COMPOSITE. 469 



branched rootstocks : herbage flocculent, or somewhat arachnoid 

 throughout, not glabrate in age: leaves in a radical tuft, suberect, 5—6 

 in. long, broadly oblauceolate, spatulately tajjering to a narrow scarcely 

 petiolate base, the margin coarsely, irregularly and retro rsely lacerate- 

 toothed in the broad upper portion, the tapering lower part entire: 

 heads 20 or more, in a somewhat paniculate terminal corymb, of the size 

 of those of A. aronicoides and radiate; involucral bracts 10 — 14, obtusish, 

 the involucre subtended by 2 or 3 somewhat remote more foliaceous 

 ones: ovaries glabrous. — Plumas Co., Mrs. Austin. 



22. S. Covillei. Tufted on branched rootstocks like the last, and 

 with similarly scapiform stems, but slender, almost glabrous from the 

 first, only the inflorescence a little flocculent: lowest leaves 3 — 5 in. 

 long, spatulate-linear or -lanceolate, i. e., linear ligulate and entire 

 toward the base, the main portion broader and coarsely serrate-toothed, 

 the apex acute or acuminate; the cauline few, reduced and lanceolate, 

 entire or toothed, amplexicaul: heads few and small, in a rather dense 

 cyme: involucre short-cylindric, the broad bracts black-tipped.— Near 

 Whitney Meadows in the southern Sierra, Coville d- Funslon (n. 1651), 

 also in a broader-leaved form in the White Mountains, Mono Co., 

 Shockley. 



23. S. astcphanus, Greene, Pittouia, i. 174 (1888). Lightly floccose- 

 pubescent when young, at length nearly glabrous: leaves ample, thin, 

 undivided, the radical nearly a foot long including the short petiole, 

 elliptic-oblong, acute at both ends, coarsely dentate, the teeth spreading, 

 triangvilar, callous-tipped, the sinuses rounded and the larger of them 

 denticulate: heads few, slender-peduncled, nearly an inch high and two- 

 thirds as thick: involucre calyculate at base, its proper scales lanceolate, 

 acuminate: rays none. — Mountains of San Luis Obispo Co., Lemrnon. 

 Species imperfectly known; perhaps of the leafy-stemmed group. 



24. S, cauus, Hook. Fl. i. 333 (1833)? Stems tufted, subligneous at 

 base and leafy, 8—16 in. high; herbage permanently white-tomentose: 

 leaves (in our plant) all ovate or oblong, entire, acutish, 1 in. long, on 

 petioles of greater length: heads 4—5 lines high, in a lax more or less 

 compound cyme: rays oblong-linear: achenes glabrous. — Near the sum- 

 mit of the Sierra, and down the eastern slope. Scarcely identical with 

 the plant figured by Hooker from the far north, but perhaps confluent 

 with it. 



25. S, weriieriaefolius. Gray, Proc. Am. Acad. xix. 54 (1883). White- 

 tomentose like the last, but low and cespitose: leaves all subradical, 

 spatulate-linear or oblong-linear, entire, the margins revolute: scape 



