Plante Lindheimeriane. Al 
260. H. Maxinrant, Schrad. Prairies, margin of woods 
and deserted fields; common from Houston to the Colorado, 
flowering in October and November. Stems four to seven 
feet high, much branched. Well distinguished by the great 
and equable cinereous roughness of the stem, and of both 
surfaces of the lanceolate attenuate-acuminate leaves. It 
becomes, however, much less rough in cultivation. 
261. H. Maxiiniani, 6 asperrimus. A variety of the 
last, as we take it to be, with a simple stem, two to three and > 
and a half feet high, bearing solitary or few heads. Prairies 
between the Brazos and the Colorado, forming large patches. 
October. 
262. H. erosse-serratus, Martens: the same form, with 
the large leaves silvery-tomentose beneath, which was col- 
lected in Texas by Drummond, and which, as it best deserves 
the specific name, is assumed in Torr. & Gr. Fl. l. c. as the 
type of this variable species. Banks of rivulets and margin of 
woods. August — October. 
263. H. crosse-serratus, 8 Torr. & Gr. Fl. lic. A 
less canescent variety, with the stem, although somewhat 
glaucous, slightly scabrous throughout. Prairies, &c., with 
H. Maximiliani. ; 
264. Cosmipium rFitirouium, Torr. & Gr. Fl. Il. p. 350. 
Prairies west of the Brazos. May—June. This is really a 
perennial, and proves quite ornamental in cultivation. It 
extends as far north as the south-western borders of Missouri. 
265. Dysop1a raceroiwes, Torr. & Gr. FIII. p. 361. Wet 
prairies, and on sandstone hills of Mill-creek. August. This 
is also a perennial. ‘The dots of the leaves are orange-yellow. 
266. Pararoxia Hooxertana, Torr. & Gr. l. c. Sandy 
post-oak woods, near Industry. August. We have it in cul- 
tivation, from Lindheimer’s seeds. ‘The flowers are rose-color 
or deep flesh-color, and about two inches in diameter; the 
rays large and conspicuous, but often irregular, and some of 
them palmate. 
267. Actinetia Linearirouia, Torr. & Gr. Ll. c. De- 
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