44 BOTANY OF MICHIGAN 



Aquilegia canadensis L. Wild columbine. In sandy or rocky open or 

 partially shaded ground throughout. Plentiful. 



Aquilegia vulgaris L. Garden columbine. Apparently permanently 

 established on the gravelly beach of Mackinac Island, Mackinac County. 



Actaea rubra (Ait.) Willd. Red banebeny. In damp rich open woods. 

 Frequent throughout. 



Actaea rubra forma neglecta (Gillman) Robinson. Gillmairs bane- 

 berry. Noticed as frequent on Mackinac Island and in other places. 

 Pedicels capillary, berries white. 



Actaea alba (L.) Mill. White baneberry. In dryish rich open woods. 

 Plentiful throughout. 



Hydrastis canadensis L. Golden seal. Reported as occasional in rich 

 woods throughout but not noticed by the writer. 



BERBERIDACEAE. Barberry Family 



Caidophyllum thalictroides (L.) Michx. Papoose root. Rich open 

 woods. Occasional throughout. 



Berberis vulgaris L. Common Barberry. Cultivated as an orna- 

 mental shrub in cities and villages but not noticed as escaping. 



P AP AVER ACE AE. Poppy Family 



Sanguinaria canadensis L. Bloodroot. Open rich woods from Bay 

 County to St. Ignace, Mackinac County. Plentiful. 



FUMARIACEAE. Fumitory Family 



Adlumia fungosa (Ait.) Greene. Climbing fumatory. Damp shaded 

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



Dicentra cucullaria (L.) Bernh. Dutchman's breeches. Rich shaded 

 ground throughout. Frequent. 



Dicentra canadensis (Goldie) Walp. Squirrel corn. Rich woods from 

 Bay County to St. Ignace. Frequent. 



Corydalis sempervirens (L.) Pers. Pale corydalis. Dry open ground 

 from Bay County to St. Ignace. Often abundant on burned over areas. 



Corydalis aurea Willd. Golden co^dalis. Near Alpena, Alpena 

 County, in open sandy ground. Apparently rare. 



CRUCIFERAE. Mustard Family 



Draba arabisans Michx. Twisted whitlow-grass. On rocl^y bluff east 

 side of Mackinac Island. Abundant. Not noticed elsewhere. 



Alyssum alyssoides L. Yellow alyssum. In dry open ground about 

 cities and villages. Often plentiful. 



Thlaspi arvense L. Field penny cress. From Bay County to St. 

 Ignace, Mackinac County, in cities and villages. Infrequent. 



