MEMOIRS FROM THE DEPARTMENT OF BOTANY OF COLUMBIA UNIVERSITY 181 
It is a rather rare plant of northern distribution, and has been confused with F. Vir- 
geviana and F. Americana. In habit it most resembles the southern variety of the former, 
but differs by its longer sepals, elongated fruit and more slender and fewer-flowered scape. 
Michaux’s description probably includes both this species, /. Virginiana and F. Terrae- 
novae. The specimens in his herbarium are in flower only, but they indicate a small- 
sized plant and must belong to either /. Terrae-novae or to the species for which the name 
is used here. In this respect the author has followed Dr. N. L. Britton, who was the 
first to point out the differences between this species and F. Virginiana. 
New York: N. L. Britton, 1894; Anna M. Vail, 1891 
Mame: (Mt. Desert), E. L. Rand, 1892. 
Canada: John I. Northrop, No. 225, 1887; Richardson. 
Newfoundland: Rey. A. C. Waghorne, No. 7, 1893. 
Nova Scotia: (?) Dr. J. Dwight, 1894. 
Michigan: A. A. Crozier, 1886. 
14. Fragaria prolifica Baker & Rydb. 
Rootstock short and very thick, crowned by numerous leaves and several short 
scapes. Leaves rather thin and dark green, glabrous above, sparingly silky or gla- 
brate and strongly veined beneath, 3-7 em. long; petioles 5-10 em. long, appressed 
silky-strigose; leaflets obovate, coarsely toothed, often somewhat petiolate; the lateral 
ones oblique. Runners very numerous and rather stout. Scapes many-flowered, ap- 
pressed-strigose, seldom over 1 dm. high. Flowers about 1 cm. in diameter; sepals and 
bractlets ovate-lanceolate ; petals obovate, a little exceeding the sepals. Fruit hemi- 
spheric, 1-1.5 em. in diameter; achenes set in pits. 
It is nearest related to F. Virginiana, but differs in the smaller flowers, shorter and 
broader sepals, low scapes, strongly veined leaves and nearly appressed pubescence of the 
scapes and petioles. It is apparently confined to Colorado. 
Mr. Baker collected the type specimens in the rich region in the neighborhood of 
Mt. Richtophen. 
Colorado: C. F. Baker, No. 28, 1896 (8200-10000 ft., altitude); J. Ball, 1884 
(7-9000 ft.) ; Geo. Engelmann, 1874. 
15. Fragaria pumila. 
Fragaria Virginiana Rydb. Cont. U. 8. Nat. Herb. 8: 496. 1896. 
Rootstock very short and thick. Leaves rather small and thick, dark green and 
silky above when young, soon glabrate, silky-strigose and finely puberulent beneath ; 
petioles 2-4 cm. long, densely appressed silky-strigose, at least when young; leaflets ob- 
