320 ARBORETUM ET FRUTICETUM BRITANNICUM. 
Varieties, according to Seringe, in Dec. Prod. é oa 
ai P. f. 2 dahirica Ser. P. dahtrica Nestl. Pot. 31. t.1.; P. fruticosa 
B Lehm. Pot. 32.— Glabrous. Lobes of the 
leaves 3—5, pinnately cut. Sepals shorter and 
broader than the bracteoles. Dahuria. In- 
troduced in 1824; and producing its yellow 
flowers in July. Plants in the Hort. Soc. 
Garden, and in the Epsom Nursery. 
4 P. f. 3 tenutloba Ser.; P. fruticdsa 6 Nestl. Pot. 
30., Lehm. Pot. 32. var. y; P.floribanda Ph. 
Fl. Amer. Sept. 1. p. 355., Watson’s Dend. 
Brit. t. 70.; P. tenuifdlia Schlectend, Berl. 
Mag., according to Lehm. Pot. 32. (Our jig. 
547.) — Sepals and lobes of the leaves nar- 
row, and with a slight hoary silkiness. North 
America ; where it is a low-growing shrub, not 
above 18 in. high. It was also found by Pallas 
in Siberia. The handsomest variety of the 547. P.. tenuiloba. 
species. 
«1 2, P, Gia‘sra Lodd. The glabrous Potentilla. 
Identification. Lodd. Bot. Cab., t. 914.; Dec. Prod., 2. p. 584. ; Don’s Mill., 2. p. 561. 
Synonymes. P. fruticdsa Alba Busch, according to Lodd. Bot. Cab., t. 914. 
Engravings. Lodd. Bot. Cab., t. 914.5 and our Jig. 548, 
Spec. Char., §c. Frutescent. Branches 
pendulous, purple. Leaves pinnately 
cut into 5 entire lobes. Flowers ter- 
minal, white, of the size of those of 
the wood strawberry (Fragaria vésca). 
(Dec. Prod.) A beautiful little shrub. 
Siberia. Height 2ft. to 4ft. Intro- 
duced in 1818. Flowers white; June 
to August. Fruit brown ; ripe in Sep- 
tember. 
It differs from P. fruticdsa in being per- 
fectly smooth in all its parts, and in having pendulous branches and undulated 
leaves. It thrives best in a mixture of loam and peat, is of slow growth, 
and difficult to increase, except by seed. 
518. P. glabra. 
+ 3. P, Sareso‘viz Steph. Salesovius’s Potentilla. 
eee oor. Poe aceording, ee p. 552. ; Nesth. Pot., 31.3 
Engraving. Lehm. Pot., 35. t. 1.3 and our jig. 549. 
Spec. Char., 5c. Habit resembling that of Cémarum palistre. 
Stem suffruticose. Leaves pinnately cut, coriaceous. Lobes 
oblong, acutely serrate, pubescent above upon the veins, 
whitely tomentose beneath. Stipules lanceolate, very acute, 
entire, rather filmy at the edge. Flowers large, white, 
upon short peduncles, and grouped. Sepals lanceolate, 
very acute, broad, almost as long as the petals, which are 
obovate. Bracteoles very narrow, smaller than the sepals. 
Receptacle lanuginose. (Dee. Prod.) A low shrub. Siberia. 
Height 1 ft. to 2 ft. Introduced in 1823. Flowers white ; 
June and July. Fruit brown ; ripe in September. 
549, P. Salessvii. 
Cémarum palustre L. (Eng. Bot., t.172.), Potentilla Cémarum Scop., a well 
known British plant, found in boggy soils, with somewhat ligneous shoots, and 
showy flowers of a deep dingy purple, may be added to this order, and may 
prove useful in particular situations, on the margins of p.nds, 
