230 
stamens much exserted. Y%.H. Native of shady places from 
New England to Carolina, in the Illinois region ; New Spain and 
Peru. Schkuhr; handb. t. 58. H. viscida, Pursh, fl. amer. 
sept. 1. p: 187. H. cortùsa, Michx. fil. bor. amen 1. p. 17]. 
There is a variety of this species having 2 of the petals longer 
than the rest. Flowers reddish. Perhaps H. reniformis and H. 
giatica, Rafin. med. fl. 1. p. 244. are not distinct from this. 
Var. P, glabriiscula (Schultes, syst. 6. p. 216.) leaves smooth- 
ish; panicle rather crowded. 
Var. y, folidsa (Moricand, mss.) scapes furnished with a few 
long distant leaves. Native of Peru. 
American Heuchera. FI. May, July. Clt. 1656. Pl. 14 foot. 
2 H. pivarica'ra (Fisch. in litt. ex D. C. prod. 4. p. 51.) 
scapes naked, glabrous; leaves glabrous, somewhat 5-lobed : 
lobes toothed: teeth mucronate ; branches of panicle divaricate ; 
teeth of calyx bluntish ; petals lanceolate, acute. . Na- 
tive of the north of Asia, in the islands of Kadiak and Sitka; 
also in Kamtschatka. 
Divaricate Heuchera. Pl. 14 foot. 
3 H. rupe’scens (Pursh, fl. amer. sept. 1. p. 187.) plant 
covered with powdery down; lower part of scape and under 
side of leaves glabrous ; leaves somewhat acutely lobed, toothed: 
teeth roundish, mucronate; branches of panicle short, crowded 
with flowers; calyx broad, campanulate; petals spatulate, 
longer than the calyx; stamens exserted. %. H. Native from 
Pennsylvania to Virginia, on the Blue Mountains. H. pulveru- 
lénta, Rafin. med. bot. 1. p. 213. Petals pale red, variegated 
with yellow. Flowers larger than in many other species. 
Pubescent Heuchera. Fl. May, July. Clt. 1812. Pl. 1 ft. 
4 H. ui'sprpa (Pursh, fl. amer. sept. 1. p. 188.) plant hispid 
and scabrous; scapes, petioles, and under side of leaves gla- 
brous; leaves acutely lobed, toothed, hispid from villi above: 
teeth short, rather retuse, mucronate; branches of panicle few- 
flowered ; calyx middle-sized, with acutish lobes ; petals spatu- 
late, length of calyx ; stamens exserted. 2%. H. Native of 
Virginia and Carolina, on high mountains. Flowers reddish. 
Hispid Heuchera. FI. May, June. Clt. 1826. Pl. 2 to3 ft. 
5 H. micra’ntua (Dougl. in bot. reg. 1302.) lower part of 
scape and petioles beset with long fulvous hairs; leaves round- 
ish-cordate, nearly naked, bluntly lobed, crenate : crenze mucro- 
nate; lower bracteas foliaceous, cut: upper ones setaceous ; 
panicle loose; petals linear, one-half shorter than the long ex- 
serted stamens. 2%. H. Native of the north-west coast of 
America, on the steep rocky banks of the Columbia, near the 
Grand Rapids. Flowers greenish-yellow. 
Small-flowered Heuchera. FI. June, July. Cit. 1827. 
2 feet. 
6 H. vitnosa (Michx. fl. bor. amer. 1. p. 172.) lower part of 
scape and petioles beset with deflexed soft hairs; leaves cordate, 
acutely lobed, mucronately serrated, a little cut, nearly naked 
above, but very villous on the nerves beneath ; panicle loose ; pe- 
duncles capillary, dichotomous ; bracteas linear, ciliated ; flowers 
small; petals very long, narrow-spatulate, and are, as well as 
the stamens, much exserted. Y%.H. Native of Upper Canada, 
and on the higher mountains of Virginia and Carolina. The 
leaves are very different from those of H. Americana, the 
flowers are smaller, and the petals regularly long and narrow, 
white. i 
Villous Heuchera. Fl. May, July. Clt.1812. Pl. 1 foot. 
7 H. cra‘sra (Willd. in Schultes, syst. 6. p. 216.) scape 
leafy; leaves cordate, acutely lobed, glabrous, unequally and 
acutely toothed ; lower stem ones or bracteas toothed ; panicle 
loose ; flowers small; calyx pubescent; petals linear; stamens 
exserted. 4%. H. Native of the north-west coast of America ; 
Nootka, in the vicinity of the Columbia river; Rocky Moun- 
tains, at Providence and Portage rivers. Hook. fl. bor. amer. 
BI: 
` gated, solitary, many flowered. 
SAXIFRAGACE. X. HEUCHERA. 
1. p. 236. t. 79. Tiarélla colòrans, Graham, in edinb. new, 
phil. journ. July, 1829. Petals white, Stipulas adnate, as in 
the genus Ròsa, but free at the top. 
Glabrous Heuchera. Fl. June, July. Clt. 1827. Pl. 1 foot. 
8 H. cauts’scens (Pursh, fl. amer. sept. 1. p. 188.) plant suf- 
fruticose at the base; lower part of scape and petioles pilose ; 
leaves glabrous above, but pilose at the nerves beneath, acutely 
lobed, ciliated, toothed: teeth acute, mucronate; calyx short, 
villous; petals linear, twice the length of the calyx ; stamens ex- 
serted. %. H. Native of Carolina, on the mountains, and of 
Kamtschatka. Petals white. 
Caulescent Heuchera. Fl. May, July. Clt. 1812. Pl. 1 ft. 
9 H. Barsaróssa (Presl, in relig. Henk. 2. p. 56.) plant 
suffruticose at the base; floriferous stems clothed with rufous 
villi; petioles very villous from rufous hairs ; leaves roundish- 
cordate, bluntly lobed, mucronately toothed, ciliated, puberu- 
lous; panicle loose, many flowered; petals linear-oblong, longer 
than the calyx; stamens exserted. %. H. Native of Nootka 
Sound. Plant small. 
Barbarossa Heuchera. PI. 4 foot. 
10 H. cyrřyorica (Dougl. mss. ex Hook. fl. bor. amer. L 
p. 236.) scapes naked, and are, as well as the petioles, hairy ; 
leaves cordate, deeply and roundly lobed, crenated, ciliated ; 
truncate at the base, smoothish above, but very pilose at the veins 
beneath: teeth piliferous; panicle compact, cylindrical, rather 
spicate ; flowers rather large, apetalous; stamens inclosed. %. 
H. Native of North America, on the declivities of low hills, 
and on the steep banks of streams on the west side of the Rocky 
Mountains. Like H. Richardsonii, but differs from it in the 
truncate base of the leaves, and in the spicate panicle, by having 
less oblique calyxes, very short stamens, and by the absence of 
etals, 
d Cylindrical-spiked Heuchera. Pl. 1 to 14 foot. 
11 H. Ricnarpsòxni (R. Br. in Franklin, Ist journ. ed. 1. 
append. p. 766. t. 29.) scapes and petioles rather pilose ; e 
cordate, with a deep recess, bluntly lobed, ciliated, crenate , 
rather pilose on both surfaces : teeth piliferous ; panicle loose, 
thyrsoid; flowers large; mouth of calyx oblique ; petals nc 
ovately cuneated, hardly longer than the calyx; stamens a little 
exserted. 2%.H. Native of North America, on the dry banks 
of rivers from lat. 54° to 64°. 
Richardson’s Heuchera, Fl. June, July. Clt. 1827. Pl. 1 
to 14 foot. 
12 H. Mewzze‘su (Hook. fl. 
bor. amer. 1. p. 257. t. 80.) 
plant hispid from pili; stems 
leafy; leaves cordate, acutely 
lobed, deeply serrated; flowers 
racemose, apetalous ; calyx cylin- 
drically funnel-shaped ; stamens 
exserted; ovarium free. 2. H. 
Native of the north-west coast 
of America; at Banks’s Isles, and 
from the coast of Columbia to 
Puget’s Sound. Tiarélla Men- 
ziésii? Pursh. fl. amer. sept. 1. 
p. 313. Racemes terminal, elon- 
FIG, 51. 
Stamens 3, exserted. Petals 5, 
linear, reflexed. (f. 51.) i 
Var. B; plant less hairy. Y%. H. Native along with the 
species, in shady woods. H. triándra, Doug. mss. ex Hook. l. c. 
Menzies’s Heuchera. Pl. 1 to 2 feet. 
13 H. sracrea’ra (Ser. in D. C. prod. 4, p. 52.) plant Py 
bescent; scapes racemose; leaves orbicularly cordate, meres 
cut: teeth mucronate ; flowers bracteate; petals narrow, hardly 
