No. 14.] FLOWERING PLANTS AND FERNS. 233 



Rare. East Granby, rocky slopes of Peak Mt. (A. W. 

 Driggs ) . June —July. 



Potentilla argentea L. (silvery). 

 Silvery or Hoary Cinquefoil. 



Frequent to common. Dry, sterile or sandy open places. 

 Mid-May — Sept. 



Potentilla intermedia L. (intermediate). 

 Downy Cinquefoil. 



Rare. Roadsides and waste ground in Glastonbury (Bis- 

 sell), East Haven (Harger), Naugatuck (A. E. Blewitt). 

 June — July. Native of Europe. 



Potentilla recta L. (upright). 

 Potentilla sulphur ea Lam. 



Rare. Dry fields and wastes: Norwich (Mrs. E. E. 

 Rogers), Southington (Andrews, Bissell), Bristol (W. A. 

 Terry), Naugatuck (A. E. Blewitt), Newtown (J. M. Otis), 

 Kent (Eames & C. C. Godfrey). June — July. Adventive 

 from Europe. 



Potentilla palustris (L.) Scop, (of marshes). 

 Comaniui palnstre L. 



Marsh or Purple Cinquefoil or Five-finger. Bog Straw- 

 berry. Purple-wort. 



Rare or local. Boggy swamps and borders of lakes: 

 New Haven (D. C. Eaton), East Granby (Weatherby), Ham- 

 den, Litchfield and Danbury (Harger), Salisbury, plentiful 

 about Twin Lakes (Bissell, Mrs. C. S. Phelps et al.), June — 

 July. 



Potentilla fruticosa L. (shrubby). 

 Dasiphora fruticosa Rydb. 

 Hardback. Goshen Hardback. Shrubby Cinquefoil. 



Low fields, wet pastures and boggy swamps. Rare near 

 the coast: East Lyme (Miss A. M. Ryon), Guilford (G. H. 

 Bartlett), New Haven (G. W. Hawes). Occasional elsewhere, 

 except in Litchfield County, where it is common and often a 

 serious pest in low pastures. June — Sept. 



Potentilla tridentata Ait. (three-toothed). 

 Sihbaldiopsis tridentata Rydb. 

 Three-toothed or Mountain Cinquefoil or Five-finger. 



