[Vor. 3 
114 ANNALS OF THE MISSOURI BOTANICAL GARDEN 
Var. rotundus Britt. in Britton & Brown, Ill. Fl. 3:479. 
1898. Britton, Manual 1027. 1901, and ed. 2, 1905; Greenm. 
Monogr. Senecio, I. Teil, 24. 1901, in Engl. Bot. Jahrb. 32:20. 
1902, and in Gray, Manual 854. 1908; Blankenship in Mo. Bot. 
Gard. Ann. Rept. 18:179. 1907. 
S. rotundus Small, Fl. Southeastern U. S. 1304. 1903, and 
ed. 2, 1913. 
S. Lindheimeri Greenm. Monogr. Senecio, I. Teil, 24. 1901, 
and in Engl. Bot. Jahrb. 32:20. 1902. 
Habit, inflorescence, and technical characters of the head 
like the species; basal leaves usually long-petioled, the blade 
obovate to subrotund, cuneate to abruptly constricted into a 
subeordate base. 
Distribution: Ohio to eastern Kansas and south to Louisi- 
ana and Texas. 
Specimens examined : 
Ohio: Oak Point, Lorain Co., 11 Мау, 1895, Ricksecker 
(U. S. Nat. Herb.) ; Franklin Co., 7 May, 1892, Werner 133 
(Gray Herb.) ; central Ohio, Sullivant (Gray Herb.) ; vieinity 
of Miami, coll. of 1835, Dr. Frank (Mo. Bot. Gard. Herb.) ; 
Dayton, collector not indicated (Gray Herb.) ; near Cincinnati, 
Lloyd (Mo. Bot. Gard. Herb.). 
Missouri: flood plain of Fox Creek, near Allenton, St. Louis 
Co., 25 May, 1914, Drushel (Mo. Bot. Gard. Herb. and J. A. 
Drushel Herb.) ; wet places near Glencoe, 22 May, 1879, Eg- 
gert (Mo. Bot. Gard. Herb.); Meramee Highlands, 7 May, 
1898, Norton (Mo. Bot. Gard. Herb.) ; Pacifie, 24 May, 1915, 
Drushel (J. A. Drushel Herb.); Jefferson City, 6 May, 
1866, Krause (Mo. Bot. Gard. Herb.); Kimmswiek, 10 
May, 1885, Wislizenus 226 (Mo. Bot. Gard. Herb.), in part; 
Monteer, 11 May, 1905, Bush 2822 (U. S. Nat. Herb. and Mo. 
Bot. Gard. Herb.) ; Pleasant Grove, 20 May, 1900, Bush 340, 
710 (Mo. Bot. Gard. Herb. and U. S. Nat. Herb.) ; near Webb. 
City, 4 Мау, 1902, E. J. Palmer 314 (Mo. Bot. Gard. Herb.) ; 
Oronogo, 13 and 30 May, 1906, E. J. Palmer 859 (Mo. Bot. 
Gard. Herb.); La Russell, 22 May, 1908, E. J. Palmer 1342 
(Mo. Bot. Gard. Herb.) ; Prosperity, 11 May, 1909, E. J. Pal- 
