192 BOTANY OF MICHIGAN 



Caltha palustris L. Marsh marigold. Common in swamps, wet 

 woods, thickets and open marshy ground. 



Coptis trifolia (L.) Salisb. Gold thread. Noticed in particular in 

 tamarack swamps about Cat Lake and Mud Lake. Probably frequent 

 throughout. 



Aquilegia canadensis L. Wild columbine. Frequent in open shaded 

 sandy ground. Often abundant on low shaded sand ridges near the shore 

 of Saginaw Bay and also on the islands of the prairies. 



Actaea rubra (Ait.) Willd. Red baneberry. Frequent in rich woods 

 and thickets and noticed on the islands in Akron Township. 



Actaea alba (L.) Mill. White baneberry. Noticed on damp hillsides 

 among trees near Spruce Lake. 



MAGNOLIACEAE. Magnolia Family 



Liriodendron tulipifera L. Whitewood. Tulip tree. " Southern part 

 of Fremont and Water town townships." C. A. Davis. 



MENISPERMACEAE. Moonseed Family 



Menispermum canadense L. Moonseed. Common in rich woods and 

 thickets. Noticed in particular in damp open woods near Murphy's 

 Lake. "Borders of low woodlands and marshes, Akron and Columbia 

 townships.''' C. A. Davis. 



BERBERIDACEAE. Barberry Family 



Podophyllum peltatum L. Mandrake. May apple. Common through- 

 out in rich shaded ground. 



Caulophyllum thalictroides (L.) Michx. Pappoose root. In rich 

 woods especially near Murphy's Lake. Probably frequent throughout. 



Berberis vidgaris L. Common barberry. " Roadside in Wisner Town- 

 ship. " C. A. Davis. 



LAURACEAE. Laurel Family 



Sassafras variifolium (Salisb.) Ktze. Sassafras. Not frequent in 

 northern part of county near Saginaw Bay, but in other parts often 

 abundant, especially on dry hills. "Dry woodlands, Watertown and 

 Dayton townships." C. A. Davis. 



Benzoin aestivale (L.) Nees. Spice bush. Noticed in particular in 

 rich woods near Murphy's Lake and Mud Lake. Probably frequent 

 throughout. 



PAPAVERACEAE. Poppy Family 



Sanguinaria canadensis L. Bloodroot. Frequent in rich woods. 

 Noticed in particular near Murphy's Lake and Mud Lake. Probably 

 frequent throughout. 



