1915] 



GREENMAN MONOGRAPH OF SENECIO 611 



man, Fl. Southern U. S., ed. 3, 266. 1897 ; Small, Fl. South- 

 eastern U. S. 1305. 1903, and ed. 2, 1913. 



An herbaceous perennial, glabrous or with a white floccose- 

 tomentum at the base of the stem and in the axils of the 

 leaves ; stems 3 to 7 dm. high, striate ; leaves bi-tri-pinnately 

 dissected into linear segments; basal and lower stem-leaves 

 petiolate, 1 to 2.5 dm. long, 1.5 to 6 cm. wide, the upper ones 

 sessile; inflorescence terminating the stem in a corymbose 

 cyme ; heads 8 to 10 mm. high, radiate ; involucre campanulate, 

 sparingly calyculate, glabrous; bracts of the involucre 4 to 

 6 mm. long ; ray-flowers 8 to 12 ; disk-flowers numerous, usual- 

 ly 50 to 60; achenes hirtellous-puberulent. 



Distribution: mountains of North Carolina and South 

 Carolina. 



Specimens examined: 



North Carolina: slope of Caesar's Head, 3 Sept., 1876, 

 Engelmann (Mo. Bot. Gard. Herb.) ; without locality, coll. of 

 1888, Boynton (U. S. Nat. Herb.) ; dry, rocky places on White 

 Oak Mountains, Polk Co., alt. 850 m., 4 May, 1897, Biltmore 

 Herb. 1301 h (Gray Herb., Field Mus. Herb., and Mo. Bot. 

 Gard. Herb.) ; Skyuka Mountains, Polk Co., 25 May, 1899, 

 Churchill (Gray Herb.). 



South Carolina: Table Eock, coll. of 1842, Buckley (Gray 

 Herb, and Mo. Bot. Gard. Herb.) ; "Carolina," Fraser (Gray 

 Herb.), part of type; Caesar's Head, Aug., 1876, Canby (U. 

 S. Nat. Herb.). 



22. S. tampicanus DC. Prodr. 6 : 427. 1837 ; Hemsl. Biol. 

 Cent.-Am. Bot. 2 : 248. 1881, excl. plant of Wright. 



S. Ervendbergii Greenm. Monogr. Senecio, I. Teil, 23. 

 1901, and in Engl. Bot. Jahrb. 32 : 19. 1902 ; Field Col. Mus. 

 Bot. Ser. 2 : 275. 1907. 



Glabrous throughout; stem 4 dm. or more high, terete, 

 striate, leafy; leaves thin, pinnately divided into cuneate to 

 obovate, unequally dentate divisions ; lower leaves petiolate, 1 

 to 3 dm. long, the upper ones sessile and amplexicaul by a 

 large stipular-like base; inflorescence a terminal compound 

 corymbose many-headed cyme ; heads small, 5 to 7 mm. high, 



