fa i i ct la ie 
1901] Greenman, — Senecio in New England 5 
slightly tomentose along the margins of the sheathing petioles ; 
the uppermost sublyrate to more or less laciniately pinnatifid, 
sessile and somewhat clasping: inflorescence cymose-corymbose : 
achenes glabrous. — Oakes ex Rusby in Bull. Torr. Club, xx. 19. f 
139; Britton & Brown, Ill. Fl. iii. 480, f. 4046. S. aureus, var. Rob- 
binsti, Gray ex Rusby, |. c., S. aureus, var. lanceolatus, Oakes, Hovey’s 
Mag. vii. 183 ; Torr. and Gray, Fl. ii, 442 ; Gray, Manual, 240; not S. 
lanceolatus, Torr. & Gray, l. c., 440. S. aureus, var. Balsamitae, Watson 
and Coulter, l. c. in part. — MAINE, region about Moosehead Lake, Zer- 
naíd, no. 272; along St. John River, Fernald (coll. of 24 July, 1893); 
valley of Mattawamkeag River, Fernald, no. 2649; valley of Sandy 
River, Zerza/d (coll. of 9 July, 1896) ; Hartford, Parlin (coll. of July 
1892); Orono, Fernald (col. of 3o June, 1893); East Livermore, 
Miss Kate Furbish (coll. of June, 1888); Farmington, C. Z. 
Knowlton (coll. of 21 June, 1893); New HAMPSHIRE, Jackson, Æ. 
A. Purdie (coll. of 10 September, 1896); White Mountains, Crawford 
Notch, E. ¢ C. E. Faxon (coll. of 7 July, 1878), Greenman, no. 
1105: VERMONT, Willoughby Lake, Walter Deane (coll. of 26 July, 
1885); Middlebury, Brainerd (coll. of 23 and 25 June, 1883). 
++ ++ ++ Lower leaves obovate to oblong-oblanceolate or subspatulate and 
gradually narrowed at the base (rarely rotund or oblong). 
= Lower leaves obovate, or obovate-rotund. 
4. S.oBovarus, Muhl. Stems erect, 3 to 6 dm. high, slightly tomen- 
tose at the base and in the axils of the leaves, soon glabrate: lower 
leaves obovate, 1 to ro cm. long, two thirds as broad, usually cuneate 
at the base into a narrowly winged petiole, rarely rotund, glabrous 
upon either surface, margins crenate-dentate;  stem-leaves sessile, 
pianatifid or pinnatisect: inflorescence cymose-corymbose, not in- 
frequently subumbellate: achenes glabrous.—Muhl. ex Willd. Sp. 
Pl. iii, 1999; DC. Prodr. vi. 432; Ell. Sketch, ii, 329; Britton & 
Brown, Ill. Fl. iii. 478, f. 4041. S. aureus, var. obovatus, Torr. & 
Gray, Fl. ii. 442; Gray, Syn. Fl. i. part 2, 391. — VERMONT, Pownal, 
Eggleston, no. 264: | MassacHuskETTs, Boxford, Faxon (coll. of 
22 June, 1878): Connecticut, Southington, Bissell, no. 344. This 
species reaches its greatest development and variation in the South- 
ern States. 
b 
= = Lower leaves oblong-oblanceolate to subspatulate, gradually nar- 
rowed at the base. 
a. Achenes usually glabrous; lower leaves comparatively short-petiolate. 
5. S. BALSAMITAE, Muhl. Stems 1.5 to 3 dm. high, floccose-tomen- 
tose at the base, glabrous or nearly so above, often retaining loose 
tomentum in the leaf-axils: lower leaves commonly oblong-oblanceo- 
late, 1 to 4 cm. long, 0.5 to 1.5 cm. broad, gradually narrowed below 
