MEMOIRS FROM THE DEPARTMENT OF BOTANY OF COLUMBIA UNIVERSITY 183 
17. Fragaria glauca (Wats.). 
Fragaria Virginiana (2) var. glauca Wats. Bot. King’s Exp. 5: 85. 1871. 
Coult. Man. Rocky Mts. 83. 
Fragaria vesca var. Americana Rydb. Cont. U. 8. 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 em. long, sparingly 
and appressed silky, or glabrate in age; leaflets broadly obovate, 83-5 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 em. in diam- 
eter; sepals and bractlets oblong-lanceolate, acute ; petals obovate, exceeding the sepals 
by about a half. Fruit hemispheric, 1-1.25 em. in diameter; achenes set in rather 
shallow pits. 
It much resembles /. 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 
tiver to Colorado and westward to Nevada. 
Utah: Watson (King’s Exp.), No. 322, 1869. 
Nevada: Wheeler, 1872. 
Idaho: 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. 8. Onion, 1861-2. 
South Dakota: (Black Hills) Rydberg, No. 662, 1892. 
Colorado: C. 8. 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. 
18. Fragaria pauciflora. 
Fragaria Canadensis Richards. Frankl. Journ. App. 20. In part. 1823. 
3ritton, Bull. Torr. Bot. Club, 19: 222. In part. 
Fragaria vesca form. Rydb. Cont. U. 8. 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 em. long; leaflets cuneate, subsessile, coarsely toothed above the 
middle, the lateral ones scarcely at all oblique at the base. Runners rather few and 
