ROSACEZ. 143 
oblanceolate acute and not toothed. Stipules with the free 
portion ovate-lanceolate-acuminate. . Flowers { inch across, 3 to 9 
in the terminal corymb. Calyx-tube hemispherical-cupshaped ; 
segments lanceolate, acute, outer ones linear -strapshaped. 
Petals when present linear-oblanceolate, pale yellow. Receptacle 
hairy. Achenes ovoid, pale yellow, shining. Plant dull glaucous- 
green, more or less thickly clothed with long rather stiff hairs. 
Mr. W. Wilson is surely right in referring this plant to the 
genus Potentilla. It was natural for Linnzus and the botanists 
who followed his system, to separate it, on account of the fewer 
stamens and pistils; but as the number of these is not constant, 
there can be no doubt it is merely a Potentilla with the number 
of these organs diminished. 
Procumbent Sibbaldia. 
French, Sibbaldie couchée. 
Sus-Genus IIl.—EU-POTENTILLA. 
Petals obovate or orbicular, notched or rounded at the apex. 
Stamens more than 10, generally very numerous. Receptacle 
more or less convex, dry. Carpels very numerous. 
Section J.—LATERALES. Doll. 
Flowering-stems annual, lateral, produced below a barren shoot 
or tuft of leaves, which terminates each division of the rootstock. 
SPECIES II—POTENTILLA FRAGARIASTRUM. Zirh. 
PuateE CCCCXXVII. 
_ P. sterilis, Garcke, Fl. v. N. & Mit. Deutschl. ed. vi. p. 132. 
Fragaria sterilis, Zinn. Sm. Eng. Bot. No. 1785. 
Flowering-stems elongated, procumbent. Leaves ternate ; 
leaflets rhomboidal-oval, crenate-serrate or serrate. Flowers few, 
solitary, opposite the leaves and terminal, on long peduncles. 
Outer calyx-segments shorter than the inner. Petals slightly 
longer than the calyx, obovate, notched. Receptacle with long 
hairs. Achenes faintly reticulated, downy at the base. 
In open woods and on hedge-banks, and in gravelly waste places. 
Common in England, more scarce in Scotland, where it has not 
been recorded North of Ross-shire. 
England, Scotland, Ireland. Perennial. Early Spring. 
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