174 
FIFTEENTH REPORT. 
179. Aquilegia Canadensis, Lin. Columbine. 
Swamps. Common. 
180. Anemone Canadensis, Lin. Windflower. 
Banks. Frequent. 
181. Anemone cvlindrica, A. Grav. Windflower. 
Sterile grounds. Frequent. 
182. Anemona quinquefolia, Lin. Windflower. 
Borders of woods. Frequent. 
183. Anemone Yirginiana, Lin. Windflower. 
Banks. Frequent. 
184. Clematis Yirginiana, Lin. Virgin’s Bower. 
Low, moist grounds. Rare. 
185. Ranunculus abortivus, Lin. 
Low grounds and shady places. Common. 
The species of this genus are called Crowfoots or Buttercups. 
18G. Ranunculus aquatilis, Lin., Var. capillaceus, D. C. 
Streams. Common. 
1ST. Ranunculus aquatilis, Lin., Yar. caespitosus, D. C. 
Rooting in mud. Frequent. 
1S8. Ranunculus fascicularis, Muhl. 
Sandy hills. Frequent. 
189. Ranunculus hispidus, Mx. 
Low grounds. Frequent. 
190. Ranunculus Pennsylvanicus, Lin. f. 
Low grounds. Frequent. 
191. Ranunculus recurvatus, Poir. 
Open woods. Frequent. 
192. Ranunculus sceleratus, Lin. 
Low grounds. Common. 
193. Ranunculus septentrionalis, Poir. 
Swampy grounds. Common. 
194. Thalictrum dasycarpum, Fisch & Lall. Meadow Rue. 
Banks of streams. Common. 
Family 33. Berberidaceae. 
195. Podophyllum peltatum, Lin. May Apple, Mandrake. 
Open woods. Frequent. 
The rhizome is an official drug under the name of Podophyllum. 
It is used chiefly as a laxative or purgative in torpidity of the 
liver. 
Family 34. Laura ceae. 
196. Euosmus Sassafras (Lin.) Nutt. Sassafras. 
Upland woods. Rare. 
A commercial drug. The bark of the root is used as a flavoring 
aromatic. Official under the name of Sassafras. 
Order XVIII. Papaverales. 
Family 35. Cruciaceae. 
197. Sisymbrium altissimum, Lin. Tumble Mustard. 
Waste grounds. Common. 
198. Sisymbrium officinale (Lin.) Scop. Hedge Mustard. 
Waste places. Frequent. 
This form which has canescent or tomentose siliques is rather 
rare. 
