Parr 4, 1908] ROSACEAE 3803 
4. Potentilla pumila Poir. in Lam. Encyc. 5: 594. 1804. 
Potentilla canadensis Michx. Fl. Bor. Am. 1: 303. 1803. Not P. canadensis L. 1753. 
Potentilla canadensis pumila T. & G. Fl. N. Am. 1: 443. 1840. 
Callionta pumila Greene, Leaflets 1: 238. 1906. 
Perennial, with a short rootstock; stems at flowering time very short and upright, less 
than 1 dm. high, later on producing longer runner-like and prostrate branches, densely 
silky-strigose ; stipules ovate or lanceolate, entire or toothed, 1 cm. long or less; basal 
leaves with silky-strigose petioles 2-4 cm. long, digitately 5-foliolate ; leaflets obovate-cune- 
ate, about 2cm. long, densely silky-strigose, coarsely serrate towards the apex or at most above 
the middle only; flowers few, 6-10 mm. in diameter, axillary, the first one generally from 
the axil of the first stem-leaf, with slender strigose pedicels 3-5 cm. long ; hypanthium 
densely silky-strigose ; bractlets and sepals subequal, narrowly lanceolate, 3-5 mm. long; 
‘petals yellow, rounded-obovate, rounded or truncate or slightly emarginate at the apex, 4-7 
mim. long, a little exceeding the sepals; stamens about 20; styles slender, filiform. 
TYPE LOCALITY : North America. 
DISTRIBUTION : Sandy or dry soil from Maine to Georgia, Ohio, and Ontario. 
ILLUSTRATIONS : Nestler, Monog. Potent. p/. 10, f. 1 (as P. canadensis) ; Britt. & Brown, Ill. 
FL. f. 1935a ; Mem. Dep. Bot. Columbia Univ. 2: 91.18, f. 1-2. 
5. Potentilla canadensis I,. Sp. Pl. 498. 1753. 
Fragaria canadensis Crantz, Inst. 2: 178. 1766. 
Potentilla sarmentosa Muhl.; Willd. Enum. 554. 1809. 
Callionia canadensis Greene, Leaflets 1: 238. 1906. 
Perennial, with a short thick rootstock ; stems few, slender, silky-villous, generally with 
spreading pubescence, tinged with red, at first upright or assurgent, later decumbent or 
prostrate and flagelliform, 4-6 dm. long; stipules ovate or lanceolate, often 2-5-cleft or 
‘toothed, with acute divisions ; basal leaves digitately 5-foliolate or 3-foliolate with the lateral 
leaflets divided in two; petioles 3-10 cm. long, with long spreading pubescence ; leaflets 
2-5 cm. long, obovate-oblanceolate or oval, coarsely serrate, slightly silky on both sides or 
‘glabrate above, usually obtuse or rounded at the apex ; stem-leaves similar but short-petioled 
and often somewhat fascicled; flowers solitary, the first one from the axil of the second 
or some subsequent stem-leaf, on slender hirsute pedicels 3-10 cm. long ; hypanthium silky, 
‘in fruit about 8 mm. in diameter ; bractlets linear-lanceolate, about equaling the ovate or lan- 
-ceolate sepals, 4-5 mm. long; petals yellow, obcordate, exceeding the sepals by about one 
third, 5-6 mm.long; stamens about 20. 
TYPE LOCALITY : Canada. . _ : 
DisTRIBUTION: Dry ground, New Brunswick to Wisconsin, eastern Texas, Alabama, and North 
‘Carolina. 
ILLUSTRATIONS: Britt. & Brown, Ill. Fl. f 1935; Mem. Dep. Bot. Columbia Univ. 2: pi. 4. 
6. Potentilla caroliniana Poir. in Lam. Encyc. 5: 595. 1804. 
Perennial, with a short rootstock ; stems prostrate, reddish and usually rooting at the 
nodes, 3-10 dm. long with spreading pubescence; basal leaves digitately 5-foliolate; peti- 
-oles 2-8 cm. long, with coarse usually reflexed hairs; leaflets broadly obovate with a 
cuneate base, coarsely toothed above, 1.5-4 cm. long, usually firm, loosely pubescent with 
long and spreading hairs on both sides; stem-leaves similar but small, short-petioled and 
often 3-foliolate ; stipules small, lanceolate; pedicels 4-6 cm. long, with spreading hairs ; 
‘bractlets and sepals lanceolate, 3-4 mm. long; petals yellow, obcordate, one third longer 
than the sepals. 
TYPE LOCALITY: Carolina. Cee . : . 
DISTRIBUTION : Dry woods, from southern Virginia to Missouri, Tennessee, and Georgia. 
II. Heterosepalae. Plant decumbent, in habit much resembling certain species of the 
following group, but evidently perennial; the bractlets nearly always 3-cleft, which charac- 
iter has given name to the species and the group. 
