176 MEMOIRS FROM THE DEPARTMENT OF BOTANY OF COLUMBIA UNIVERSITY 



Uoh : S. Watson (King's Exp.), No. 321, 1869; M. E. Jones, No. 5347, 1894. 

 Wyoming: (Teton Range), Dr. Coulter, 1872. 

 Colorado: J. Ball, 1884. 



8. Fragaiia Americana (Porter) Britton. 



Fragaria vcsca Pursh, Fl. Am. Sept. 357 (mainly) 1814. Not L} 



Nutt. Gen. 1 : 311 ; Eat. Man. Ed. 2. 249 ; Ed. 3, 282; Beck, Bot. Ed. 2, 98 (in 

 part); Torr. Fl. N. Y. 1: 212; Gray, Man. 124; Ed. 2, 120; Ed. 5, 156 (in part) ; 

 Wood, Class Book 1855 : 253; 1863: 341 ; Torr. Pac. K R Rep. 4 : 85 (in part, N. 

 j\lex. spec.) ; Coult. Man. Rocky Mts. 83 ; Porter & Coult. Fl. Colo. 35 ; Wats. & Coult. 

 in Gray Man. Ed. 6 : 158 ; Coult. U. S. Geol. Surv. 1872 : 765. 



Hook. Fl. Bor. Am. 1: 184, 1833 (in part); Prov. Fl. Can. 1: 186 (in part). 

 Macoun, Cat. Can. PL 1: 135. 



Fragaria Canadensis Eat. Man. Ed. 7, 306. In part. 1836. Not l\Iichx. 1803. 



Eat. & Wright, N. Am. Bot. 246. 



Fragaria vcsca ;J Torr. & Gray, Fl. N. A. 1: 448. 1840. 



Fragaria vcsca var. Americana Porter, Bull. Torr. Bot. Club, 17 : 15. 1890. 



Bailey in Gray, F. F. & G. Bot. Rev. Ed. 152; Rydb. Fl. Neb. 21 : 18 ; Cont. U. S. 

 Nat. Herb. 3 : 157. 



Fragaria Americana Britton, Bull. Torr. Bot. Club, 19 : 222. 1892. 



Illusteatiox : Britton & Brown, 111. Fl. 2: /. 1911. 



Rootstock shoi't but not thick. Lea^'es very thin, very soon glabrate on both sides ; 

 petioles slender, 5-10 cm. long, sparingly silky, with less spreading hairs than in 

 the related species, or glabrate; leaflets 3-8 cm. long, rhombic-obovate, mostly acute, 

 sharply and deeph' serrate, the lateral ones oblique at the base. Runners very slender 

 and long. Scape slender, seldom over 1.5 dm. long, sparingly silky with slightly spread- 

 ing or sometimes divaricate hairs, seldom much exceeding the leaves, very rarely leafy- 

 bracteate. Fruit elongated-ovoid, .5-.75 cm. in diameter and 1-1.5 cm. long, red; 

 achenes superficial. 



It is, next to F. Virginiami, our most common strawberry, extending from New- 

 foundland and Mrginia to New ^lexico. It has been confounded with F. vesca, but 

 differs in the thinner and sharper-toothed leaves, elongated fruit, slender habit, and 

 finer, scantier and mure appressed pubescence. 



g. Fragaria sibbaldifolia. 



Fragaria vesca Coville, Cont. U. S. Nat. Herb. 4 : 95. 1893. Not L. 



'Most of these references may also include the tme F. vesca. 



