heuchera. SAXIFRAG ACE.E. 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 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 

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

 peaks of the Cascade and Rockv mountains. 



H. inicraiitha Dougl. Lindl. Bot. R<rg. 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 

 beaks 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. cuueata. 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. eylindriea 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, 



