[Vor. 4 
30 ANNALS OF THE MISSOURI BOTANICAL GARDEN 
Dougal 401 (Gray Herb., Phil. Acad. Nat. Sci. Herb., U. 8. 
Nat. Herb., and Univ. Ariz. Herb.) ; near Flagstaff, May-Oet., 
1900, Purpus (Mo. Bot. Gard. Herb. and U. S. Nat. Herb.). 
93. S. Breweri Davy, Erythea 3: 116. 1895; Greene, КІ. 
Franciscana, 471. 1897; Greenm. Monogr. Senecio, I. Teil, 24. 
1902, and in Engl. Bot. Jahrb. 32: 20. 1902. 
S. eurycephalus Gray, Syn. Fl. N. Am. 1?: 392. 1884, and 
ed. 2, 1886, in part; Jepson, Fl. West. Mid. Calif. 512. 1901, 
in part; Hall, Univ. Calif. Pub. Bot. 3: 233. 1907, in part, 
not Torr. & Gray. 
An herbaceous perennial, glabrous throughout; stems erect, 
4 to 8 dm. high, striate or furrowed; radical and lower stem- 
leaves petiolate, including the petiole 5 to 30 em. long, 1.5 to 9 
em. broad, lyrately pinnatifid with obovate-cuneate coarsely 
and unequally toothed to sublobate segments, frequently 
bearing intermediate smaller lobes; the terminal segment 
oblong-ovate, much larger than the lateral ones; upper stem- 
leaves sessile and more or less amplexicaul, pinnatisect 
with slender unequally laciniate-lobed to entire segments, 
often much attenuated; inflorescence a terminal loose corym- 
bose cyme; heads 12 to 15 mm. high, radiate; involucre cam- 
panulate, sparingly calyculate with short bracteoles; bracts 
of the involucre 15 to 17, lanceolate, 8 to 10 mm. long, 1.5 to 
3 mm. broad, thickish in texture along the median line but 
with scarious margins; ray-flowers 8 to 10, rays yellow, con- 
spicuous, 10 to 15 mm. long, 2.5 to 4 mm. broad; disk-flowers 
45 to 60; mature achenes strongly ribbed, glabrous, about 
5 mm. long. 
Distribution: central western California and southward. 
Specimens examined: 
California: Atascadero, Geol. Surv. Calif., coll. of 1860-62, 
Brewer 512 (Gray Herb. and U. S. Nat. Herb.), түре; Mt. 
Diablo, 30 April, 1868, Brewer 538 (Gray Herb. and U. S. Nat. 
Herb.); Lemmon's Raneh, Cholame, June, 1887, Lemmon 
4585 (Gray Herb.); near Paso Robles, 23 April, 1899, J. H. 
Barber (Gray Herb.); Paso Robles, April, 1907, Cobb (U. S. 
Nat. Herb.) ; back of San Mateo on the Half Moon Bay road, 
