HEUCHERA. SAXIFRAG ACE.E. 203 



H. glabra Willd. Roem. & Sehult. 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 glandu- 

 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 

 liispid in lines. On cliffs and rocks along streams, Alaska to the highest 

 peaks of the Cascade and Kockv mountains. 



H. mieraiitlia Dougl. Lindl. Bot. Rt-g. xv, t. 1302. Pilose with long 

 crinkly hairs below: stems nearly naked, 1-2 feel high, from the ends of 

 slender creeping rootstocks : leaves round-cordate to reniform, i-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 

 beaks erect. Common on rocky banks and cliffs, Briti Columbia to 

 California. 



* * Filaments and styles subulate, short: calyx campanulate, the 

 lobes equal: flowers small, in narrow panicles. 



H. cnneata. 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 coarsejy 

 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, 



