OF NORTH AMERICA, 71 



Puberulent or pulverulent, branches angular 

 purplish, leaves petiolate glaucous cuneate en- 

 tire or apex crenate dentate obtuse, base acute, 

 smooth above, trinerve and puberulent beneath, 

 corymbs terminal on branchlets pauciflore sub- 

 umbellate, stamens very short — Europe from 

 Spain to Hungary ; my specimen is from Hun- 

 gary, with branches ramose not virgate, leaves 

 small semiuncial, flowers white, corymbs 5-7 

 flore, pedicels puberulent sometimes with a su- 

 bulate bract. This Linnean sp. is not Ameri- 

 can, Hooker has it not, Smith has proved that 

 several sp. were blended, the Sibirian is my 

 next. Even Linneus in taking barrelier's plant 

 as type, mistook others for it and called the 

 leaves ovatoblong, he meant obovate oblong. 

 The name being equivocal and liable to objeC' 

 tions, might be changed to Sp, pulverulenta 

 Raf. 



663. Spirea (Ch.) denticulata Raf. cre- 

 nata Pallas, fl. 1. 19. Wild. Pers. &lc. Smooth, 

 branches yellowish, leaves sessile obovate or 

 cuneate denticulate acute upwards, beneath 

 glaucous, lower leaves petiolate ovate denticu- 

 late, corymbs lateral pauciflore — Sibiria and 

 probably New Sibiria, flowers white ; even Pal- 

 las speaks of some varieties, one with laciniate 

 trinerve leaves may be a distinct Sp, laciniatal 

 Raf. 



664. Spirea (Ch.) japonica Raf. crenata 

 Thunb. fl. Smooth, branches virgate, leaves pe- 

 tiolate lanceol. hardly serrate, flowers umbel- 

 late, calix campan. deeply 5fid. petals emargi- 

 nate — in Japan, called there Awaju, another 

 mistaken reference to Sp. crenata, quite dis- 

 tinct from all, nearer to the next by the um- 

 bels. 



