364 NORTH AMERICAN FLORA [VoLlomy 22 
few and slender; scape slender, at first silky-strigose, glabrate in age, few-flowered, usu- 
ally without a foliaceous bract; flowers 1.5-2 cm.in diameter; sepals and bractlets lanceo- 
late, acuminate; petals broadly obovate, often nearly twice the sepals; fruit subglobose, 
about 1 cm. in diameter; achenes set in pits. 
TYPE LOCALITY : Newfoundland. 
DISTRIBUTION : From Labrador and Newfoundland to Ontario and Massachusetts, 
24. Fragaria glauca (S. Wats.) Rydb. Mem. Dep. Bot. Columbia 
Univ. 2: 183. 1898. 
Fragaria virginiana (?) glauca S. Wats. Bot. King’s Expl. 85. 1871. 
Rootstock rather short but not very thick ; leaves thin, glaucous and almost glabrous 
above, silky or at last glabrate beneath; petioles slender, 5-15 cm. long, sparingly ap- 
pressed-silky, or glabrate in age ; leaflets broadly obovate, 3-5 cm, long, evidently petiolulate, 
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 diameter; sepals and 
bractlets oblong-lanceolate, acute; petals obovate, exceeding the sepals by about a half; 
fruit subglobose, 1-1.25 cm. in diameter; achenes set in pits. 
TYPE LOCALITY: Wahsatch Mountains, Utah. 
DISTRIBUTION : From British Columbia to Nevada, New Mexico, South Dakota, and Mackenzie. 
25. Fragaria pauciflora Rydb. Mem. Dep. Bot. Columbia 
Univ. 2: 183. 1898. 
Fragaria canadensis Richards. Frankl. eats App. 20, in part. 1823, 
Fragaria vesca Rydb. Contr. 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 slender; scape 
2-4-flowered, seldom exceeding the leaves; flowers 1-1.5 cm. in diameter; bractlets and 
sepals narrowly lanceolate; petals obovate; fruit subglobose, about 1 cm. in diameter ; 
achenes set in very deep pits. 
TYPE LocaLity : Gallatin Valley, Montana. 
DISTRIBUTION : From Hudson Bay to Colorado and Alberta. 
26. Fragaria ovalis (Lehm.) Rydb. Bull. Torrey Club 
33: 143. 1906. 
Potentilla ovalis Lehm, Delect. Sem. Hort. Hamb. 1849: 9, 1849. 
Fragaria firma Rydb. Mem. Dep. Bot. Columbia Univ. 2: 184. 1898. 
Rootstock short and thick; leaves thick and firm, somewhat glaucous, glabrate above, 
rather densely silky beneath; petioles rather stout, 1-4 cm. long, densely silky-strigose ; 
leaflets subsessile or short-petiolulate, oblong or cuneate, 2-3 cm. long, toothed above the 
middle, the lateral ones scarcely at all oblique at the base; scape short, densely silky- 
strigose, not much over 5 cm. high; runners rather numerous, long and stout; flowers 
1-1.5 cm. in diameter; bractlets and sepals lanceolate, the former much smaller; petals 
obovate, exceeding the sepals by a half; fruit subglobose, about 1 cm. in diameter ; achenes 
set in pits. 
TYPE LOCALITY: Originally given as ‘‘ Mexico,” but Lehmann’s type, z. ¢., Fendler 206, was 
collected in New Mexico. 
DISTRIBUTION : From Arizona and New Mexico to Wyoming. 
ILLUSTRATION : Lehm. Rev. Potent. p/. 50. 
27. Fragaria yukonensis Rydberg, sp. nov. 
Rootstock short; leaves thick and firm, glabrous or nearly so above, silky-strigose, 
pale and somewhat glaucous beneath; petioles 2-5 cm. long, densely silky-strigose ; leaflets 
obovate or obovate-cuneate, 2-4 cm. long, coarsely toothed above the middle with ovate teeth, 
