CARDUACEAE 1341 
1. P. pinifolia (Ell) Nutt. oo 2-4 dm. tall: blades of the cauline leaves 
a ME inner bracts of the involucre 4-5.5 mm. long, glabrous: ligules 
ong. [Chrysopsis pinifolia Ell. ]— 
We 
ape 
6-7 mm. lor 
Sandhil Ils, Taylor County in the Coastal j 
Plain of "Ga. —Fnll. WAG 
AS 
Ny 
P. flexuosa (Nash) Small. 
ligules 8-10 mm. long: tiskceorollas 7 7-8 mm. 
long. [Chrysopsis ps Nash]. — Dry 
sandy pinelands, M FI cu. —fall. 
Tracyi Small. Stem 3-5 dm. tall: 
d pues leaves narrowly 
linear, e ones greatly n \ 
inner bract Ut "the voles 7-9 m 
long- ciliate pes 11-12 mm. long. (OS, ysopsis Tracyi Small.]—Pinelands, 
pen. Fla. and the Keys.—All yea 
. £raminifolia (Michx.) Nutt. Stem 3-9 dm. tall: blades of the cauline 
leaves iun ie "a pud or linear-subu - inner braets of the involuere 
7-1 gules 7-9 mm. long: disk-corollas 7-8 mm. long [Chrysopsis 
n d (Michi) N utt. C. argentea vds i —Sand oy often acid, soil, mies 
Plain and adj. provinces, Fla. to T and Md.—(W. I.)—Sum.—ear] 
wint. or all year S.—P. pando o Fernald, distinguished. m "the 
pee cauline leaves nearly the same length as the lower, grades into the typical 
. P. microcephala Small. Stem 4-7 dm. tall: blades of the cauline leaves 
linear-lanceolate: outer bracts of the ie broadly is not gland- 
ular; inner braets 5—6 . long: ligules 3-4 mm. long: filaments shorter than 
the anthers. [Chrysopsis microcephala be uL soil, Coastal Plain and 
adj. provinces, Fla. to Tex. and S. C.—Sum 
6. P. Ruthii Small. Stem 1-3 dm. tall: blades of the cauline leaves linear 
bh m linear Pu outer braets of p c a uude. 
er bracts 6.5-7.5, m ong: filaments longer than the anthers. Du psis 
Ruthi Small. ]—Roeks, p re Valley, ee Valley, Tenn.—Fal 
7. P. aspera (Shuttlw.) Small. Stem 3-7 dm. tall: blades of the cauline 
leaves linear to narrowly de lanceolate: outer pede of pu PA lanceo- 
late, glandular; inner bracts 6-8 mm. long: disk corollas mm. g: fila- 
me nts much shorter than n. anthers. [CI ysopsis a Shatil. -»5 soil, 
mostly in pinelands, Coastal Plain, Fla. to La. and Va. 
P. oligantha (Chapm.) Small. Stem 3-6 dm. : blades of the cauline 
leaves linear to elliptic: outer bracts of the voluere lanceolate, glandular; 
inner bracts 7— ong, strongly ciliate: dis 7-8 mm. long: fila- 
k-e 
ments as long as the anthers or longer. Did sopsis pot Chapm. ].—Pine- 
lands, Coastal Plain, N Florida and SE Ala.—Spr. 
24. HETEROTHECA Cass. Annual or biennial, pubescent herbs. 
Leaves alternate: blades entire or toothed. Heads rather large. Involuere 
