CARDUACEAE 1353 
20. S. notabilis Mackenzie. Stem 3-8 E ine o short white-pubese ent: 
lower leaf-blades ovate or co ina 4—8 em. long, 3-5 em. wide, sharply serrate, 
elosely hispidulous above, osely s shor t et pos the petiole 
about length of blade, the b strongly cordate: upper stem-leaves oblong- 
laneeolate or oblong-ovate, gal ent entire, strongly iu 1, often ab- 
ruptly contracted below the middle: inner involucral 2 much "the longer, 
li — Dr 
narrowly linear, acute [* 5. amplexicaulis Martens.??] — Dry woodlands,. 
Coastal Plain and adj. provinces, "Fia. to Tex., Ark., al Tenn.—Sum.-fall. 
21. S. juncea Ait. Stem 4-15 dm. tall, a: Ec leaf-blades ovate- 
lanceolate or obovate ieee te, 8-15 cm. lon wide, glabrous, sharply 
serrate, the upper gradually redu ced: panicle- o flower-bearing to much 
elow the middle: heads usually strongly secund, 4.5-6 mm. high: involueral 
braets linear- ob acutish, the midrib eo nspicuous: Belen 5-r ibbed, brownish, 
Jr short- “pubescent —Dry fields and open woodla fan. various provinces , Ga. 
** Mo.?? **Sask."? Que., and N. S.—Sum.—fall. 
22. S. Boottii Hook Stem 5 9—15 dm. tall, glabrous eel the inflorescence: 
2.5-3.5 c 
larger leaf-blades of an oval-obovate type, 5-10 e ong, . wide, 
serrate, thickish, firm: inflorescence- ‘branches widely “spreading, t the lon er ones 
flower- bearing towards the end only: heads abou gh: involueral bracts 
thin, linear-oblong, obtuse or acutish: ee 1. mm. a dilated a 
Dry woodlands, ee provinces, Fla. to Tex., Tenn., and Md.—Sum.-fal 
S. strigosa Small. Stem 6-12 dm. tall, an ee below a aique 
E es blades of an oblong-oval type, 10—18 lon vide, 
hispi ee or ii pun on the veins, m cane p Grice 
singly se rate: inflorescence-branches sae band spreading, the longer ones 
flo bee ing above Ts iddle: heads 4.5—5.5 high volueral braets 
thickish, opine obtuse or acutish: achen sí om Si done pute clavate, con- 
spicuously Ed .—Dry woodlands, Coastal Plain, Ga. to La., Ark., and SE 
Mo.—Sun 
24. S. yadkinensis (Porter) Small. Stem 5- xd EUR tall, p except i 
the o : lower leaf-blades ovate, 8—15 em. long, 6- 9 em vide, thiekish, 
singly s eae, minutely hispidulous, otherwi ise Sp ous; petio ole much short rter 
than the pe inflorescence ns ascending stiff branches, flower-bearing to the 
base: heads 7-9 mm. si volucral bracts oblong, obtus chene linear- 
clavate, ribbed. [S. argut bud tana A. Gray S. Vaseyi Heller] -Woods 
and low grounds, Coastal Plain and Piedmont, Fla. to Ala. and N 
fall. 
25. S. brachyphylla Chapm. Stem 5-13 dm. tall, elosely e pubescent, 
closely leafy peg eige larger lea. blades oblong- -oval or oval-obovate, 3—7 em. 
1.2-2.5 e 
long, . wide, crenate- Mus branches of inflorescence i VALE 
n nof ed ‘bearing o n lower ns he ads pane 2 J > e hi s 
voluere cylindric; bracts oed obtuse, firm: achen ee 
ong, 
dilated upward, 8-10-r ibbed. [S. M C. Mohr] Dry merece “Coastal 
Plain, Fla. to Miss. and S. Car.—Sum.-fall. 
. S. arguta Ait. Stem 6-12 EE tall, apis except in the inflorescence: 
lower leaf-blades ovate, 8-15 em. long, 5-8 e vide, thin, sharply more or less 
doubly serrate, deep-green above much lig hter. -green beneath, Je as 
long as the blades or longer: in nflorescence large and loo the branches flower- 
bearing at the ends: involuere 3-4.5 mm. high, 2-2.5 mm. thick; inner bracts 
linear-oblong: stigmas WARS iere uic in the disk: achene 
ains or nearly so; pappus 3—4 mm. long. 2 n dt various provinces, 
N. C. Alan «< Miss., nr ES yc and Me.—Sum 
