1918] 
GREENMAN— MONOGRAPH OF SENECIO 73 
An herbaceous perennial, more or less white-tomentose 
throughout; stems 2.5 to 4 dm. high; leaves mostly basal, ob- 
long-obovate to spatulate, including the petiole 3 to 6 cm. 
long, .5 to 2 em. broad, rounded or obtuse at the apex, entire 
to remotely and shallowly dentate, narrowed below the middle 
into the petiole, finely and densely matted white-tomentose 
beneath, loosely floccose-tomentose and somewhat glabrate 
above; stem-leaves sublyrate to merely dentate, the uppermost 
reduced to linear bracts; inflorescence a few to several-headed 
corymbose cyme; heads about 1 em. high, radiate; involucre 
campanulate, calyculate, tomentulose; bracts of the involucre 
18 to 21; ray-flowers 10 to 12, rays yellow; disk-flowers about 
40; achenes hirtellous. 
Distribution: mountains of Virginia. 
Specimens examined: 
Virginia: Blue Ridge, Buckley (Gray Herb.) ; Massanutton 
Mountains, Page Co., 13 May, 1900, G. S. Miller (U. S. Nat. 
Herb.) ; Hot Springs, 17 April, 1903, C. Е. Batchelder (Wal- 
ter Deane Herb., photograph in Field Mus. Herb. and in Mo. 
Bot. Gard. Herb.) ; Natural Bridge, 31 May, 1909, Bartram Ф 
Long (C. S. Williamson Herb.). 
118. 8, canus Hook. Fl. Bor. Am. 1: 333, pl. 116. 1834; DC. 
Prodr. 6:433. 1837; Torr. & Gray, Fl. N. Am. 2: 443. 1843, 
in part; Gray, Syn. Fl. N. Am. 12: 390. 1884, and ed. 2, 1886, 
in part; Macoun, Cat. Canadian Pl. 266. 1884, and ed. 2, 555. 
1886, in part; Coulter, Manual Rocky Mountain Region, 210. 
1885, in part; Rydb. Contr. U. S. Nat. Herb. 3 : 510. 1896, and 
Mem. N. Y. Bot. Gard. 1: 444. 1900, in part; Greenm. Monogr. 
Senecio, I. Teil, 24. 1901, and in Engl. Bot. Jahrb. 32: 20. 
1902; Nelson in Coulter & Nelson, Manual Cent. Rocky Moun- 
tains, 580. 1909, in part (excl. synonymy) ; Fl. Intermountain 
States, 175. 1912, in part. 
S. integrifolius Nutt. Gen. 2 : 165. 1818, in part. 
S. Purshianus Nutt. Trans. Am. Phil. бос. N. S. 7: 412. 
1841, in part, i. e. as to plant from ‘‘banks of the Missouri." 
S. Purshianus var. viridescens Lunell, Am. Mid. Nat. 1 : 207. 
10. 
