Part 4, 1908] ROSACEAE 363 
serrate, 2-4 cm. long ; runners very long and rather slender; scape rather shorter than the 
leaves, 4-10 cm. high, with spreading hairs, bat very soon glabrate, 2-4-flowered ; flowers 
1-1.5 cm, in diameter; sepals lanceolate, long-acuminate ; petals broadly obovate, exceed- 
ing the sepals by about a half; fruit oblong-conic, 6-7 mm. in diameter and 1-1.25 cm. 
long; achenes set in pits. 
TYPE LocaLiry: Hudson Bay. 
DISTRIBUTION : Newfoundland to Mackenzie, New York, and Michigan. 
ILLUSTRATION: Britt. & Brown, Ill. Fl. f. 1909. 
20. Fragaria prolifica Baker & Rydb.; Rydb. Mem. Dep. Bot. 
Columbia Univ. 2: 181. 1898. 
Rootstock short and very thick, crowned by numerous leaves and several short scapes ; 
leaves rather thin and dark-green, glabrous above, sparingly silky or glabrate and strongly 
veined beneath, 3-7 cm. long; petioles 5-10 cm. long, appressed silky-strigose; leaflets 
obovate, rounded at the apex, coarsely toothed with very broad teeth, often somewhat petio- 
lulate, the lateral ones oblique; runners very numerous and rather stout; scapes many- 
flowered, appressed-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 
hemispheric, 1-1.5 cm. in diameter; achenes set in pits. 
TYPE LOCALITY : Neighborhood of Mt. Richthofen, Colorado. 
DISTRIBUTION : Mountains of Colorado. 
21. Fragaria pumila Rydb. Mem. Dep. Bot. Columbia 
Univ. 2: 181. 1898. 
Fragaria virginiana Rydb. Contr. U. S. Nat. Herb. 3: 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 
em. long, densely appressed silky-strigose, at least when young; leaflets oblong or nar- 
rowly obovate, 1-3 cm. long, crenate, the lateral ones only slightly oblique; runners few 
and short; scape few-flowered, usually about 5 cm. long, silky-strigose, seldom leafy- 
bracteate ; flowers 1-1.5 cm. in diameter; bractlets and sepals lanceolate, about 5 mm. 
long; petals obovate, exceeding the sepals by about a half; fruit scarcely 1 cm. in diame- 
ter; achenes set in pits. 
TYPE LOCALITY: Custer, Black Hills, South Dakota. 
DISTRIBUTION : From North Dakota to Colorado. 
22. Fragaria multicipita Fernald, Rhodora 10: 49. 1908. 
Rootstock short and cespitose; petioles 2-7 cm. long, slender, appressed-silky ; leaflets 
sessile, 1-2.5 cm. long, green and slightly strigose or glabrate above, paler and sparingly 
appressed-silky beneath, the terminal one cuneate-obovate, entire below the rounded or 
subtruncate, coarsely serrate ends; lateral leaflets oblique, the inner side entire towards the 
base, the outer rounded and toothed to near the base; scape slender, appressed-silky, 
shorter than or equaling the petioles, 14-flowered; bractlets lanceolate; fruiting pedicels 
recurved; bractlets lanceolate, acute, about 5 mm. long and about equaling the ovate acu- 
minate sepals; fruit subglobose, 5-10 mm. long; achenes in pits. 
TypE LocaLity: Gravelly and sandy beaches and bars of the River Ste. Anne des Monts, 
uebec. . 
2 DISTRIBUTION : Known only from the type locality. 
23. Fragaria Terrae-Novae Rydb. Mem. Dep. Bot. Columbia 
Univ. 2: 182. 1898. 
? Fragaria virginiana Hook. FI. Bor. Am. 1: 185. 1833. 
Rootstock short but not very thick; leaves rather thin, glabrate above, slightly silky 
beneath; petioles rather slender, 3-15 cm. long, appressed-silky when young, usually 
nearly glabrous in age, very rarely with somewhat spreading pubescence; leaflets 2-5 cm. 
long, obovate, serrate, the Jateral ones slightly oblique at the base, all subsessile; runners 
? 
