MEMOIRS FROM THE DEPARTMENT OF BOTANY OF COLUMBIA UNIVERSITY 183 



17. Fragaria glauca (Wats.). 



Fragaria Virginiarid (?) var. glanca Wats. Bot. King's Exp. 5 : 85. 1871. 



Coult. Man. Rock}- Mts. 83. 



Fragaria vesca var. Aynericana Eydb. Cont. U. S. Nat. Herb. 3 : 496. 1896. 



Rootstock rather short, but not very thick. Leaves thin, glaucous and almost gla- 

 brous above, silky or at last glabrate beneath; petioles slender, 5-15 cm. long, sparingly 

 and appressed silky, or glabrate in age ; leaflets broadly obovate, 3-5 cm. long, evidently 

 petiolate, coarsely toothed, the lateral ones very oblique at the base. Runners long and 

 slender, almost glabrous. Scape slender, rarely exceeding the leaves and seldom with a 

 foliaceous bract, appressed-silky or glabrate, few-flowered. Flowers 1.5-2 cm. in diam- 

 eter ; sepals and bractlets oblong-lanceolate, acute ; petals obovate, exceeding the sepals 

 by about a half. Fruit hemispheric, 1-1.25 cm. in diameter; achenes set in rather 

 shallow pits. 



It much resembles F. platypetala, and perhaps the two might be regarded as forms 

 of the same species ; but as in F. glauca the thinner and broader leaflets, the lateral ones 

 more oblique, are always accompanied by smaller flowers with narrower petals, a more 

 or less appressed pubescence on the scape and petioles, and a more scanty one on the 

 leaves, I think they are better kept distinct. Its range extends from the Mackenzie 

 River to Colorado and westward to Nevada. 



Utah: Watson (King's Exp..), No. 322, 1869. 



Nevada: Wheeler, 1872. 



Idalio: L. F. Henderson, No. 3596, 1895; J. M. Coulter, 1872. 



Montana: J. N. Rose, No. 84 (at least in part), 1893 ; F. W. Anderson, 1888. 



Northwest Territory : (Fort Simpson) I. S. Onion, 1861-2. 



South Dakota: (Black Hills) Rydberg, No. 662, 1892. 



Colorado: C. S. Sheldon, 1884; Dr. E. Penard, No. 155, 1891 ; George Smith, 1871 ; 

 Mr. and Mrs. G. H. Hicks, No. 366, 1890 ; C. F. Baker, No. 27, 1896. 



i8. Fragaria pauciflora. 



Fragaria Canadensis Richards. Frank!. Journ. App. 20. In part. 1823. 



Britton, Bull. Torr. Bot. Club, 19: 222. In part. 



Fragaria vesca form. Rydb. Cont. U. S. Nat. Herb. 3 : 496. 1896. 



Rootstock rather slender. Leaves thin and glaucous, almost glabrous above, and 

 soon glabrate beneath ; petioles and scape slender, sparingly appressed-silky or nearly 

 glabrous, slender, 5-15 cm. long; leaflets cuneate, subsessile, coarsely toothed above the 

 middle, the lateral ones scarcely at all oblique at the base. Runners rather few and 



