15 



(2. Viola.) 



blanda, Willcl. 



Shaded low grounds. Not common. April, 

 cucullata, Ait. 



Low grounds. Common. April, 

 cucullata, var. palmata, Gray. (V. palmata, L.) 



Moist woodlands. Frequent. May. 

 villosa, Walt. Nutt. (V. sororia, Le Conte.) 



Dry hilly woods; Brandywine. Frequent. May. 

 sagittata, Ait. 



Old fields, &c; McKee's. Frequent. May. 

 pedata, L. 



Sandy woods; Rodgers', &c. Rare. April — May. 

 Muhlenbergii, Torr. 



Low sandy ground; Brandy wine. Frequent. May. 

 striata, Ait. (V. ochroleuca, Schic.) 



Low sandy soil; third dam. Common. May. 

 pubescens, Ait. 



Dry woods. Frequent. May. 

 pubescens, var. scabriuscula, T. & G. 



Low sandy woods; third dam. Frequent. May. 



Order 12.— CISTACE-E. 16. 



1. Helianthemum, Tourn. 



Canadense, Michx. (Frost Weed.) 

 Dry hills. Not common. June. 



2. Lechea, Linn. 



major, Michx. 



Dry open woods. Rare. Aug. 

 minor, Lam. (Pin Weed.) 



Dry sterile soil. Common. Aug. 



Order 13.— DROSERACEiE. 17. 



1. Drosera, L. 



rotundifolia, L. 



Sphagnous swamps, &c. ; Thompson's. Frequent. 

 July, 

 longifolia, L. 



Sphagnous swamps; Thompson's. Frequent. July. 



