ROSACEvE. XII. POTENTILLA. 



557 



Native of the islands of tlic Arctic sea ; shores of the mainland 

 between the Coppermine and Mackenzie rivers. Corolla yellow. 

 Pretty Cinquefoil. PI. procumbent. 



102 P. RUTHE'NICA (Willd. spec. 1079.) stem erect, diffuse, 

 pilose ; radical leaves quinately-pinnate, cauline leaves ternate ; 

 leaflets hairy, obovate, unequally and deeply serrated ; stipulas 

 oblong-lanceolate, outer side toothed ; petals shorter than the 

 calyx. If.. H. Native of Siberia. Flowers small, yellow, 

 panicled on the tops of the branches pedicels hairy, primary 

 ones solitary in the forks of the stem. 



Russian Cinquefoil. Fl. May, June. Clt. 1799. PI. 1 to 2 ft. 



103 P. DIFFI/SA (Willd. enuin 555.) stem diffuse, beset with 

 spreading pili ; radical leaves quinately pinnate, cauline ones 

 ternate ; leaflets lanceolate, unequally and coarsely serrated, 

 In^et with spreading pili on botli surfaces ; primary pedicels 

 solitary; petals retuse, shorler than the calyx. If. H. Native 

 country unknown. Flowers small, yellow, panicled at the tops 

 of the branches. 



Diffuse Cinquefoil. Fl. May, July. Clt. 1817. PI. 1 foot. 



101 P. DOMBE'YI (Nestl. pot. p. 38. t. 5. f. 2.) stems decum- 

 bent, pilose ; leaves quinately' pinnate, upper ones ternate ; 

 leaflets obovate, cuneiform, hardly pilose, serrated at the apex; 

 stipulas lanceolate, acute, entire ; petals a little longer than the 

 calyx ; receptacle hairy ; carpels glabrous. If. . H. Native of 

 Chili. Corolla yellow. 



Dombey's Cinquefoil. PI. decumbent. 



4. Leaves pinnate . Flowers yellow. 



105 P. BIFU'RCA (Lin. spec. 711.) roots creeping; stems as- 

 cending ; leaflets about equal in size, bifid or entire, outer ones 

 confluent ; stipulas oblong, entire, or a little cut ; flowers sub- 

 corymbose ; pedicels pilose ; petals obovate, entire, longer than 

 the calyx. Tf. . H. Native of Iberia, Siberia, and Silesia. 

 Gmel. itin. 1. t. 37. f. 1. Corolla pale yellow. 



Car. ft, subsericea (Ser. mss. in D. C. prod. 2. p. 580.) stems, 

 leaves, and calyxes smaller, and clothed with rather silky down. 

 If.. H. Native about Astracan. 



Var. y, monstrbsa (Fisch. gor. in litt. Led. fl. alt. 2. p. 246.) 

 branches much crowded, short. "If.. H. Native of Dahuria 

 and Altaia, in sterile salt places. 



Forked-leaved Cinquefoil. Fl. May, Ju. Clt. 1773. PI. ft. 



106 P. ASTRAGALIFOLIA (Led. fl. ross. alt. ill. t. 328. fl. alt. 2. 

 p. 246.) plant clothed with silky villi ; stems prostrate, nearly 

 leafless ; radical leaves pinnate, usually with 6 pairs of leaflets ; 

 leaflets oblong, quite entire, or 2-3-parted, upper ones rather 

 confluent, terminal or odd one trifid ; cauline leaves small, sim- 

 ple, entire, or wanting ; stipulas oblong, entire, or cut a little ; 

 petals nearly orbicular, twice the length of the calyx. I/ . H. 

 Native of Altaia, in sterile deserts on the right bank of the river 

 Tschuja. Flowers pale yellow, 2-4, terminal. 



J\I///c-vetch-!eaved Cinquefoil. Fl. June. PI. prostrate. 



107 P. JAPONICA (Blum, bijdr. 1105.) stolons decumbent; 

 radical leaves pinnate, usually with 3 pairs of leaflets, beset 

 with strigose villi ; cauline leaves ternate ; leaflets obovate, 

 sharply serrated, outer ones largest and approximate ; stipulas 

 trifid at the apex. 1^. H. Native of Japan. 



Japan Cinquefoil. PI. creeping. 



108 P. GEOI'DES (Bieb. fl. taur. 1. p. 404.) plant hairy ; stems 

 erect; leaves pinnate; leaflets roundish, a little lobed, hairy, 

 outer ones the largest ; stipulas multifid ; panicle somewhat di- 

 chotomous ; calycine segments obtuse, denticulated at the apex ; 

 petals obovate, entire, about equal in length to the calyx. If.. H. 

 Native of Tauria, among rocks towards the top of Mount 

 Tschaturdag. Lehm. pot. t. 2. P. fragarioides, Habl. 147. but 

 not of Lin. Corolla yellow, about the size of those of Geum 

 urbanum. 



Geum-like Cinquefoil. Fl. Ju. Jul. Clt. 1820. PI. 1 to l^ft. 



109 P. FRAGARIOI'DES (Lin. spec. 710.) stem erect, dichoto- 

 mous, with creeping stolons issuing from the base ; radical leaves 

 pinnate, cauline ones ternate ; leaflets oval, sharply serrated, 

 silky-pilose, outer ones larger and more confluent ; stipulas 

 serrated ; petals obovate-cuneiform, a little longer than the 

 calyx. If. . H. Native of Siberia. Lehm. pot. t. 4. Gmel. 

 fl. sib. 3. t. 34. f. 2. P. poterioides, Schlecht. berol. mag. ann. 

 7. p. 286. Plant pilose. Flowers yellow, in corymbose pa- 

 nicles. 



Strawberry-like Cinquefoil. Fl. May, Ju. Clt. 1773. PI. | ft. 



110 P. PIMPINELLOI'DES (Lin. spec. 711 ) stem erect, pilose ; 

 leaves pinnate ; leaflets about equal, roundish, dentately serrated, 

 pilose ; stipulas cut ; petals obcordate, a little longer than the 

 calyx. TJ..H. Native of America, among stones. Nestl. pot. 

 32. t. 2. f. 1. Buxb. cent. 1. t. 48. Flowers yellow, disposed 

 in dichotomous panicles. 



Pimpernel-like Cinquefoil. Fl. Ju. Aug. Clt. 1758. PL 1 ft. 



111 P. CICUTAROSFOLIA (Willd. spec. 2. p. 1098.) stem erect, 

 beset with adpressed pili ; leaves pinnate ; leaflets cuneiform, 

 deeply toothed, with a few hairs on both surfaces ; stipulas 

 nearly entire ; flowers in corymbose panicles ; petals obovate, 

 about equal in length to the calyx; receptacle glabrous. I/. H. 

 Native of Galatia. Nestl. pot. t. 2. f. 2. Flowers yellow, about 

 the size of those of P. argentea. Leaves resembling those of 

 Erbdium cicutarium. 



Cicutarium-leaved Cinquefoil. Fl. June, Aug. Clt. 1818. 

 PI. i to 1 foot. 



112 P. SUPI^NA (Lin. spec. 711.) stems decumbent, dielioto- 

 mous ; leaves pinnate ; leaflets oblong, deeply serrated ; stipulas 

 ovate, entire ; pedicels axillary, solitary ; petals obovate, length 

 of calyx. ^.H. Native of Europe and Siberia, also of Nortli 

 America, in the plains of the Saskatchawan. Jacq. fl. aust. 5. 

 t. 406. Gmel. itin. vol. 1. t. 27. f. 1. P. prostruta, Haenke. 

 Corolla small, yellow. 



Supine Cinquefoil. Fl. June, Aug. Clt. 1696. PI. prostr. 



113 P. EFFU'SA (Dougl. mss. Hook. fl. bor. amer. p. 187.) 

 plant clothed with hoary tomentum ; stems ascending, weak ; 

 leaves interruptedly pinnate ; leaflets oblong, deeply serrated ; 

 flowers in dichotomous panicles ; stipulas lanceolate, acumin- 

 ated, entire ; petals obcordate, equal in length to the sepals, 

 which are acuminated. I/ . H. Native of the north-west coast 

 of America, on the elevated grounds of the Assinaboyne, and the 

 higher parts of the Red river. Receptacle villous. Corolla 

 golden yellow. 



Effuse Cinquefoil. PI. ascending. 



114 P. PENNSYLVA'NICA (Lin. mant. 76.) stem erect, rather 

 pilose ; leaves interruptedly pinnate, clothed with hoary tomen- 

 tum ; larger leaflets oblong, truncate, deeply serrated, smaller 

 ones quite entire, about the size of the segments of the larger 

 ones ; stipulas lanceolate, usually entire, but sometimes with a 

 few teeth ; petals obcordate, a little longer than the calyx. 

 If.. H. Native of the south of Europe, North America, and 

 Siberia, plentiful. Jacq. hort. vind. 2. t. 189. P. hispida, Poir. 

 suppl. 4. p. 538. Willd. enum. 553. Panicle branched. 

 Flowers yellow. 



Var. j3, slrigtisa (Lehm. pot. p. 55.) leaflets somewhat pecti- 

 nately pinnatifid ; segments with revolute margins ; stipulas 

 jagged. I/. II. Common in North America and Siberia. P. 

 pectinata, Fisch. in litt. P. absinthifolia, Dougl. 



Pennsi/leanian Cinquefoil. Fl. June, Aug. Clt. 1725. PI. 

 1 to 2 feet. 



115 P. MISSOU'RICA (Horn, ex Lindl. bot. reg. 1412.) stem 

 erect ; leaves pinnate, with usually 3 pairs of leaflets, hoary and 

 silky above, and clothed with white down beneath ; leaflets ob- 

 long, pinnatifid, with the segments lanceolate-linear and acute ; 



