230 



SAXIFRAGACE^:. X. HEUCHERA. 



stamens much exserted. If.. 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. cortusa, Michx. fl. bor. amer. 1. p. 171. 

 There is a variety of this species having 2 of the petals longer 

 than the rest. Flowers reddish. Perhaps H. renif6rmis and H. 

 glauc.?, Rafin. med. fl. 1. p. 244. are not distinct from this. 



Far. j3, glabriuscula (Schultes, syst. 6. p. 216.) leaves smooth- 

 ish ; panicle rather crowded. 



Far. y,foliosa (Moricand, mss.) scapes furnished with a few 

 long distant leaves. Native of Peru. 



American Heuchera. FL May, July. Clt. 1656. PL \\ foot. 



2 H. DIVARICA'TA (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. l/.H. Na- 

 tive of the north of Asia, in the islands of Kadiak and Sitka ; 

 also in Kamtschatka. 



Divaricate Heuchera. PL \^ foot. 



3 H. PUBE'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. y.. H. Native from 

 Pennsylvania to Virginia, on the Blue Mountains. H. pulveru- 

 lenta, 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. HI'SPIDA (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. If.. H. Native of 

 Virginia and Carolina, on high mountains. F'lowers reddish. 



Hispid Heuchera. FL May, June. Clt. 1826. PL 2 to 3 ft. 



5 H. MICRA'NTHA (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 : crense mucro- 

 nate ; lower bracteas foliaceous, cut : upper ones setaceous ; 

 panicle loose ; petals linear, one-half shorter than the long ex- 

 serted stamens. %. 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. Fl. June, July. Clt. 1827. PL 

 2 feet. 



6 H. VILLOSA (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. 1.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. 



Villous Heuchera. FL May, July. Clt. 1812. PL 1 foot. 



7 H. GLA'BRA (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. Tf. . 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. 



1. p. 236. t. 79. Tiar611a colorans, Graham, in edinb. ne'w. 

 phil. journ. July, 1829. Petals white. Stipulas adnate, as in 

 the genus Rosa, but free at the top. 



Glabrous Heuchera. Fl. June, July. Clt. 1827. PI. 1 foot. 



8 H. CAULE'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. Tf. . H. Native of Carolina, on the mountains, and of 

 Kamtschatka. Petals white. 



Caulescent Heuchera. Fl. May, July. Clt. 1812. PL 1 ft. 



9 H. BARBAROSSA (Presl, in reliq. Haenk. 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. 7. H. Native of Nootka 

 Sound. Plant small. 



Barbarossa Heuchera. PL 5 foot. 



10 H. CYLI'NDKICA (Dougl. mss. ex Hook. fl. bor. amer. 1. 

 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. T , 

 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. Richardsbnii, 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 

 petals. 



Cylindrical-spiked Heuchera. PL 1 to 1 foot. 



11 H. RICHARDSONII (R. Br. in Franklin, 1st journ. ed. 1. 

 append, p. 766. t. 29.) scapes and petioles rather pilose ; leaves 

 cordate, with a deep recess, bluntly lobed, ciliated, crenated, 

 rather pilose on both surfaces : teeth piliferous ; panicle loose, 

 thyrsoid ; flowers large ; mouth of calyx oblique ; petals ob- 

 ovately cuneated, hardly longer than the calyx ; stamens a little 

 exserted. I/ . 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 1| foot. 



12 H. MENZIE'SII (Hook. fl. 

 bor. amer. 1. p. US7. 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. If. . H. 

 Native of the north-west coast 

 of America ; at Banks's Isles, and 

 from the coast of Columbia to 

 Puget's Sound. Tiarella Men- 

 ziesii ? Pursh. fl. amer. sept. 1. 

 p. 313. Racemes terminal, elon- 

 gated, solitary, many flowered. 

 Stamens 3, exserted. Petals 5, 

 linear, reflexed. (f. 51.) 



Far. ft ; plant less hairy. I/ . H. Native along with the 

 species, in shady woods. H. triandra, Doug. mss. ex Hook. 1. c. 

 Menzies's Heuchera. PL 1 to 2 feet. 



13 H. BRACTEA'TA (Ser. in D. C. prod. 4. p. 52.) plant pu- 

 bescent ; scapes racemose ; leaves orbicularly cordate, serrately 

 cut : teeth mucronate ; flowers bracteate ; petals narrow, hardly 



FIG. 51. 



