CARDUACEAE 1443 
82. PHAETHUSA Gaertn. Perennial herbs or shrubby plants. Leaves 
alternate or opposite: blades entire or toothed, more or less decurrent. Heads 
numerous and clustered. Involucre narrow or broad: bracts not slender-tipped. 
tube, the ligules white or yellow, or wanting. Disk-corollas with a campanulate 
rout eontraeted into a shorter tube: lobes lanceolate to usi -lanceolate. 
f t 3 
Filaments ind pid than the anthers. Pappus of 1-3 awns.—Abou 
species, American.—CROWNBEARDS.—The stem is ridged or E 
Leaves alternate: ray-fiowers with white ligules. 
Leaf-blades undulate, sinuate, or serrate. 1. P. virginica. 
Leaf-blades pinnatifid or pinnately lob ed. 2. P. laciniata. 
Leaves opposite: ray-flowers with yellow ligules. 3. P. occidentalis. 
a (L.) Small. Stem 6-18 dm. tall, tomentulose or puberulent: 
ieat blades etes acters np AE to oval or ovate, 0-21 em. long: larger 
braets of the QU about 7 mm. long: 
disk. ere about 5 mm. long: achene 
winged, 5 mm. pm Md virginica 
.]-— (FRosT-wEED. ÍNDIAN- 
pta. —Dry soil, various on. Fla. 
to Tex., Mo., and Pa. 
2. p laciniata (Poir.) Small. Stem 7—16 
dm. tall, tomentulose: leaf iR ovate to 
elliptie “ovate | in outline, 5-22 em. long, the 
segments etimes ae as oe bracts 
of the AE about 6 mm. long: disk- 
corollas about 5 long: inen obovate, 
5-6 long: achene with wings as bro 
as the body, 5 [Verbesina 
laciniata (Poir) Nut t.] — Pineland and 
sandy hammocks, Coastal Plain, Fla. to S. C. 
P. occidentalis (L.) Small. Stem 9-20 pes tall, smooth and glabrous: 
le af- blades ovate to Ba dq rd 0—20 long: la DE pieds of the 
involuere about 6 mm. long, broadly linear: ligules 10-15 m ong: achene 
with very long pa af bristles and wingless or nearly so, p ó mm. long. 
[Verbesina occidentalis (L.) Walt.]—Rieh soil, various provinces, Fla. to 
Miss., Ill, and Pa. 
83. PTEROPHYTON Cass3 Perennial caulescent herbs. Leaves alter- 
nate or opposite: blades entire or toothed, deourront or sessile. Heads soli- 
dun broad: 
ry or few together, long-peduneled. Involucre broad: bracts shorter than 
the disk. Ray-flowers when e 5—10 pes or neutral, but always 
ind the ligules yellow or whiti Disk corollas with a eampanulate throat, 
into a shorter tube: jd triangular-lanceolate to lanceolate. Fila- 
ser jon than the anthers. Pappus of 1-3 very short, slender awns or 
wanting.—About 15 species, American. 
Stem winged: leaves decurrent. I. HETEROPHYLLA. 
ate m wingless: leaves merely sessile. II. NUDICAULIA. 
TEROPHYLL 
Leaf-blades pees beneath, very ie stem jer to the in- 
florescenc 1. P. helianthoides. 
1 iiu by Edward Johnston Alexander. 
a 
