246 Proceedings Port. Soe. Nat. Hist. 



PoTENTiLLA PENNSYLVANiCA L. Infrequent. Sunny hill- 

 side, ]^askeag Point, Brooklin (No. 3019) ; open fields 

 near serpentine quarry^ Reach, Deer Isle (No. 2142) 

 headlands, Dnnham's Point. Deer Isle (No. 2232) 

 *near village, Isle an Haut (J. C. Arthur, N. T. Kidder) 



PoTENTiLLA ARGENTEA L, Frequent on dry sterile soil. 



PoTENTiLLA PALusTRis (L.) Scop., var. viLEOSA (Pers.) 

 Lehm.^ Very common on boggy shore of Torrey Pond, 

 Deer Isle (No. 2183) ; Merchants Island, Isle an Hant 

 (N. T. Kidder). 



PoTEXTiLLA TRiDENTATxV Ait. Common in sterile fields on 

 headlands and exposed hilltops. 



PoTEXTiLLA PACiFiCA Howcll.^ {PotentUla Anseriva L.) 

 Abundant on shores and in salt marshes. 



PoTEXTILLA CANADENSIS L,, Var. SIMPLEX (Michx.) T. & G. 



Very common in dry fields, roadsides and waste places. 



Geum rivale L. Occasional in wet meadows. Naskeag 

 Point, Brooklin (No. 1450) ; North Brooklin (No. 2912) ; 

 South Deer Isle (No. 1826). 



RuBus idaeus L., var. canadensis Richards.' [var. aculeatis- 

 simus (C. A. Mey.) Regel & Tiling.] Frequent in 

 thickets and fields and very abundant in clearings. 



RuBus pubescens Raf.' [Buhiis triflorus Richards.] Com- 

 mon in swampy w^oods. 



1. Stirp. Pug. 9: 44 (1851). See Fernald, M. L., and Long, B., 



Rhodora 16: 5-11 (1914). 



2. Fl. N. W. Am. 1: 179 (1898). See Robinson, B. L., and Fernald, 



M. L., Rhodora 11: 48 (1909). 



3. Frankl. Jour. 739 (823). See Blanchard, W. H., Rhodora 



11: 236 (1909). 



4. Med. Repos. N. Y. Ser. Ill, 2: 333 (1811). See Blanhard 1. c. 



