HEUCHERA,. SAXIFRAGACEA, 203 © 
H. glabra Willd. Roem. & Schult. Syst. vi, 216 Glabrous: stems 
1-3-leaved, 12-20 inches high, clustered at the ends of a much branched 
caudex: leaves roundish-cordate, acurately and irregularly lobed and 
doubly serrate, sparingly ciliate, 2-4 inches broad; on slender petioles 6-10 
inches long; flowers numerous in an open cymulose panicle; calyx glandnu- 
lar-pubescent, 2 lines long, cleft to the middle, the oblong obtuse lobes 
about as long as the tube; petals white, little more than a.line long, about 
equalling the stamens with ovate-lanceolate blade and long slender claw, 
recurved ; styles at. length much exserted: seeds oblong or oval, minutely 
hispid in lines. On cliffs and rocks along streams, Alaska to the highest 
peaks of the Cascade and Rocky mountains. 
H. micrantha Dougl. Lindl. Bot. Reg. xv, t. 1302. Pilose with long 
crinkly hairs below: stems nearly naked, 1-2 feet high, from the ends of 
slender creeping rootstocks: leaves round-cordate to reniform, 1-3 inches 
broad, slightly and obtusely lobed, mucronulately crenate, ciliate, on 
slender pedicels 2-8 inches long; panicle diffuse, many-flowered ; flowers 
small, on slender pedicels, in small dichotomous cymules; calyx turbi- 
nate, the rounded lobes about equalling the tube; limb of the petals 
linear-lanceolate.. as long as the claw, soon curled or twisted: styles slen- 
der, long exserted : capsule ovate-lanceolate, at length exserted, the slender 
peaks erect. Common on rocky banks and cliffs, Brit. Columbia to 
California. 
_* * Filaments and styles subulate, short: calyx campanulate, the 
lobes equal: flowers small, in narrow panicles. 
H. cuneata. Smooth or the leaves and inflorescence minutely pubes- 
cent: stems slender, 6-18 inches long, leafless but with a few ovate ciliate 
sessile bracts below: leaves elliptical to ov te or oblong, more or less 
cuneate at base, 6-12 lines long, obscurely 3-5-lobed, coarsely serrate and 
ciliate: flowers rather numerous, on short pedicels; calyx purplish, pubes- 
cent, 2 lines long, cleft to the middle, with oblong acutish lobes; petals 
minute, scarcely equalling the calyx-lobes; stamens and styles not exceed- 
ing the calyx: capsule ovoid scarcely exserted. On dry cliffs, Harney 
Valley eastern Oregon. 
H. pilosissima F. & M. Ind. Sem. Hort. Petrop. v, 56. Villous or 
hirsute with spreading viscid hairs: stems 6-18 inches high, rather stout, 
leafless or with a few small leaves: leaves round-cordate, obtusely lobed 
and crenate. 1-3 inches in diameter: flowers in a close and clustered or 
sometimes loose panicle, usually as long as their pedicels: calyx somewhat 
globular; rounded or obtuse at base and the broad short lobes more or less 
incurving, densely hairy; stamens about equalling the calyx; short styles 
and narrow spatulate petals but little exserted. On dry cliffs in the Coast 
Mountains, from the border of Oregon southward. 
H. parvifolia Nutt. T. & G. Fl. i, 581. Scabrous-pubescent: stems 
leafless, 10-20 inches high: leaves forming a small radical cluster, round- 
cordate, crenately 5-7-lobed with short and rounded lobes, rather coarsely 
dentate, ciliate: panicle racemose; flowers very small; calyx campanu- 
late, the limb spreading, dilated; petals minute; stems shorter than the 
lobes of the calyx; styles very short, conical: capsule ovate, the beaks 
exserted: seeds minutely hispid. From the Blue Mountains of Oregon to 
the Rocky Mountains. 
* * * Filaments and styles very short; subulate; calyx campanu- 
late, the lobes erect and somewhat unequal: petals minute or want- 
ing: flowers often large, glomerate or spicate. 
H. cylindrica Dougl. Hook. Fl.i, 236. Stems 1-3 feet high, leafless 
the lower portion with the petioles and veins beneath very villous or hir- 
sute with spreading fulvous hairs: leaves ovate-cordate, glabrous above, 
