Senerio. COMPOSITE. 339 



tmijlosculosus. Gray, Pacif. R. Rep. iv. 1 1 1. — Low grounds, common in California ; flrr>t coU. 

 by Douglas. Connects with S. lugens, var. exaltatus. 



b. Stem* low and simple, bearing a solitary or few comparatively large heads : involucre not at all 

 calyculate : leaves entire or merely dentate ; radical and lower ones spatulate to obovate. Arctic- 

 alpine species, loosely cuttuny-woolly, tardily glabrate. 



S. Hookeri, Toer. & Gray. Perhaps a less arctic variety of the next, bearing 3 to 5 

 closely corymbose heads, or a var. of i'. campestrls of the Old World, but ovaries and akenes 

 glabrous. — Fl. ii. 4-38. S. iidegrlf.Aius, Hook. Fl. i. 334, excl. s^Ti. S. campestris, Hook. f. 

 Arct. PI. 395, jiartly. Cineraria integrifolia, Richanls. 1. c — ^Vrctic and ^Mibarctic America 

 and high-northern Rocky Mountains, Richardson, &c. 



S. frigidus. Less, a span or two high, 3-5-leaved, bearing a solitary head, sometimes 

 2 or 3 : leaves spatulate, or the radical rounded-obovate and cauline bmceolate from a broad 

 or narrow sessile base, these sometimes dentate: involucre half-inch high, usuallv villous 

 with some purplish hairs, especially at the thickened base or summit of the peduncle: ravs 

 rather numerous, becoming half-inch long: ovaries and akenes glabrous or sparse! v hairv. 



— Less, in Linn. vi. 239 ; Hook. Fl. i. 334, t. 1 1 2 ; Torr. &, Gray, Fl. ii. 44.5. Cineraria frigida, 

 Richards. 1. c. : Hook. & Am. Bot. Beech. 126; Herder, I. c. 124. C. atropurpurea, Ledeb. 

 ex DC, &c. — Xewfoundland ? and Labrador, Arctic coast to Kotzebue .Sound, &c. (X. E. 

 Asia.) 



c. Stems low, only 2 to 6 inches high, scapiform : leaves clustered on the rootstock or caiidex, 

 entire or crenate; those of the scape few and very small, reduced to mere bracts: involucre 

 slightly calyculate. Rocky ^Mountain species, chiefly alpine or subalpine. 



1. Leaves linear, not thick : akenes papillose-hirtellous. 

 S. Tliurberi, Gray. Leaves densely tufted on the branches of the multicipital candex, 

 about inch long, barely a line wide toward the apex, tapering into a slender base, entire or 

 nearly so, tomentose-canescent, tardily glabrate : sca]ies glabrate, 4 to 6 inches high, bearing 

 2 to 5 heads; these 4 or 5 lines high: rays 7 to 10, 3 lines long. — Proc. Acad. Philad. 1863, 

 68. .?. caniis, var. pjgma:us. Gray, Bot. Mex. Bound. 103. — Mountain-sides, Sauta Rita del 

 Cobre, New ilexico, Tlmrber, Bigclcnr. 



2. Leaves thick and coriaceous, tapering into a petiole, crowded on the multicipital caudex, nearly 

 veinless, even the midrib obscure : akenes glabrous. 



S. ■wernerisefolius, Ge.iy. "WooUy and canescent, tardily glabrate: leaves quite entire, 

 erect or ascending, from spatulate-linear (2 or 3 inches long, including the petiole-like base, 

 by 2 or 3 lines wide) to elongated-oblong (inch long and half-inch wide) and short-petioled, 

 the margins sometimes revolute : scape a span high, rather stout, bearing 2 to S heads; these 

 4 or 5 lilies high; rays 10 or 12, oblong, 2 lines long, rarely few or wanting. — Proc. Am. 

 Acad. xix. .54. S. aureus, var. u-erneriaf alius, Gray, Proc. Acad. Philad. 1863, 68; Porter & 

 Coulter, Fl. Colorad. 81. — ilountains of Colorado, alpine, in coniferous woods near the 

 npper limit of trees, and in the alpine region, mostly on the upper waters of Clear Creek, 

 Hall & jSarhour, Grtinc-, Coulter, &c. 

 " S. petrEeus, Klatt. Glabrous or early glabrate : leaves from orbicnlar-obovate or oval 

 (a tjuarter to half an inch long) to cuueate-oblong (largest inch long), entire or 3-7-crenate- 

 toothed at the broad summit, abruptly petioled: scapes 1 to 3 inches high, bearing solitary 

 or several clustered heads ; these 4 or 5 lines high : rays 6 to 10, golden yellow, 3 lines lung. 



— Abhand. Xat. Gesellsch. HaUe, xv. (ISSl). .?. aureus, var. alpinus. Gray, Am. Jour. Sci. 

 11. ser. xxxiii. 11 ; Porter & Coulter, 1. c. .?. aureus, var. borealis, mainly. Gray, Bot. Calif, i. 

 412. — Alpine region of the Rocky ^fountains in Colorailo (first coU. by Parry), of Utah 

 ( Ward), and highest peaks of the .Sierra Xevada, California, Brewer, &.(i. Approaches the 

 preceding on one hand, and -S. aureus, var. borealis, on the other. 



3. Leaves round-cordate, crenate, purple-tinged beneath, slender-petioled, more or less clustered at 

 the base of the scape: akenes glabrous: plants very glabrous. 



S. renifolius, Porter. Two inches high from filiform creeping rootstocks : leaves thickish, 

 resembling those of Ranunculus Ci/mhalaria, rounded-subcordate or reniform, only about 

 half-inch wide, coarsely 5-7 -crenate : scape or peduncle little surpassing the leaves, bearing 

 a solitary comparatively large (half-inch long) head: rays about 8. oblong, 4 lines long.— 

 Porter & Coulter, Fl. Colorad. 8,3 — High alpine region on Whitehouse Jlountain, in Cen- 

 tral Colorado, at 13,000 feet, J. M. Coulter. 



