OF NORTH AMERICA, 
69 
656. Spirea (Ch.) daurica Raf. chamedrif. 
Var. Pallas t. 15. differs by leaves elliptic pu- 
bescent nearly entire, crenate above, tomentose 
beneath — Daurian Bits, of Sibiria, nearer to Sp. 
douglassi than the Sp. versifolia, but flowers 
not paniculate. 
657. Spirea (Ch.) xtlmifolia Scop. t. 22. 
W. P. Sm. chamedrif. Amman Lind. b. reg. 
1222 ! Smooth, branches slender flexuose an- 
gular, leaves petiolate ovate laciniate serrate 
acute, base entire subacute, flowers terminal 
corymbose crowded, pedicels filiform often with 
a subulate bract — Mts. of Europe and Sibiria, 
my specimen is an original one of Scopoli from 
Carniolia. and agrees perfectly with the figure 
of Lindley with mistaken name : totaly differ- 
ent from Sp. chamedrif. leaves and flowers lar- 
ger. 
658. Spirea (Ch.) betulifolta Pallas fl. t. 
16. not Pursh. Smooth, shrubby branches te- 
rete redish, leaves subsessiie ovate rounded la- 
ciniate serrate, yellow beneath, flowers termi- 
nal corymbose lax— Sibiria and New Sibiria ? 
flowers white. 
659. Spirea (Ch;] ostryfolia Raf. betuli- 
folia Pursh not Pallas. Suffruticose, quite 
smooth, shoots terete redish, leaves petiolate 
acute at both ends ovatoblong laciniate ser- 
rate except at the base, apex often obliqpal, 
glaucous beneath, corymb, pauciflore simple fo- 
liose crowded — Alleghany Mts. of Virginia 
found there 1825, intermediate between the 
last and the" next, semipedal, leaves 2 inches 
long quite thin, flowers white. Var. pumila, 4 
inches high flexuose few leaves the lowest large 
duplicate serrate, corymb glomerate, Wasioto 
Mts. 
