or NORTH AMERICA. 63 



flowers, it deserves to be deemed a peculiar sp. 

 by narrow leaves not white beneath, and lax 

 rose flowers. 



637. Spirea feruginea Raf. stems angular 

 simple fuscate tomentose, leaves oblong cune- 

 ate sessile, broadly serrate, beneath rusty to- 

 mentose, panicle ample foliose at the base, 

 branches spicate, flowers subsessile, calix and 

 capsules rusty rugose scabrous — East Kentuc- 

 ky, Mts. Wasioto and Apalachian, shrub 2 or 3 

 feet high, woody at base, flowers purple : easily 

 known by the color, cuneate leaves, spikes and 

 capsules. Var. angustifolia, leaves narrow 

 cuneate, spikes slender. Pine barrens of New 

 Jersey. 



638. Spirea glomerata Raf tomentosa 

 Med. fl. tab. 88 stem siuiple terete sulcate fus- 

 cate tomentose, leaves petiolate elliptic or ova- 

 toblong jagged serrate, beneath fulvous tomen- 

 tose, panicle slender spicate, flowers subsessile 

 glomerate, calix fulvous tomentose — Alleghany 

 Mts. very small suflruticose pedal without bran- 

 ches, flowers small incarnate. Near to Sp, ro- 

 sea, but difterent leaves, sessile flowers quite 

 jagged or duplicate serrate, nankin color be- 

 neath. Var. 1 major, bipedal, 2 pallida, 



639. Spirea glomerata var, clnerea Raf. 

 difler. virgate, stem subterete not striate, ashy 

 tomentose, leaves also beneath, and calix like- 

 wise — Pine barrens of New Jersey, pedal, flow- 

 ers quite glomerate sessile redish. 



640. Spirea parvifolia Raf Stem branch- 

 ed angular purplish smootli, branches tomen- 

 tose, leaves sessile small elliptic base entire, 

 serrate above, beneath grey tomentose, panicle 

 spicate glomerate, flowers sessile, cro^^ ded, ca- 



