1458 CARDUACEAE 
ovate to Reise 2-5 em. long, pe e uu re 2-2.5 mm. high; 
outer braets ov obtuse: ligules white, 1-1.5 vide: disk- a E about 
1.5 mm. long: i less than 2 mm. a PUE iege minutely fimbriate 
and aristate. ([G. diui, (Fl SE. S. In > eult. grounds, and 
waste-places, throughout U. S. and S a of S. —(W. , Mex 
4.) —Sum.-fall.—A. Sd. arly pestiferous “weed of SU. rapid growth and 
seeding as to make eradieation extremely difficu 
parviflora Cav. with much smaller ray-flowers, pr pubescence, and 
d scales fimbriate, but not aristate, often occurs with G. ciliata nort th of 
our range, and may be looked for in N. "CG. and Tenn, or further S. 
93. TR L. Perennial, caulescent, decumbent herbs. Leaves op- 
posite: blades incised-toothed or pinnately dissected. Heads radiate. In- 
erous p 
About 12 species, tropical American 
1. T. procumbens L. Plant branched at 
the base, the branches hirsute: leaf-blades 
ovate to ovate-lanceo late, 2-5 cm. E in- 
eised or incised-lobed: involue 6-7 
high; braets hispidulous, the Cue lanceolate, the inner broad and abruptly 
pointed: ligules as broad as long: of the disk about 2 mm 
I hammocks, and cult. eru "S Lx . Fla. and the Keys. ' Nat. p 
(W. I.) 
94. HYMENOXYS Cass. Annual, biennial, or perennial, erect, cau- 
lescent herbs. Leaves alternate: blades pinnatifid or pinnatisect, the segments 
usually narrow. Heads radiate, or (in n ours) discoid, peduncled. Involuere often 
campanulate or hemispheric: bracts in 2 series, the outer smaller than the inner, 
firm and more or less united at the base. Ray-flowers, when present yellow or 
orange, few or several, pistillate, fruit-producing: ligules 3-lobed. Disk-flowers 
numerous, perfect, fruit-producing: corollas 
yellow, with a short tube and a cylindric or 
Pappus of 5 seales.—Seven species, North 
American. 
nr "m "yt 
MITTERE 
1. H. anthemoides (Juss.) Cass. Ste oi 
branched ents the branches ascending COR Od j 
or diffuse: leaf-segments narrowly line 
linear-filiform: peduncles RA fiut ted, en- 
larged under the head: involuere broadly 
