Potentilla.~\ xxvii. rosacea : rosea:. 
131 
serrate, peduncles axillary solitary single-flowered longer than 
the leaf, aehenes granulated scabrous. E. B. t. 862. 
Meadows, pastures, and way-sides. If . 6 — 9. — Stems taking 
root at the joints. Flowers yellow. 
9. P. Tormentilla Sibth. (Tormenffl) ; stem-leaves ternate 
those at the base of the peduncles sessile, leaflets lanceolate or 
obovate-cuneiform inciso-serrate, stem procumbent or ascend- 
ing dichotomous upwards, aehenes wrinkled. — «. leaves all 
sessile acute except those of the root, stem ascending. Tormen- 
tilla officinalis Sin. : E. B. t. 863. T. erecta L. — /3. lower stem- 
leaves stalked obtuse, stem prostrate sometimes rooting, flowers 
larger. Tormentilla reptans L. : E. B. t. 864. 
Moors and heathy places frequent. — 0. Hedge-banks, borders of 
fields, and waste places. 11 . 6 — 8. — To one or other of these vars. 
obviously belongs P. mixta of Mitten. Root large and woody, used 
medicinally, and by the Laplanders for staining leather of a red colour. 
Peduncles axillary and terminal, forming a dichotomous cyme or 
panicle, and never springing from a joint that throws out roots or 
from the axil of a petiolate leaf — This varies with 4 or 5 petals, 
when it becomes difficult to distinguish the oar. 0. from P. reptans, 
and some botanists are of opinion that the two plants are identical, 
their extremes being represented in E. Bot. P. reptans is often less 
creeping than in E. B. t. 862 ; and the present is sometimes not so 
panicled as in E. B. t. 864. Mr. Wilson finds them undistinguish- 
able, while Mr. Forster and Nestler think them quite distinct. 
**** Leaves quinate or ternate. Flowers white. 
10. P. *dlba L. (white C.) ; stems filiform procumbent, root- 
leaves quinate, upper ones ternate, leaflets oblong with converg- 
ing serratures silky beneath, aehenes glabrous. E. B. t. 1384. 
Wales (?) : Mr. Haviland (in ILuds.). If. 6, 7. — Hairs of the 
receptacle shorter than the aehenes. 
11. P. *lridentdta Soland. (three-toothed C .) ; leaves ternate, 
leaflets oblong-cuneiform 3-toothed at the extremity glabrous 
above hairy beneath, petals oval longer than the calyx, aehenes 
downy, stem ascending. E. B. t. 2389. 
On Werron Hill, Clova, G. Don ; but found by no one else. If. 
5, 6. — Hairs of the receptacle elongated in this and the next. A 
North American species. 
12. P. Fragaridstrum Ehrh. (Strawberry -leaved C.) ; leaves 
ternate, leaflets obovate deeply serrate silky on both sides 
(especially beneath), petals obcordate as long as the calyx, 
stems procumbent. Fragaria sterilis L. : E. B. 1. 1785. 
Woods, banks, and dry pastures, frequent. If. 3 — 5. — Calyx 
segments converging after flowering. Aehenes glabrous. 
G 6 
