MICHIGAN ACADEMY OF SCIENCE. 165 



Clematis virginiana L. Virginia Virgin's Bower. — Frequent in damp 

 shaded ground and on banks of streams. 



Isapyrum biternatum (Raf.) T. and G. False Rue Anemone. — Shaded 

 high banks of the Aux Sables river. Apparently rare. 



Caltha palustris L. Marsh Marigold. — Common in swamps, wet open 

 w^oods, thickets and wet meadows. 



Coptis trifolia (L.) Salisb. Goldthread. — Frequent in damp shaded places 

 and swamps. 



Aquilegia canadensis L. Wild Columbine. — Common in dry and sandy 

 ground. 



Delphinium consolida L. Field Larkspur. — Occasionally escaping from 

 cultivation to roadsides and fields. 



Actaea rubra (Ait.) Willd. Red Baneberry. — Common in rich open woods 

 and thickets. 



Actaea alba (L.) Mill. White Baneberry. — Frequent in rich open woods. 



Hydrastis canadensis L. Golden Seal. — Common in northeastern part of 

 Walpole Island. Not noticed elsewhere. 



Magnoliaceae. Magnolia Famil}'. 



Liriodendron tulipifera L. Tulip Tree — Occasional in rich ground with 

 other trees. 



Menispermaceae. Moonseed Family. 



Menispermum canadense L. Moonseed. — Common in damp shady 

 ground and along banks of streams. 



Berberidaceae. Barberry Family. 



Podophyllum peltatum L. Ma}^ Apple. Wild Mandrake. — Common in 

 rich open woods and thickets. 



Jeffersonia diphylla (L.) Pers. Twin Leaf. — Abundant along the banks of 

 the Aux Sables River. Not noticed elsewhere. 



Caulophyllum thalictroides (L.) Michx. Pappoose Root. — Common in 

 damji rich woods and thickets. 



Berberis vulgaris L. Common Barberry. — Inclined to escape from cultiva- 

 tion and persist. 



Lauraceae. Laurel Family. 



Sassafras variifolium (Salisb.) Ktze. Sassafras. — Common in the western 

 part of the county and along the Lake Huron shore. 



Benzoin aestivale (L.) Nees. Spice Bush. — Common in damp woods and 

 thickets. 



Papoveraceae. Poppy Family. 



Sanguinaria canadensis L. Bloodroot. — Common in damp rich woods and 

 thickets. 



Chelidonium majus L. Celandine. — Occasional near towns and villages. 

 Newton Tripp. 



Papaver somniferum L. Common Poppy. — Occasional as an escape from 

 cultivation. 



Papaver rhoeas L. Corn Poppy. — Inclined to escape and remain in dry 

 and sandy ground at Point Edward. 



