146 ENGLISH BOTANY. 
SPECIES V—POTENTILLA TORMENTILLA. Schenk 
Pirates CCOCXXX. CCOCOXXXL 
Rootstock thickened. | Flowering-stems elongated, ascending, 
decumbent or procumbent, sometimes rooting at the nodes, branched 
towards the top. Radical leaves generally decayed at the time of 
flowering, ternate or digitate-quinate ; leaflets wedge-shaped or 
oblanceolate, pointed or somewhat obtuse at the apex, coarsely and 
acutely serrated in the apical half; stem-leaves mostly ternate, the 
uppermost ones sub-sessile. Stipules obovate, cleft, or the upper 
ones elliptical and nearly entire. Flowers on long peduncles in 
the forks of the stem or opposite the upper leaves, arranged in 
a very lax cyme, mostly tetramerous.. The 4 outer calyx-segments 
nearly as long as the inner ones but narrower. Petals much longer 
than the calyx, deltoid-obovate, notched. Receptacle hairy. 
Achenes glabrous, reticulated or finely tuberculate. 
Sus-Srecies I.—Potentilla sylvestris. Weck. 
Pirate CCCCXXxX.* 
Garcke, Fl: v. N. & Mit. Deutschl. ed. vi. p. 131. 
P. Tormentilla, Sibth. Koch, Syn. Fl. Germ. et Helv. ed. ii. p. 239. ries, Sum. Veg. 
Scand. p. 45. Gr. & Godr. Fl. de Fr. Vol. I. p. 530. 
P. Tormentilla, var. a, Bab. Man. Brit. Bot. ed. v. p. 95. Benth. Handbook Brit. Fl. 
p- 131. Hook. & Arn. Brit. Fl. ed. viii. p. 193. 
Tormentilla officinalis, Sm. Eng. Bot. No. 863. 
T. erecta, Linn. Sp. Pl. p. 716. 
Stems erect or ascending, not rooting at the nodes. Stem- 
leaves ternate, all sessile. Flowers in a terminal corymbose cyme. 
Achenes reticulated when dry. 
On heaths and in open woods and gravelly pastures. Very 
common throughout the kingdom. : 
England, Scotland, Ireland. Perennial. Summer and Autumn. 
Rootstock much thickened, terminating in a barren shoot, 
which, however, is merely in the state of a bud when the flowers 
appear. Stems numerous, lateral, decumbent at the base, fre- 
quently ascending or sub-erect at the apex, flexuous, repeatedly 
forked, especially towards the top. Radical leaves stalked, with 3 
broadly wedge-shaped divisions, of which the lateral ones are again 
cleft, and sometimes so deeply that the leaf becomes quinate; leaf- 
* Named “ P. eu-Tormentilla” on the plate. 
eS mr ee — 
