1916] 
GREENMAN—MONOGRAPH OF SENECIO 91 
Fernald Ф Wiegand 4188 (Gray Herb., photograph in Mo. Bot. 
Gard. Herb.), TYPE. 
35. S. pauciflorus Pursh, Fl. Am. Sept. 2:529. 1814, and ed. 
2, 1816; Schlecht. in Linnaea 10:90. 1836; DC. Prodr. 6:431. 
1837; Greenm. Monogr. Senecio, I. Teil, 24. 1901, and in Engl. 
Bot. Jahrb. 32:20. 1902; Piper, Contr. U. S. Nat. Herb. 11:597. 
1906; Piper & Beattie, Fl. Northwest Coast 387. 1915. 
S. aureus ?. discoideus Hook. Fl. Bor. Am. 1:333. 1834; Torr. 
& Gray, Fl. N. Am. 2:442. 1843, in part. 
S. aureus var. borealis Gray, Syn. Fl. N. Am. 1:391. 1884, 
and ed. 2, 1886, in part, i. e., as to S. pauciflorus Pursh in syn- 
onymy. 
S. Lemberti Greene, Pittonia 3:89. 1896. 
S. indecorus Greene, Fl. Franciscana 470. 1897. 
S. aureus pauciflorus Britt. in Britton & Brown, Ill. КІ. 
3 :480. 1898. 
S. discoideus Britt. in Britton & Brown, Ill. Fl. 3:479, fig. 
4042. 1898, and ed. 2, 3:544, fig. 4626. 1913. 
S. elongatus Howell, Fl. Northwest Am. 1:379. 1900, in part, 
not Pursh. 
S. aureus Britt. in Britton & Brown, Ill. Fl. 3:544. 1913, in 
part, i. e., as to S. pauciflorus Pursh in synonymy. 
An herbaceous perennial, glabrous or with a white-floccose 
tomentum in the axils of the leaves and in the inflorescence; 
stems one to several from a common base, erect or ascending, 
1 to 10 dm. high; lower leaves petiolate, ovate-rotund to ovate- 
oblong, 1 to 8 em. long, 1 to 4.5 cm. broad, crenate-dentate, 
glabrous on both surfaces, their petioles equalling or twice ex- 
ceeding the blade; stem-leaves sublyrate to pinnatisect, the 
uppermost sessile and much reduced; inflorescence a few to 
many-headed corymbose cyme; heads discoid, 10 to 12 mm. 
high; involuere eampanulate, calyculate; bracts of the in- 
voluere usually about 21, linear-laneeolate, acute or acutish, 
more or less purplish; flowers numerous; achenes glabrous. 
Distribution: usually in bogs and wet places, Labrador, 
eastern Quebec, northern Michigan, across the continent to the 
