3-20 



ARBORETUM ET FRUTICETUM BRITANNICUM. 



t. 1. ; P. fruticosa 



p. f. tenuiloba. 



Varieties, according to Seringe, in Dec. Prod. 



jk P. f. 2 dahurica Ser. P. dahurica Nestl. Pot. 31 



^3 Lehm. Pot. 32. Glabrous. Lobes of the 



leaves 3 5, pinnatel}' cut. Sepals shorter and 



broader than the bracteoles. Dahuria. In- 

 troduced in ] 824' ; and producing its yellow 



flowers in July. Plants in the Hort. Soc. 



Garden, and in the Epsom Nursery. 

 " P. /. 3 tenuiloba Ser. ; P. fruticosa /3 Nestl. Pot. 



30., Lehvi. Pot. 32. var. 7 ; P.floribunda Ph. 



Fl. Amer. Sept. 1. p. 353., Watson^s Dend. 



Biit. t. 70. ; P. tenuifolia Scltlectend. Berl. 



Mag., according to Lehvi. Pot. 32. (C)ur^g. 



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 



al)ove 18 in. high. It was also found by Pallas 



in Siberia. The handsomest variety of the 



species. 



j 2. P. GLA^BRA Lodd. The glabrous Potentilla. 



Identification. Lodd. Bot. Cab., t. 914. ; Dec. Prod., 2. p. -584. ; Don's Mill., 2. p. 561. 

 Synonymes. P. fruticbsa alba Busc/i, according to Lodd. Bot. Cab., t. 914. 

 Engravings. Lodd. Bot. Cab., t. 914. ; and out Jig. 548. 



Spec. Char., Sfc. 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 vesca). 

 (Dec. Prod.') A beautiful little shrub. 

 Siberia. Height 2 ft. to 4 ft. Intro- 

 duced in 1818. Flowers white ; June 

 to August. Fruit brown ; ripe in Sep- 

 tember. ,^^ 



548. P. glkbra. 



It differs from P. fruticosa 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 nd peat, is of slow growth, 

 and difficult to increase, except by seed. tX^, 



3. P. SalesdVi/ Steph. 



Salesovius's Potentilla. 



NesU. Pot., 



31. 



Identification. Steph., according to Willd. Enum., p. 552. 



Lehm. Pot., 35. t. 1. ; Dec. Prod., 2. p. 583. 

 Engraving. Lehm. Pot., 35. t. 1. ; and ourj?^. 549. 



Spec. Char., Sfc. Habit resembling that of Comarum palustre. 

 Stem suff'ruticose. 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 lannginose. {Dec. Prod.) A low shrub. Siberia. 

 Height 1 ft. to 2 ft. Introduced in 1823. Flowers white; 

 June and July. Fruit brown ; ripe in September. 



p. Salesovii. 



Comarumjmtustre L. (Eng. Bot., t. 172.), Potentilla Comarum Scop., a well 

 known British plant, found in boggy soils, with somewhat hgneous shoots, and 

 showy flowers of a deep dingy purple, may be added to this order, and mcx 

 prove useful in particular situations, on the margins of ponds. 



^fc, 



