748 



ARBORETUM AND FRUTICETUM. 



PART III. 



shorter and broader than the bracteoles. Spontaneous 

 in Dahuria, and introduced into Britain in 1824; and 

 producing its vellow flowers in Julv. 

 Jt P. f. 3 tenuUoba Ser. P. fruticbsa ^ Sestl. Pot., 30. ; 

 Lehm. Pot., 32. var. y; P. floribiinda Ph. Ft. Amer. 

 Sept. 1. p. 355., Hort. Brit., No. 13.")78., Watson's Dend. 

 Brit., t. 70. ; P. tenuitulia Schlectend. Berl. Mag., ac- 

 cording to Lefim. Pot., .32.; and out fig. 4fi9.— Sepals 

 and lobes of the leaves narrow, and with a slight 

 hoary silkiness. A native of North America, found 

 in bog meadows, and on the borders of lakes, in 

 Canada, and on the mountains in the states of New 

 York and New Jersey ; where it is a low-growing 

 shrub, not above 18 in. high. It was also found by Pal- 

 las in Siberia. 



j» 2. P. GLABRA Lodd. The glabrous Potentilla. 



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



Mill., 2. p. 561. 

 Synonyme. P. fruticosa &lba Busch, according to Lodd. Bot. Cab. 



t. 914. 

 Engravings. Lodd. Bot. Cab., t. 914. ; and our/»'. 470. 



S])ec. Char., S^c. Frutescent. Branches pendulous, purple. Leaves pinnately 

 cut into 5 entire lobes. Flowers terminal, white, of the size of those of the 

 wood strawberry (Fragaria vesca). {Dec. Prod., ii.p. 584.) A beautiful little 

 shrub, a native of Siberia ; dittering 

 from P. fruticosa in being perfectly 

 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. It 

 was sent by M. Busch of St. Peters- 

 burg, to Messrs. Loddiges, in 1822, 

 and deserves a place in every general 

 collection. 



-t* 3. P. Saleso'vu Steph. 



Identification. Steph., according to Willd. Enum., p. 552. ; NestL Pot., 31. ; Lehm. Pot, 35. t. 1. ; 



Dec. Prod., 2. p. .583. 

 Engraving. Lehm. Pot., 3.5. t. 1. 



Spec. Char., ^c. Habit resembling that of Comarum palustre. Stem suffru- 

 ticose. 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. {Dec. Prod., ii. 

 p. 583.) A native of Siberia, introduced in 1823, and growing to the 

 height of 1 ft. or 2 ft. ; flowering in June and July. 



Salesovius's Potentilla. 



Sect. IV. Ros^.M Dec. 

 Genus XI. 



7?0^SA Tourn. The Rose Tree. Lin. Syst. Icosandria Polygynia. 



Identification. Tourn. Inst., 1. p. 636. t. 408. ; Lin. Gen, 631. ; Lam. 111., t. 440. ; Lindl. Ros. Mon., 

 8vo, 1820 ; Pronville's Nomen. Rais , 1818, Monog. Ros., 1824 ; Don's Mill., 2. p. 564. 



Synonymcs. Rhodophora Neck. Elem. ; Rosier, Fr. ; Rosenstock, Ger. ; Roozebooin, Dutch ; Bosajo, 

 Ital. ; Rosai, Span. ; and Roseira, Portuguese. 



Derivation. From r/ios, red, Celtic; in reference to the colour of the flowers of most of the species. 



Description, c^-f. Shrubs, for the most part deciduous, with pinnate leaves, 

 and large, showy, beautiful, and fragrant flowers. They are natives of Eu- 

 rope, and of the temperate regions of Africa, Asia, and America, but not of 



