CARDUACEAE 1359 
lanceolate, aeutish, the inner narrowly linear, with obtuse ereet tips; eu 
a ut = disk-flowers about t 7: achenes sparingly hispidulous, ribbed.— 
ocks, Ft. Mead, Fla.—Peculiar among our goldenrods of this and the ncn 
ou, in dn it holds its lower cauline leaves tous. ut the growing season 
. S. mirabilis Small. bd em 15-30 dm. tall, glabrous, ridged or rather 
sharply angled, simple or nearly so below the inflore escence: eauline leaves nu- 
merous; blades pap id ALS varying to elliptie-oblaneeolate or elliptic- 
lanceolate, 6-15 e ong, a ree sharply serrate, except often the acumi- 
nate tip, thin, Mi dolens on the veins and veinlets beneath, rather veiny, some- 
what narrow j se usually ample 
ads: 
bracts thin, the outer lanceolate, acuminate, the inner narrowly o with 
minute, Lure das inflexed or incurved tips: ray-flowers 5-7; disk-flowers 3-5, 
usually 2 or 3 fewer than the ray-flowers: achene s sparingly hi VR AMA sharply 
ribbed. lus hammocks, E coast of Fla., N of Cape Canaveral.—Sum.-fall. 
S. glaberrima Martens. Stem 5-15 dm. tall, e dd slender, very 
na middle leaf- blades era ieee 5—10 em. long, 6-12 mm. wide 
firm, rigid, thiekish, aeute or acuminate, sessile, narrowed and long-tapering at 
Or i | wer 
: he bran 
usually spreading or recurved, sometimes erect, glabrous: heads usually secun nd, 
6 mm. high: involucral bracts een, oblong, obtuse: achene silky. «Cg. 
missouriensis Nutt. 75er open places, prairies, and barrens, calcareous dis- 
tricts, various provinces N of Coastal Plain, Tex. to Minn. and Tenn.—Sum.- 
fall. 
58. S. dis ina Ret 6-25 dm ta, rid glabrous below in- 
6-12 e ong, dt M hore 
ADS tapering at the pons sharply ae as Eris throughout, or 
hairy on the 1 in pes large, the branches spreading or recurved, 
hairy: 2 ads . high, secund: involuere campanulate; bracts narrowly 
linear, M achene e sparsely silky, [S. gigantea Ait. ae thickets and 
ende Ens provi , Fla. to Tex., Ore and N. B.—Sum 
all.—One ‘of our most widely ea species of ae 
59. S. canadensis L. Stem 5-20 dm. tall, Jeet glabrous or pubescent below, 
strigillose n. and en ose in inflorescence, closely-leafy : larger leaf- bla des 
ine 
ate M . long, mm. 
firm, sharply pira sharply remotely shallowly serrate, glabrous or. pu- 
bescent, deep-green abo pe petioles 3-15 mm. a s thyrse large, the branches 
spreading or b du heads 3.5—4 mm. high, secund: involuere Il -cam- 
panulate; inner bracts narrowly lanceolate, iue thiekish: achene appressed- 
pubescent. "[S. e T a —Rocky anks, various provinces ae os Coastal 
Plain, S. C. to N. Dak., and Newf.—Sum.-fall—As here treated the 
T includes rer varying "widely in pubescence, but all ae on small 
eads. 
60. S. Leavenworthii T. & G. Stem 5-12 dm. tall, glabrate iden, the base, 
pubescent above in lines below the pem les, closely s short-pubescent in the in- 
florescence, closely leafy: larger leaf-blades san rowly silence. or lanceolate 
8) m i some 
g, ypically about 8 ide, triple-ribbed, b - 
times in be lateral veins little developed, joe uminate, sessile, sharply ser- 
rate or er e-serrate or nearly entire, short-hispidulous on the midvein above, 
otherwise pruden dull-green above: thyrse large, the branches widely spread- 
