Parr 4, 1908] ROSACEAE 309 
tose beneath, rather coriaceous; petioles tomentose, 1-3 em. long; leaflets obovate or 
cuneate, 1-3 cm. long, entire at the base, then deeply divided into narrow, oblong or linear 
divisions which are acute and with revolute margins ; hypanthium tomentose, in fruit seldom 
‘over 5 mm. in diameter; bractlets oblong, obtuse, nearly equaling the ovate, acute, mu- 
cronate, or obtuse sepals, about 3 mm. long; petals obovate-cuneate, emarginate, scarcely 
exceeding the calyx; stamens about 20; pistils numerous; styles filiform, short. 
TYPE LOCALITY : Europe. 
DISTRIBUTION : Nova Scotia to the Dakotas, Kansas, and District of Columbia. 
_ ILLUSTRATIONS: Dietr. Fl. Bor. 4: 6/. 273; Sturm, Deuts. Fl. 17: p/.7; Engl. Bot. £1. 89; 
Britt. & Brown, ll. Fl. f. 1914 ; Mem. Dep. Bot. Columbia Univ. 2: p/. 13. 
23. Potentilla intermedia L. Mant. 76. 1767. 
Potentilla digitatoflabellata A. Br. & Bouché, Ind. Sem. Hort. Berol. 1851: 14. 1851. 
Perennial; stem 4-7 dm. high, usually ascending, very leafy and much branched, 
green or tinged with brown or purple, finely pubescent and with sparse long hairs; stipules 
ovate, acute, mostly entire; leaves green and finely hirsute on both sides and somewhat 
tomentulose beneath ; basal ones on petioles 1-2 dm. long, digitate, with 5 obovate or cuneate 
leaflets 3-6 cm. long; stem-leaves quinate or ternate, with oblong or oblanceolate leaflets, 
the lower short-petioled, the upper sessile, the teeth ovate-oblong, rather obtuse; hypan- 
thium hirsute, in fruit 6-8 mm. in diameter; bractlets oblong or oblong-oval, obtuse or 
acute, nearly equaling the triangular-ovate acute sepals, 4 mm. long; flowers nearly 1 cm. 
in diameter; petals obcordate, about equaling the sepals; stamens about 20; pistils nu- 
merous; styles filiform, short. 
TYPE LOCALITY : Switzerland. 
DISTRIBUTION : Meuntain regions of Europe, Scandinavia, and the Baltic Provinces ; sparingly 
introduced into the northeastern United States, as far west as Michigan. 
ILLUSTRATIONS : Nestler, Monog. Potent. p/. 8; Lehm. Rev. Potent. A/. 41; Britt. & Brown, 
Ill. Fl. fi 1916 ; Mem. Dep. Bot. Columbia Univ. 2: p/. 12. 
24. Potentilla inclinata Vill. Hist. Pl. Dauph. 3: 567. 1789. 
Potentilla canescens Besser, Prim. Fl. Gal. 1: 330. 1809. 
Hypargyrium suberectum Fourr. Ann. Soc. Linn. Lyon II. 16: 371. 1868. 
Polentiila pilosa Macoun, Cat. Can. Pl. 1: 139. 1883. Not P. pilosa Vill. 1889. 
Perennial; stem rather simple, erect, or seldom decumbent at the base, leafy, more or 
less grayish-tomentulose and sparingly hirsute, furnished above with rather erect branches, 
4-6 dm. high; stipules lanceolate, entire; leaves, except the uppermost, quinate, silky- 
hirsute on both sides and grayish-tomentulose beneath ; leaflets oblanceolate, deeply toothed 
with oblong, rather acute teeth, 2-4 cm. long; hypanthium hirsute and tomentulose, in 
fruit 7-10 mm. broad; bractlets lanceolate, acute, equaling the ovate-lanceolate, acute or 
acuminate sepals, about 4 mm. long; petals broadly cuneate-obovate, slightly emarginate, 
equaling or slightly exceeding the calyx; stamens about 20; pistils numerous ; styles fili- 
form, short. 
TYPE LOCALITY : Vicinity of Sigaye, Dauphiné, France. . ; ; 
DISTRIBUTION » Europe and western Asia ; introduced and established at Kingston, Ontario, 
and Buffalo, New York. . : 
[LLUSTRATIONS : Sturm, Deuts. Fl. 91: p/.8; Vill. Hist. Pl. Dauph. 3: pL #8. 
VI. Rectae. Tallerect perennials. Leaves digitately 5-9-foliolate (usually 7-foliolate), 
strongly veined and strongly hairy. Flowers large, borne in more or less flat-topped cymes. 
Petals large, obcordate. Stamens about 30. Pistils numerous; styles filiform, but short. 
Achenes strongly reticulate. 
25. Potentilla recta L. Sp. Pl. 497. 1753. 
Potentilla obscura Willd. Sp. Pl. 2: 1100. 1800. . 
Potentilla corymbosa Moench, Meth. Suppl. 279. 1802. 
Potentilla hiria obscura Seringe, in DC. Prodr. 2: 579. 1825. 
Potentilia recta obscura Koch, Syn. Fl. Germ. & Helv. 213. 1838. 
Hypargyrium rectum Fourr. Ann, Soc. Linn. Lyon Il. 16: 372. 1868. 
Perennial; stem tall and strict, generally over 5 dm. high, sparingly hirsute, the long 
hairs often intermixed with a finer pubescence; leaves dark-green, very strongly veined, 
