678 SAXIFRAGACE^. Heuchera. 



or two small leaves ; the panicle a foot or more in length. Calyx short, pul- 

 verulent-glandular. Petals purplish or white, about 3-nerved, small. — 

 Jilum-root. 



2. H. caulcscens (Pursh) : scape about 2-leaved or often naked, nearly 

 glabrous ; the base and the elongated petioles a little villous with deflexed 

 rusty hairs ; leaves cordate, sharply 5-7-lobed, glabrous (except the veins 

 beneath) ; the lobes acute, acutely and unequally toothed, hispidly ciliate ; 

 panicle slender, loose ; the peduncles many-flowered ; bracts linear or sub- 

 ulate ; petals linear-spatulate, narrow, about the length of the exserted sta- 

 mens. — Pursh! Jl. 1. p. 188; DC. I.e. H. aceritblia, Raf. med. flora, 

 no. 49,2}- 241. 



/5. scape and petioles glabrous ; radical leaves slightly lobed ; cauline ones 

 2 from the same point ; branches of the peduncles racemosely elongated, 

 divaricate, many-flowered. 



On the high mountains of Carolina, Lyon, ex Pursh! Table Mountain, N. 

 Carolina, Curtis! Kentucky, Tennessee, &c. Rafinesque. p. Buncombe, N. 

 Carolina, Curtis! May-June. — Leaves more deeply and sharply lobed 

 than any other species of the United States (resembling some species of Ma- 

 ple) ; the lobes somewhat ovate, acute, divaricate ; the teeth mucronate. 

 Peduncles minutely glandular. Flowers about the size of H. Americana : 

 calyx short, a little hairy. Petals nearly thrice the length of the calyx-seg- 

 ments, white. — The specimens from Karatschatka (in herb. Lamh. !) which 

 Pursh wrongly refers to the present species, belong doubtless to H. ghibra, 

 Willd. The name of H. caulescens is not well chosen : it was probably 

 intended to apply in part to the Kamtschatka plant, as the scape in Pursh's 

 own American specimen is leafless. 



-"■"S. H. villosa (Michx.) : scape 1-3-leaved or nearly naked, the lower por- 

 tion and the stout petioles very villous with rusty deflexed hairs; radical 

 leaves (large) roundish-cordate, membranaceous, glabrous above, villous on 

 the veins beneath, somewhat 7-9-lobed ; the lobes short, acute, somewhat 

 incised, crenate with mucronate teeth, ciliate ; panicle loose ; peduncles fili- 

 form, many-flowered ; bracts laciniate or cleft at the apex, ciliate ; flowers 

 very small ; petals linear-spatulate and extremely narrow, unguiculate, 

 about the length of the exserted stamens. — Michx. ! ft. l.p. 172 ,- Pursh! fl. 1. 

 p. 188 ,• DC. ). c. ; HooJc.fl. Bor.-Am. 1. p. 236. H. squamosa (& fohosa!), 

 Raf. med. flora, I. c. H. parviflora, Bartl. ind. scm. Gcett. 1838. 



Mountains of Maryland ! Virginia ! and N. Carolina, to the Cliffs of Ken- 

 tucky River, Dr. Short! Also Canada, Mr. Goldie, ex Hook. July. — A 

 large and well-marked species; the radical leaves sometimes 8 inches in di- 

 ameter, on long oiout petioles ; the mucronate tips of the teeth attenuate into 

 a bristle. Scape stout, with 2-3 small leaves, or with squamaceous bracts 

 (stipules) in their stead, tipped with a minute foliaceous lamina. Peduncles 

 and calyx more or less hairy, but not viscid. Petals almost like the fila- 

 m.ents, white. 



4. H. glahra (Willd.) : scape 1-3-leaved, or rarely almost naked; leaves 

 roundish-cordate, acutely 5-7-lobed, incisely toothed, and, with the petioles 

 and scape, glabrous; the radical ones on long petioles; those of the stem 

 more deeply and sharply lobed, somewhat incised, on short petioles ; branches 

 of the panicle loose, divaricate ; lowermost bracts often leaf-hke, the upper 

 ones linear, mucronate, entire or incised; limb of the petals lanceolate-ovate, 

 about the length of the claws, nearly equalling the exserted stamens. — 

 Willd.! in Futm. c^ Schult. syst. 6. p. 216; DC. prodr. A. p. 52; Hook.! 

 fl. Bor.-Am. 1. p. 236, t. 79. H. divaricata, Fisch.! in DC. prodr. I. c. ; 

 Bovgard, veg. Sitcha, I. c. p. 139. Tiarella colorans, Graham, in Edinb. 

 phil. jour, ex Hook. 



