Senccio. COMPOSITE. 4 ] p, 



nuiiiorous corymbose lieads : caulino leaves lanceolate, elongated (4 to 8 inches long), 

 taj)ering to both ends and the lower into jietiolcs, laciniately (h-ntute or even pin- 

 natilid into narrow and acute salient teeth or lobes: bracts snl)tending tlio involucre 

 almost filiform, some of tliem nearly e<iualliiig tlio numerous and narrow acute i)ropcr 

 scales : rays 10 to 15, elongated. — Proc. Am. Acad. vii. 302. 



Mariposa Co., in the natural meadow at Clark's Ranch (named for the proprietor, Galen Clark, 

 E.sq., Commissioner of the Mnrijwsa Crove nnd Voscmite Valley), Bolnndcr. Heads from half to 

 two thinls of an ini'h long. Teeth or lolics of thn leaves liorizi>iitiil, sometimes half an inch long 

 and Huhiilnte-lnnceolMto, Homet.imcs very short. K(«n Co., It Hinirk. 



12. S. Mendocinensis, (Jray, 1. c. lieset or clothed witli some loose wool 

 when young, almost glabrous witli age : stem stout, 2 or 3 feet liigii, striate, naked 

 at summit, bearing several corymbose heads : leaves somewhat succulent, repand- 

 toothed or denticulate ; the radical and lower caulino varying from oval to lanceo- 

 late (3 to 5 inches long), mostly narrowed into margined petioles; the upper much 

 smaller, narrowly lanceolate and sessile, and above reduced to subulate bracts : 

 calyculate bracts of the involucre slender-subulate, rather copious, little shorter than 

 the numerous lanceolate very acuminate proper scales: rays 12 to If), oblong, rather 

 sliort : akenes prismatic. 



Near the coast of Mendocino and Humboldt Counties, Bolamh'r, Ifarford. Also collected 

 in Oregon by Kel/o/jif. Heads two thirds of an inch or moie in length, broad and very many- 

 flowered, with thickened turbinate base or sununit of peduncle, which is doubtless fleshy in the 

 manner of the allied S. integer rimus. .\kcnes prismatic and strongly striate-angleil, nearly 3 

 lines long. It is this species rather than .S'. luifr.ns that is to be compared with the East Asian 

 forms of aS'. pra/enais (var. polyccphnlun, Kegel ; S. Picrotii, Miipiel, fee), which have heads of 

 about the same size, but the involucre not calyculate. 



S. iNrKor.iilMMUs, Nnit., of the mountnins of IMnh, Coloniilc, nnd Wyoniing, jierhnpR also in 

 Nevada, is less tail, barely a foot or two high, with entire or linely glanihilar-deniiculatc leaves, 

 and smaller heads similarly llcshy-thickcned at base. The scales of the involucre are broader 

 and rather obtuse, and the calyculate bracts much fewer nnd mostly short : akenes more 

 stiiate. 



= = Heads smiillcr nnd mirron'er : invnbirre not over 3 or sometimes 4 lines long, 

 ohsicurehj and sparimjli/ cah/eidnte. 



13. S. lugens, liichards. Clothed with a thin and loosp lloccose wool wIhmi 

 young, eaily or later glabrate, somc^times appearing as if wholly glabrous: stem from 

 a foot or less to 2 or rarely 3 feet high, ])earing several or numerous closely corym- 

 bose heads : radical and lower leaves obovate-oblong and oblanceolate or rarely 

 ovate, glandular-denticulate, rarely more toothed (2 to 5 imihes long), tapering into 

 short margined petioles ; the upper cauline mostly rcdiuted to lanceolate or subu- 

 late bracts : scales of the involucre linear-lanceolate, barely acute or obtusish, their 

 tips almost always blackish : rays 6 to 12, linear-oblong, conspicuous (rarely want- 

 ing) : akenes angl.-d. — Hook. Fl. i. 332, t. 114. 



Var. exaltatUS. Taller or more robust : leaves repandly or some of the \ipper 

 oven laciniately toothed; the radical slender-petiolcd. — A', e.raltafus <t .V. rordatus, 

 Nutt. 



Low grounds, not rare in the Sierra Nevada, at the altitude of 8,000 to 10,000 feet ; eastward to 

 the Rocky Mountains, northward to Arctic Amenca. Var. ej-a/lnhis, at t^isco, Cahto, kc, and 

 in Oregon. Involucie 3 or at most 4 lines high, from cylindraceous to campanulnte. Rays 4 or 

 5 lines long. The typical S. hiijens is green or early glabrous, rather narrow-leaved, and the 

 upper or even almost all the cauline leaves much reduced in size, so that the stem, which seldom 

 exceeds a foot or two in height, is often naked for most of its lengtli. The var. ej-rjllnhts (as 

 understood from Nuttall's character rather than from some specimens named liy him) is a coarser 

 form, wholly of the I'acilic side, with leaves inclined to be lootlied or even hicininte. the rndi<'al 

 rather long-petioled : indeed, with the rays and involucre of this species along with the foliage of 

 the next. 



Var. Foi, rostra. Gray (S. hignis, vnr. cxftltatu.i, Eaton, in Hot. King Ex]).), of the Rocky Moun- 

 tains in Colorado and Utali, but not yet met with in California, is hoary with the white wool up^ 

 to the flowering state, and the stem conspicuously leafy iilmost to the top. 



