580 SAXIFRAGACEiE. Heuchera. 



somewhat longer than the nearly equal calyx-segments, a little shorter than 

 the slightly exserted stamens ; styles filiform, at length exserted. — Piirsh ! 

 fl. 1. p. 188 ; DC. I. c. H. reniformis, Raf. med. flora, I. c. ? 



High mountains of Virginia and N. Carolina, Pursh ! May-June. — 

 Resembles the preceding species ; but the flowers are rather smaller. 

 Calyx-segments short, obtuse. Limb of the petals undulate towards the 

 apex, very broadly spatulate or somewhat rhomboid. — We are not aware 

 that this species has been collected by any botanist except Pursh, (one of 

 whose specimens is preserved in the herbarium of the late Prof. Barton, and 

 another very poor one in that of Mr. Lambert), and perhaps Rafinesque. 



8. H. Richardsonii (R. Brown) : scape naked, hairy and scabrous; leaves 

 roundish-cordate, with a deep sinus, somewhat 7-lobed, incised and crenate, 

 ciliate, nearly glabrous above ; the veins beneath and petioles hairy ; panicle 

 thyrsoid or racemiform, narrow; bracts lanceolate, laciniate-fimbriate ; limb 

 of the calyx unequal, oblique ; petals cuneate-obovate or sjiatulafe, ciliolate, 

 scarcely exceeding the calyx-segments, nearly tlie length of the stamens ; 

 styles filiform-subulate, included. — R. Br. ! in Richards, appx. Frankl. 

 journ. p. 53, t. 29 ,• DC. I. c. ; Torr. ! in ann. lye. New York, 2. p. 204 ; 

 Hook.! fl. Bor.-Am. \. p. 237. 



Rocky banks of rivers, from lat. 54° to 64°, Richardson ! and west to the 

 Rocky Mountains, Drummond ! Also on the prairies of the Missouri, Dr. 

 James ! — Lobes of the leaves short and obtuse ; the obtuse teeth mucronate 

 with a short bristle. Scape 12-18 inches high. Flowers greenish, larger 

 than in H. pubescens. Petals somewhat unequal. — In the beautiful figure 

 cited above, the styles are wrongly represented as united below, the bracts 

 are not well given, and the plant is represented as perfectly glabrous. 

 The specimens of Drummond and those of Dr. James are precisely tdike, 

 but have the scape and petioles quite hirsute. 



§ 3. Filaments and styles very short, subulate, included : calyx campanulate ; 

 the lobes erect arid someivhat unequal : petals minute and often fugacious, 

 or none : flowers usually large, glomerate or spicate. — Holochloa, 

 Nutt. mss. 



9. H. cylindrica (Dough): scape elongated, wholly naked; the lower 

 portion, with the petioles and veins of the leaves beneath, very villous 

 or hirsute with spreading fulvous hairs ; leaves roundish-cordate, glabrous 

 above, 5-7-lobed ; the lobes obtuse, crenate with mucronate teeth ; panicle 

 spicate, cylindrical ; bracts scarious, laciniate-fimbriate ; petals minute or 

 none ; stamens shorter than the rather unequal segments of the calyx ; 

 styles short. — Dougl. in Hook. fl. Bor.-Am. 1. p. 237 ; Litidl. hot. reg. t.- 

 1924. Holochloa elata & cylindrica, Nutt. ! mss. 



Oregon, on woody hills and the steep banks of streams, Douglas, Nut- 

 tall ! May-June. — Leaves small ; the crenatures mucronate with a very 

 short bristle ; the margin very minutely hispidly ciliate. Scape 2-3 feet 

 high, very glandular above. Flowers rather smaller than in H. Richard- 

 sonii, on very short pedicels, forming a compact slightly compound spike 

 3-4 inches long. Bracts lanceolate, the margin ciliate or laciniately fringed. 

 Calyx glandular and scabrous, cleft to the middle. Petals mere fihform 

 rudiments, or none. We find commonly one very small spatulate petal, 

 with glandular inargins, like those of H. Richardsonii but much smaller, and 

 one or two minute rudiments. The seeds are hispid, as in other species of 

 the genus. — Mr. Nultall proposes to separate this and the allied species as a 

 distinct genus, but their close relationship with both H. Richardsonii and the 

 succeeding section, forbids their separation except as a division or subgenus. 



