1356 CARDUACEAE 
iod the heads 2. ‘short-peduncled: involuere campanulate, 5-7 mm. high; 
oblon ray-flowers 8-10, the ligules oblong, bright-yellow.— 
Pinel al Coastal Plain, oC —Sum.—fall. 
S. gracillima a & G. Stem 4-10 dm. tall, slender; lower leaf-blades 
oblanceolate or spatulate, 2-8 em. long, 8-12 mm. wide, du ull-gr reen above, lighter 
beneath, shallowly ear serrate except near base; petioles equalling or 2-3 
times as long as the ee es: | T pare es numerous, much r educed; blades entire 
r rly so: 1 i i E E 2—5 
very long and slender spreading uas with the heads secund o upper 
third de heads 5-6 mm. high, few-flowered: inv o boc Ea Gone. 
| ln ray-flowers rm wanting, sometimes solitary: achene linear, short- 
pubescent, dark-colored.—Sandy soil, Coastal Plain, E and Ga.—Sum.-fall.— 
B ud ted. 
41. S. petiolata Mill. Stem 2.5—20 dm. tall, TA gc er leaf ins 
6-15 6—2.5 
narrowly linear-oblanceolate to lanceolate, c vide, 
entire or ales ly Tae serrate; petio oles one- fourth as us as the blade to 
as long: stem-leaves abruptly 1 nuch redue ed, very numerous, en ntire, sessile, 
appressed or spreading: heads in a strict spike -like thyrse or sometimes the 
lower branches short spreading and the heads unilateral, 6-7 hi in- 
voluere turbinate-campanulate; bracts linear, acute, thin, Es eines ray- 
mcs several; ligules elliptic, conspicuous: achene linear-obeonie, silky, 
colo [S. stric irgat d go E Chrysopsis 
and N. J.—(W. I.)— —fall.— 
Pocsibly B uis more than one eee as Hen ao 
42. S. pulchra Small. Stem 2.5-4 dm. tall, dub very slender: s leaf- 
blades spatulate or oblanceolate, 2-5 cm. long, 8-14 n wide, entire, obtuse, 
labrous, even the ae eciliate ; petioles AR ned abe TN to three 
times length of blade: stem-leaves abruptly much reduced, appressed, sessile, 
most] and 1—2.5 mm. i 
: e ^2 em. lon 
voluere campanulat or turbinate-campanulate; bracts obl ong, i acutish, strigil- 
lose: ray-flowers 5 or 6, the ligules ovate, bright-yellow, 4—5 mm. lon ne 
linear PDA appressed silky.—Moist sandy soil, Coastal Plain, E: N. aa 
43. S. caesia L. Stem 3-11 dm. tall, nup per. terete, with a blu 
gray glaucous pom which is often obse age: leaf-bla des oblanceolate 
ei oblong-o olate, or oblo ng-lanceolate ran dm. long, 0.5-3 c 
wide, glabrous, Samply s ine serrate, firm, lon ng-acuminate, ron dees 
at base; pes oles 1-2 mm. long: heads 4-6 mm. high: involuere 3.5—4 mm. high, 
1.5-2 mm. wide; bae obtuse: achene linear, 10-ribbed T usually 
dry but sometime es damp soil, various provinces, Fla. to Tex., Wis., Ont., and 
Sum —Sum.—fall. 
. S. latissimifolia Mill. Stem 5-13 dm. tall, slender, straight, terete or 
sometimes obscur ee ML glabrous below, sparingly pubes nt above, with a 
shght bluish- "gray glaucous bloom: leaf-bla de es broadly T te to obovate, 
—20 em. long, 1.5-5. 5. em. wide, thin, strongly dE oi sparingly hirsutu- 
lous, sharply and deeply se rrate, cuneate- -tapering at base; petioles 1-5 mm. 
long: ood a 5 mm. high: involucre 4-4.5 mm. high, 9. 5-3. 5 mm. wide; 
braets : achene oblong, enlarged upward.  [S. flaccidifolia Small 
S. asterifoli. Small Dry woodlands, Coastal Plain to Appalachian Plateau, 
Ga. to La.—Sum.—fall. 
45. S. flexicaulis L. Stem 3-10 dm. tall, slender, strongly angled, usually zig- 
zag, glabrous, not glaucous: leaf-blades broadly ovate, rather abruptly acumi- 
