Iarsh., the 

 Sugar Maple, are frequent in places and on Belle Isle. The former is 

 also a well known shade tree. 



Malvacecc. 



Alth.Ta rosea Cav. is occasionally seen beyond the limits of cultivation 

 and appears to be adventive. 



Violaccce. 



Viola pedata Lin. is occasionally seen in dry fields at or near Detroit. 



Cornacece. 



Cornus Amomum .17/77., the Kinnikinnik of the Indians, is frequent at 

 Palmer Park. 



Ericacew. 



Gaultheria procumbens Lin., the Wintergreen, is frequent at Palmer 

 Park. 



Primulacew. 



Anagallis arvensis Lin., the Poor-Man's Weather Glass, is occasionally 

 seen on waste gi'ounds. 



ApocynacecB. 



Apocynum Milleri Britt. is frequent in fields at Detroit. 



Asclepiadacece. 



Ascerates virdiflora (Raf.) Eaton and A. Floridana {Lam.) Eitclic. 

 are occasionally seen. 



Polemoniacece. 



Phlox paniculata Lin. is sometimes seen beyond the confines of a gar- 

 den. 



