NAT. ORDER. 



Rosacea. 



POTENTILLA ATRO-SANGUINEA. BLOOD-COLORED CINaUEFOIL. 



Class XII. IcosANDRiA. Oidev V. Polygyma. 



Gen. Char. Co/y.r, ten-cleft. Petals, hve. /Sfeecfe, roundish, naked, 

 fastened to a small juiceless receptacle. 



Spe. Char. Leaves, interruptedly pinnate, serrate, silky underneath. 

 Stem, upright. Peduncles, one-flowered. 



This beautiful plant rises to the height of about three and a 

 half feet : the stem is erect, round, hairy, branched, and rather pilose ; 

 the leaves interruptedly pinnate, clothed with hoary toinentum ; large 

 leajlels oblong, truncate, deeply serrated, smaller ones quite entire, 

 about the size of the segments of the larger ones ; stipules lanceolate, 

 usually entire, but sometimes with a few teeth ; j)ctals obcordate, a 

 little longer than the calyx. This plant is a native of North Ame- 

 rica, the southern part of Europe, and is found in considerable quan- 

 tities in Siberia. It flowers from July till September. 



Perhaps no plant, bearing the open air in our climate, produces 

 flowers of a richer hue than the present, which is an hybrid, and very 

 much resembling the PotentUla nepalensis, but far exceeding it in both 

 beauty and size. It is perfectly hardy, braving the severest winters 

 of this country with impunity. 



Propagation and Ctdture. All the species of Potentilla are of 

 easy cultivation, and most of them quite handsome when in flower. 

 They will grow in any common garden soil, and are easily increased 

 by dividing the plants or by seed. The shrubby kinds are very 



Vol. ui.— 109. 



