1915] 



GREENMAN MONOGRAm OF SENECIO 585 



Canby (U. S. Nat Herb.); Catching Inlet, 10 May, 1911, 

 Smith 3700 (Field Mus. Herb.) ; Charleston Bay, 6 May, 1911, 

 Smith 3668 (Field Mus. Herb.) ; North Slough, 1 March, 1911, 

 Smith 3487; Coos Co., 2 March, 1911, Smith 3494 (Field Mus. 

 Herb.) ; Portland, March, 1889, Drake & Dickson (Field Mus. 

 Herb.) ; without definite locality, coll. of 1868-69, Kellogg & 

 Harford 536 (U. S. Nat. Herb.).* 



California: Oakland, March, 1864, Bolander 2777 (Gray 

 Herb, and Mo. Bot. Gard. Herb.) and May, 1865, Bolander 434 

 (Gray Herb.) ; without definite locality, coll. of 1880, Norton 

 (Mo. Bot. Gard. Herb.) ; near Mendocino, May, 1898, Brown 

 758 (Mo. Bot. Gard. Herb.) ; Mendocino Co., June, 1898, 

 Brown 458 (Field Mus. Herb.) ; Stanford University, 2 March, 

 1902, Baker 311 (Gray Herb., Field Mus. Herb., and Mo. Bot. 

 Gard. Herb.); Russian River, near Trenton, 16 March, 1902, 

 Heller & Brown 5072 (Gray Herb., Field Mus. Herb., and Mo. 

 Bot. Gard. Herb.); Big River, Mendocino Co., July, 1903, 

 McMurphy 374 (U. S. Nat. Herb.) ; near Saratoga, Santa 

 Clara Co., 25 Feb., 1906, Pendleton 288 (U. S. Nat. Herb.). 



4. S. sylvaticus L. Sp. PL 2 : 868. 1753, and ed. 2, 1217. 

 1763; Sow. Eng. Bot. pi. 748. 1800; Willd. Sp. PI. 3:1985. 

 1800; Fl. Dan. pi. 869. 1782; DC. Prodr. 6 : 342. 1837; Gray, 

 Syn. Fl. N. Am. I 2 : 394. 1884 ; Greenm. Monogr. Senecio, I. 

 Teil, 23. 1901, in Engl. Bot. Jahrb. 32 : 19. 1902, and in Gray, 

 Manual, ed. 7, 853. 1907 ; Britton, Manual, ed. 2, 1029. 1905 ; 

 Britton & Brown, 111. Fl., ed. 2, 3 : 539. 1913. 



Obaejaca sylvatica Cass. Diet. Sci. Nat. 35 : 271. 1825. 



Stem erect, simple or branched, 1 to 4 dm. or more high, 

 usually somewhat pubescent; leaves more or less pinnatifid 

 with unequal lobes, 2 to 15 cm. long, 1 to 8 cm. broad; the 

 lower leaves petioled, the upper sessile, clasping and auricu- 

 late-sagittate ; inflorescence naked or nearly so; heads cylin- 

 drical, sparingly calyculate, radiate ; ligules barely surpassing 

 the involucre, not infrequently much reduced; achenes can- 

 escent-pubescent. 



Distribution: Newfoundland to Maine, Ohio, and on Pacific 

 coast. 



