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 sulphurea 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). 

 Comarum palustre 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). 

 Sibbaldiopsis tridentata Rydb. 

 Three-toothed or Mountain Cinquefoil or Five-finger. 



