OF NORTH AMERICA. 75 



deeply 5fid colorate villose, petals 5 equal ve- 

 nose, stamens 20 inserted on a torus adnate to 

 the base of calix, pistils 5 equal sessile, capsu- 

 les 5 sessile tomentose monosper;n. Habit of 

 the paniculate Spireas. I have adopted this 

 Genus and name, on the suggestion of Lindley, 

 who proposed to unite to it the next, but the 

 habit is too different. Schizonotus appears to 

 mean Split back and I do not know how it ap- 

 plies unless the capsules open outside. 



673. SCHIZONOTUS DISCOLOR Raf. Spirea do 

 Pursh, Torrcy Dec. ariafolia Sin. Hook. Lind. 

 b. reg. 1365. Leaves petiolate ovatoblong sub- 

 lobate and laciniate serrate, white villose be- 

 neath, flowers terminal paniculate racemose, 

 pedicels and calix villose, petals oblong with 3 

 veins Origon region and Mts. A very pecu- 

 liar shrub, quite different from my Thecanisia 

 discolor 297, to which I refered by mistake the 

 Sp. discolor of Pursh, flowers white, leaves cal- 

 led elliptic by Smith, ovate by Pursh and Torrey 

 but they are realy ovate oblong. 



674. BASILIMA Raf. 1815. Sorbaria subg. 

 Ser. Schizonotus land. Cal. patent Sparted 

 smooth not colorate, base acute, petals 5, sta- 

 mens 15 to 20 inserted at the base of the calix, 

 pistils 4 to 5 sessile, capsules 4 to 5 unequal ses- 

 sile smooth monosperrn. Large shrubs with 

 the foliage of Roses and Sorbus, leaves alter- 

 nate stipulate oddly pinnate, folioles oppo- 

 site sessile, jlowers bracteolate paniculate or 

 corymbose This fine natural Genus is certain- 

 ly more different from Spirea than Lowea is 

 from Rosa ! it may be known at first sight by 

 its habit. 



675. BASILIMA SORBIFOLIA Raf. Sp. do L. 

 &c. Pallas fl. t. 24. Quite smooth, branches 



