SAXIFRAGACEAE 593 
finely glandular-pubescent: petals 3.5-4 mm. long, with linear- bee or spatu- 
late blades.—Bluffs, eee and Interior Low Plateaus, Tenn. to Mo. and Ky.— 
Sum.—fall .— Corolla. whit 
3. H. villosa Michx. v ae is 5-12 wide, acutely 7—9 e n 
lobe relatively long and w; petioles villous or glabrate: flower ing 
branch 2—4 dm. tall: calyx lv] peu as ione -hairy: petals 2.2. o mm. long: 
pa anes at maturity, as well as during anthesis, rather lax and open. mo (Hamy. 
ROOT. ROCK-SANICLE.)—Cliffs and rocks, Blue Ridge, Tae Low Plateau 
irte Ga. to Ky. and Va.—Sum.-fail — Corolla pinkish. 
4. H. macrorhiza Small. Leaf-blades 8-22 em. wide, shallowly 5-9-lobed; 
reni lobe Moti br end triangular or depressed; petioles densely villous- 
sute: flowering branch 2-8 dm. tall: calyx and hypanthium short-hairy: 
eds 2.5-3 mm. long: Ba anicle at maturity, as well as during anthesis, rather 
compact.— (GIANT-ALUMROOT.)—Bluffs and river- panes Ao ac ian and In- 
terior Low Plateau provinces, Ala. to fs and Ky.—Sum.-fall.—Corolla white. 
5. H. americana L.  Leaf- bos orbieular-ovate or suborbieular, 5-11 cm 
wide, the lobes broad e cu bd oad bg flowering branch 3-9 dm. 
tall: 
sepals is longer than the free portion of the hypanthium: petals about 
1.5 mm. long, dd. ue blades slips ieee toothed.—The Pe een 
plants are com only copi iously hirsute.—(C E ON-ALUMROOT. GERA- 
NIUM.)—Rocky woods, various d ovinces, Ga. t AP Minn., Ont., ind a 
Sum.—Corolla yellowish or pinki 
H. calycosa Small. Resembling - americana, but more slender: leaf- 
blades ovate or orbicular-ovate, 5-10 em. wide, shallowly inr ciliate and 
pubescent near the margins: flowering ‘brane h 2-9 dm. tall: hypanthium tur- 
binate, barely 1 mm. long during anthesis: sepals m ovate, rounded at 
broad! 
s apex: petals oblong or spatulate Sid i much surpassed by the sepals, 
cute or apiculate, entire.— Woods, Appalachian provinces, Ga. and Ala.—Spr. 
zo olla pinkish. 
7. H. lancipetala Rydb. Leaf-blades ae or orbicular-reniform, 4-8 
em. wide, with shallow lobes and broad arply bi und teeth, glabrous 
except the margins and the cone does p ing branch short-hirsute: 
sepals about as long as the free-portion of the in un pis tals white or 
pink, about 3 mm. long, mueh exceeding the sepals, the blades oblanceolate 
to linear- c aeute, entire.— Woods, Interior Low Plateaus, Tenn. and 
Ky Spr.-s 
. H. donna ii T. & G. Leaf-blades suborbieular, varying to ovate or reni- 
form, mcns hispidulous above, and ciliate, the lobes broad and with few 
coarse Droad teeth: flo owering branch glabrous below, puberulent above, leafy: 
eding the ally rhombi 
to 
9. H. pubescens Pursh. Leaf-blades orbicular- -ovate, petal in age, the lobes 
often ovate, with usually sharply mucronate teeth: flow ring branch densely 
glandular-puberulent at $e aaa sepals together wi with the hypanthium 6-8 
m. long, the lower ones 0 : petals purplish, the larger ones 2.5-3 mm. long, 
the blades obovate, oa UE: free portion vd iem mature hypanthium 
long: tamens exserted.— ( MARBLED-ALUMROOT. ) —HRo woods, aan prov- 
inces N of Coastal Plain, N. C., and Tenn. to Mo. AE Pa —Spr.- 
38 
