216 ROSACEAE. [Vor. II- 
22. Potentilla Anserina L. Silver-weed. Wild or Goose-tansy. (Fig. 1934.) 
Potentilla Anserina I,, Sp. Pl. 495. 1753. 
Herbaceous, tufted, spreading by slender runners 1° 
3° long. Stipules membranous; leaves petioled, pin- 
nate, 3-18’ long; leaflets 7-25, oblong, oblanceolate 
or obovate, obtuse, the lower generally smaller, often 
with still smaller ones interspersed, all sharply serrate, 
nearly glabrous above, white and silky-pubescent be- 
neath; peduncles axillary, solitary, slender, erect, 1- 
flowered, about equalling the leaves; flower yellow, 
8’/-12’’ broad; petals broadly oval or obovate, entire or 
emarginate, exceeding the ovate acute calyx-lobes and 
oval bractlets; stamens about 20; style filiform, lateral; 
receptacle villous; achenes glabrous, 
On shores and salt meadows, New Jersey to Greenland, 
west to Nebraska, British Columbia and Alaska, south in 
the Rocky Mountains to New Mexico and to California. 
Also in Europe and Asia, Goose-grass. May-Sept. 
Potentilla Anserina Egédii (Wormsk.) T. & G. Fl. N. A. 1: 
: * 444. 1840. 
Potentilla Egedit Wormsk. Fl. Dan. f/. 7578. 
_ Smaller, less pubescent, very slender; leaflets 5-0, aecnly 
incised; peduncles short. Massachusetts to Greenland. 
23. Potentilla Canadénsis IL. Five-finger. 
(Fig. 1935.) 
Potentilla Canadensis Y,. Sp. Pl. 498. 1753. 
P. Canadensis var. pumila T. & G. Fl. N. A. 1: 443. 1840. 
Polentilla simplex Michx. Fl. Bor, Am, 1: 303. 1803. 
Herbaceous, tufted, spreading by slender runners, 3/— 
2° long. Stipules lanceolate, acute, entire or few- 
toothed; leaves petioled, digitately 5-foliolate (rarely 3- 
4-foliolate); leaflets oblanceolate or oblong, obtuse at 
the apex, narrowed at the base, 6’’-1’ long, incisely ser- 
rate, at least above; peduncles slender, axillary, 1-Aow- 
ered; flower yellow, 3’’-7’’ broad; petals 5, broadly oval, 
slightly longer than the acute calyx-lobes and linear- 
lanceolate bractlets; stamens about 20; style terminal, 
Z 
Z 
y | 
filiform; achenes glabrous; receptacle villous. Zi \ ; 
In dry soil, Quebec to Georgia, Minnesota and the Indian aS a 4 
Territory. Ascends to 6300 ft. in North Carolina. April- Ss AIT 
Aug. Called also Wild Strawberry. SAIN 
Potentilla réptans I,., a European species, collected on tf ir AN } 
ballast at Camden, N. J., differs in its more closely creeping 7 oa \ 3 
habit, smaller leaves, and very broad elliptic bractlets. 5 
24. Potentilla nemordalis Nestl. Wood 
Cinquefoil. (Fig. 1936.) 
Tormentilla reptans I,. Sp. Pl. 500. 1753. Not P. 
replans l,. 
Potentilla nemoralis Nestl. Mon. Pot. 65. 1816. 
Diffusely branched, trailing or ascending, very 
slender, somewhat pubescent, 6/—2° long. Stip- 
ules small, foliaceous, entire or dentate; leaves 
petioled, 3-foliolate (rarely 5-foliolate); leaflets 
oblanceolate or obovate, obtuse at the apex, cune- 
ate at the base, sharply dentate above; pedun- 
cles axillary, filiform, usually much exceedipg the 
leaves, 1-flowered; flowers 3/’-4’’ broad, yellow, 
gencrally 4-parted; petals obovate, emarginate, or 
rounded, exceeding the acute calyx lobes and 
bractlets; achenes glabrous; receptacle pubescent. 
Labrador (according to Hooker). Common im 
Europe. Called also Trailing Tormentil. Summer. 
