112 
26, EOSACE^. 
7. P. erec'ta (Hampe) ; st. procumbent or ascending, 1. 
ternate sessile or shortly stalked, lower 1. quinate on long stalks, 
Its. lanceolate or obovate-cuneate incise-serrate, pet. obcordate, 
carjjels longitudinally ivrinkled. — P. silvestris (Neck.). P. 
Tormentilla (Nestl.) Tormentilla erecta (L.) E. B. 863. St. 34. 
12. — Rootstock large, woody. L. all nearly sessile, except the 
lowest, which are often ternate ; Its. acute, rather hairy. Stip. 
deeply cut. Fl. small, yellow, usually with 8 sep. and 4 pet. — 
P. mixta (Nolte) ' ; 1. stalked, Its. obovate-oblong acutely 
serrate, stip. entire. A hybrid between Sp. 6 and 7. — /3. 
P. 'procumhens (Sibth.) ; leaflets obovate-cuneate deeply cut, 
1. 5-nate or 3-nate stalked, stip. entire or trifid. Fl. usually 
larger. Sy. E. B. 431. — In dry places. /3. Woods and hedge- 
banks. P'.VI.-Viri. E.S.I, 
ttt Leaves ternate. 
*8. P. norvegica (L.) ; st. erect. Its. obovate coarsely toothed, 
pet. falling short of cal. obovate, carp, glabrous longitudinally 
wrinkled.—^. B. iii. Suppl. 435 A.— St. 6—12 in. Fl. crowded 
in term cymes. Naturalized in Yorks. and elsewhere. A. or 
P. VI.— VIII. E. 
** Hairs on the receptacle long, carpels hairy at the scar or 
all over. 
9. P. fruticosa (L.) ; shrubby, I. pinnate, leaflets mostly 5 
oblong acute entire hairy with re volute margins. — E. B. 88.— 
St. 3 — 4 feet high. Fl. large, yellow, terminal. — Teesdale. 
Wastdale. Galway. Clare. Sh. VI. VII. E.I. 
10. P. ster'ilis (Garcke) ; st. procumbent, I. ternate greyish 
green, leaflets roundish obovate serrate silky on both sides, pet. 
narrowly obcordate not contiguous, carp, glabrous except at 
the scar smooth or wrinkled transversely. — P. Fragarias trum 
(Ehrh.) E. B. 1785. — Hairs on the upperside of 1. bulbous- 
based. Fl. small, white. — AYoods, banks. P. IV. V. Barren 
Strawberry. E. S. I. 
9. Com'arum Linn. Marsh Cinque-foil. 
1. C. palus'tre (L.).— ^. B. 172. Potentilla (Scop.)— St. 
ascending, 1 foot high, reddish. L. pinnate. Leaflets 5 — 7, 
elliptic oblong, acute, sharply serrate. Fl. several, dark purple ; 
cal. purple within ; pet. small. . 'iffering from Potentilla by its 
enlarged spongy receptacle. — Marshes and peaty bogs. P. VII. 
E. S. I. 
1 This has been regarded as a hybrid between P. reptans and procumbens, 
taking the latter as a species. Two other hybrids have been recorded — 
P. subencta (Zimm.) = P. procumhcns x 1'. silvrstris, and P. italica (Lehm.) = 
P. reptans X silvestris. See J. nf B. 18S8, p. 78, and 1893, p. 325.— H. & J. G. 
