m 
KE# SVXVA 
all subpetiolate acute and sharply serrate, pam- 
icle racemose not foliose but with linear^bracts 
— Alleghany Mts. and Alabama, 2 or 3 feet 
high ramose, leaves biuncial very broad, flowers 
white. A very distinct sp. 
647. Spirea ciliata Raf. salicif. Elliot. Stem 
angular pubescent, leaves sessile imbricate con- 
similar cuneate acute, base entire, ciliate, sharp- 
ly serrate upwards, panicle racemose glomerate 
elongate, bracts linear— From the River Wa- 
bash to Carolina near streams chiefly, a very 
peculiar sp. quite ciliolate, middle nerve often 
also, bipedal, leaves small uncial, flowers white 
Var. 1. petiolata, leaves subpetiol. broader, 2 
multiflore panicle ramose. 
648. Spxrea obovata Raf. dec. 25. crena- 
ta Tor. Eat. Mg. hypericif. var Beck, chame- 
drif. Pursh. Quite smooth cespitose suffruti- 
cose creeping, branches flexuose angular red- 
ish, leaves similar obovate subsessile obtuse, 
base acute entire, upwards unequaly serrate, 
corymbs racemose terminal, bracteoles linear, 
petals obovate crenate undulate— Rocky sum- 
mits of Mattawan and Kiskanom Mts. of New 
York disc. 1817, descr. 1818 in my decads, 
mistaken or omitted by all our botanists, proba- 
bly a boreal plant. Shoots or branches assur- 
gent woody only 4 to 1 6 inches high, leaves un- 
cial concolor, panicle thyrsoidal ovate formed 
of small lateral corymbs, thus forming a pass- 
age to the subg. Chamedryon, flowers white 
blossoming in June. Having obtained speci- 
mens of the real Spir. crenata, ulmifolia and 
chamedrifolia I can vouch that this is quite dif- 
ferent and no Chamedryon. Var. Sibirica of 
Pallas nameless fig. t. 26 f. 2, merely differ by 
narrow leaves nearly entire glaucous beneath. 
