CARDUACEAE 1439 
29. I decapetalus L. Perennial, with long rootstocks: stem slender, light- 
green, glabrous, simple to the inflorescence: leaves opposite to the inflorescence 
(branches of the latter mostly alternate); blades ovate, serrate, broadl 
cur th 1 petiole, very thin, uis as remotely se 
above, spa ly pubeseent benea heads very showy: braets of the ince 
linear or linear-lanceolate, longer than the disk, very loose, often curling pen, 
sub ro ray-flowers with ligules often ng: 
: 0 .7 to s 
wide; corollas yellow.—Rich woods, river- -banks, and Soden various prov- 
inces, Ga. to Tenn., Mich., and Que. 
30. H. microcephalus T. & ve Perennial, with rootstocks about 1 dm. long, 
the crown buds numerous: stem very s slender du ds n, glabrous, simple: 
leaves opposite, or sometimes the upper alter nate: blades very thin and delicate, 
light-green, er E -lanceolate, ee pu 2 beneath, cen short- 
hispid abov eads few, very small: ‘disk r arely exceeding 5 mm. in diameter 
braets of the ener ubt. subglabrous, a little longer e y disk.— 
Woods, thickets, and fence-rows, various provinces, Ga. to Ky. and Pa. 
31. H. occidentalis Riddell. Perennial, with rootstocks 2-3 dm. long, the 
terminal bud pro n a daughter plant during the season, and numerous fine- 
fibrou a oots: stem a risi d » rom a basal rosette which is not always Donde 
simple to the cabrous; leaves opposite, crowded toward the base 
of the E. blades oval in ‘ene either very narrowly or very broadly so, 
exceedingly "variable in à entire or serrulate, gh above, hispid 
coro 
yellow.— pA D ist wi ud ene soil, woods, bi and prairies, Med 
provinces, F "Tex Minn., Ohio, and N. e plants are large 
vigorous in black. rich ‘soil, len (Tn no less web on in dry, sandy soil. 
32. H. Dowellanus M. A. Curtis. Perennial, with rootstocks 1-3 dm. long 
and fibrous roots: stem 1-2.5 m. high, usually simple, rarely branched, ap- 
pressed-pubescent or ae rarer leaves more numerous and more approxi- 
ate towards the base of stem, opposite below, alternate above; blades ovate, 
acute, rather densely short-hispid beneath, da rk- -green, concolor, contracted at 
r 
ligules about 2 cm. long: disk about 1 cm. wide, its corollas yellow: achene 
pubescent at the apex and on the angles.—Open woods, rocky banks, and sandy 
bottoms, various provinces, Ga. to Ill, and D. C. 
33. H. mollis Lam. Perennial, with stout rootstocks about 15 em. long, the 
tomi bud. very large, and numerous erown-buds, the roots fine-fibrous: stems 
0.5—1 m. high, more or less tufted, - eabrous- hirsute, ced simple, if branched, 
the branches elosely ascending, even par ralle lt th ain stem, the pubescence 
1 
neles S : h : 
broadly linear-lanceolate, about as long as the disk, densely pubescent: 
flowers numerous, with dei 2-3 em. long: disk 2-3 cm. wide, its corollas 
yellow.—Prairizs, barrens, woo nd fields, various provinces, Ga. to T ex., 
Kans., Ia., and Mass ae ar cultivated. 
