180 
7, CARMINATIA Mocino. 
An annual, with opposite or partly alternate broad and long-petioled 
thin leaves, racemiform-paniculate heads of whitish perfect flowers, 
discoid heads, naked receptacle, cylindraceous involucre of lanceolate- 
linear striate thin imbrieated bracts, slender 5-angled achenes, and 
pappus of 10 to 18 bristles which are plumose with long arachnoid hairs 
and deciduous together. 
1. C. tenuiflora DC. Sparsely pubescent or hirsute: stems 3to9 dm. high, termi- 
nating in a leafless virgate panicle: leaves broadly deltoid-ovate, as wide as long, 
repand-dentate, veiny: heads 12 mm. long: soft pappus bright white.—Limpia 
Canon. Some specimens collected by Nealley are not more than 1.5 dm. high, with 
leaves proportionally reduced in size. 
8. KUHNIA L. 
Perennial resinous-dotted herbs, with mostly alternate leaves, pan- 
iculate corymbose heads of perfect whitish or at length purple flowers, 
discoid 10 to 25-flowered heads, few thin striate narrow loosely imbri- 
cated involucral bracts, slender 5-toothed corolla, cylindrical 10-striate 
achenes, and pappus a single row of very plumose white bristles. 
1. K. eupatorioides L. Stem wholly herbaceous, 6 to 9 dm. high: leaves from 
oblong- (or ovate-) lanceolate to linear, irregularly few-toothed or upper ones en- 
tire, the lower ones narrowed at base and sometimes short-petioled: pubescence 
minute or soft and cinereous, or hardly any: heads more or less cymose-clustered.— 
An exceedingly variable and widely distributed species. Var, CORYMBULOSA Torr. 
& Gray is stouter, somewhat cinereous-pubescent or tomentulose, with rather rigid 
and sessile coarsely veiny oblong to lanceolate leaves, and rather crowded heads,— 
Extending from the western plains southward into Texas. 
2, K. rosmarinifolia Vent. Perhaps more woody at base, 3 to 6 dm. high: leaves 
all entire, linear or linear-lanceolate, mostly with revolute margins, and the upper 
almost filiform, somewhat scabrous: heads more scattered or paniculate.—Rocky 
open ground from western Texas to Arizona, 
9. BRICKELLIA Ell. 
Characters as in Kuhnia, but the leaves often all opposite, the involu- 
cral bracts more numerous, and the bristles of the pappus merely scab- 
rous or at the most barbellate or subplumose.—Our species have 9 to 
25-flowered heads not over 12 mm. long. 
* Leaves distinctly petioled, all or mostly alternate: stems shrubby at base: inflorescence 
thyrsiform and leafy. 
+ Leaves mainly with truncate or subcordate base, crenate or dentate (but not laciniate.) 
1. B. Wrightii Gray. Usually much branched from a woody base, 6 to 12 dm. high, 
puberulent or a little scabrous: leaves broadly deltoid-ovate, or rounded-cordate and 
obtuse, or at most acute, more or less crenate-dentate: heads glomerate-paniculate : 
involucre often purple.—West of the Pecos. Var. RENIFORMIS Gray has thin some- 
times quite reniform (broader than long) coarsely crenate leaves, surpassing the 
glomerules of heads.—‘‘ Mountain valley near the western border of Texas” ( Wright). 
