CARDUACEAE 1411 
S. lapsuum er Stem 9-22 dm. tall , glabrous, green or glaucescent: 
blades of the basal leaves es ifid or pi € parted, the segments coarsely 
toothed or pinnatifid, usu ery scabrous on both sides, the lower c often 
m. -stalked: heads few pi several: involuere hemisphere 8—10 high; 
aets 'orbieular-ovate to obovate or orbieular-obovate, hie. ziliolate, often 
un the tips spreading or recurved: ray-flowers mostly 6-8; ligules 8-1 ; 
long: vate, 8-0 mm. lo j 
o. 
B 
U-shaped sinus. Sandhills and oak-woods, Coastal Plain and Piedmont, near 
the Fall Line, Ga., and 8. C.—Sum 
S. orae Small. Stem 6-21 dm. tall, glabrous, glaueeseent: blades of the 
ap 3 N y 
yellow, 11-16 mm. long: achene obovate to iu e M e, 6-7 mm. long, 
the wing-tips toothed, forming a small U-shaped sinus at the top — Sa ndy 
woods, Coastal Plain, S. C. to N. C.—Sum 
k S. ovatifolium (T. & G.) Small. Stem 5-20 dm. tall, glabrous or eid 
0, m blades of the basal leaves ovate to elliptie-ovate, 10—30 e 
long o ely lobed or ri parted, the Sidi ba toothed, rou ded a or 
rM longer than midribs on the low pr of the : involuere 
em m or hemisph m campanu late, about I? high; eges ovate to 
ud a or elliptic-obovate, ciliolate, rounded 5) the Ds the tips erect 
or nearly so: ray- Todd several; ligules yellow, 1—1.5 em. long: achene sub- 
cd about 10 mm. broad; "the wi ing-tips urn bum footed. pes a 
usually y- -shaped sinus ae ey od Coastal Plain, Fla. to Ga.—Spr.-sum. 
S. venosum Small. Stem.8-12 dm. tall, zin or nearly so, glaucous 
blades of the basal leaves ate to elliptic, 9-30 cm. long, conspicuously a 
veined epl ud as or pinnately parted, the gen linear to linear- 
LÀ Ld e 
lades, gies d he base: heads few, showy, corymbose: involuere 
campanulate, about 1 e ee bracts ovate or broadly elliptic to orbicular- 
oval, or spa d rounded at the apex, ciliol E ray-flowers several; ligules 
yellow, 1-1.5 em. long: achene dendi dun or rhombic-orbicular about 10 mm. 
long, the wing-tips formi die : narrow U-shaped sinus, nearly entire.—Pinelands, 
Coastal Plain, Ga.—Spr.- 
9. S. rumicifolium Small Stem 4-8 = tall: blades of the basal leaves 
elliptie to elliptie- p = obovate, 9-15 cm. long, jos at the apex, repand- 
undulate, smooth, r ined above, rather cuneate at the base; petioles shorter 
than the blades tated E sheathing at the base: ee hemispheric, fully 
d; bracts various, the outer suborbicular, broader than long, the 
inner broadly elliptic to cuneate or spatulate, rounded a y-flower 
addas ligules yellow, 1.5-2 : g: achene cuneate to elliptic-obovate, 9—10 
— 
o 
is . 
Q 
narrowly winged, nearly a or slightly notched at the d —Dry, 
sterile soil, in the puedo ‘Valley near Knoxville, Tenn.—Sum.—fal 
10. S. terebinthinaceum Jacq. Stem 9-30 dm. tall: blades of the basal 
leaves ovate to elliptic, 9-60 em. long, coarsely dentate, with more or less pro- 
longed teeth, usually cordate E the base: heads showy, relatively few: in- 
voluere broadly eampanulate, 2-3 em. broad; braets various, the outer ovate, 
oval, or obovate, the inner e der much breader than the saa all obtuse 
and longer than broad: Ei -flowers 15-25; ligules yellow, 2-3 em. long: achene 
obovate-euneate, 9—11 . long, narrow y thick-winged, tr dh or io ded at 
the top.—Dry hills and; Dude. various provinces, Ga. to La., Ia., and Mich.— 
Sum.-fall. 
