1442 CARDUACEAE 
narrow. Heads erect or nearly so, radiate. Involucre hemispherie or de- 
pressed: braets narrow or broad, vdtinistely lax. ay-flo wers pgs en 
with a very short tube and a long yellow ligule. Disk-corollas with rie- 
funnelform throat abruptly narrowed into the short tube. Tilamenis lightly 
shorter than the anthers. Stigmas linear-lanceolate. Pappus sometimes of sev- 
eral scales between chaffy awns or teeth.—T wo Ene ies as follows: 
Leaf-blades linear or linear-lanceolate: involucral bracts appressed: ray-flowers 
i 1. H. grandiflora. 
Leaf-blades linear-filiform: involucral bracts spreading: ray- 
flowers 10-15. i 2. H. tenuifolia. 
P. grandiflora (T. & G.) Blake. Stem 6-13 dm. tall, simple or sparing gly 
PE above: leaves mostly pur n linear to "Hnear-lanceolate, 2-6 
rev volut 
eolate r n 
with laneeolate or ovate tips, hispidulous, 
the tips rather lax: ray-flowers s 16-20; ligules 
yellow m. d: 
,9 long is 
ac 5—6 long, narrowly marg 
wing-margined, strongly ribbed, pubescent 
about the upper edge, each side ted 
by a tooth, and one b th ometimes pro- 
Piet yo z awn. [Helianthella grandi- 
flora G.]—Pinelands, oak-woods, and 
i e T pen. Fla —Spr r.—fall. 
2. P. tenuifolia (T. & G.) Blake. Stem 3- 
11 dm. B simple or sparingly branched 
above: leaves alternate or opposite or whorled on the N part of the stem; 
blades linear filifor orm, 3-8 cm. long, acute, entire, revolute, very scabrous: heads 
showy: involucral bracts linear-subulate to fre onceolete. attenuate, spread- 
ing: disk 1-2 em. wide: achene unequally 4-angled, 3—4 mm. long, often 
utely pubescent, the margins prolonged into triangular scales. [Helianthella 
"err E T. & G.]—Sandhills and pinelands, N Fla.—Spr.-Fal. 
81. XIMENESIA Cav. Annual, caulescent herbs. Leaves alternate or 
sometimes opposite: blades toothed or somewhat laciniate. Heads peduncled, 
voluere flatti 
ar 
angular. Filaments nearly as long as the 
anthers. Pappus of short awns.—About 4 
species, American. 
1. X. encelioides Cav. Plant 3-7 dm. 
pale- ala ipsas: cep or ae 
late, 5-1 ong, serrate or incised, ae 
da 
ine 
to linear-lanceolate , 15-20 mm. long: ligules cuneate, 1-2 em. long: achen 7 
mm. long, broadly winged. — (SKUNK-DAISY. )—Hammocks and waste- a Key 
West, Fla., and several points in Ala. Nat. from Tex. to Ariz., and Colo. 
