CARDUACEAE ' 1339 
3. C. gigantea Small. - oon dm. tall, sparingly N pubescent, at 
least when old: leaves nume e basal and lower cauline with spatulate, to 
oblanceolate or oblong- P A blades; upper eau uc leaves with e to 
oblong-laneeo t blades, often obscurely serrulate, sometimes apiculate: in- 
voluere 7-9 m igh; bracts linear-lanceolate to d aeute to slightly acumi- 
nate, S0 achene 2—2.5 mm. long.—Pinelands, Fla 
C. hyssopifolia Nutt. Stem 3-9 dm. tall, glabrous o or sparingly cobwebby 
when young: leaves numerous, the basal in a dense rosette, white cottony, with 
spatulate or linear-spatulate blades, cauline leaves Bn. cro wde d; blades rad 
linear to linear-filiform, 1-6 em. long: involuere 6-8 mm. lon ng; bra ets ri c 
often abruptly so with erect tips: achenes 2-2.5 mm. Pr ——Dry pinelands, Coastal 
Plain, Fla. and Ala. 
5. C.sc cd : G. ne 3—12 dm. tall, more or less rough-glandular: leaves 
rather numerou e basal in a very dense rosette, white-eottony, with spatulate, 
often anes “toothed blade s: blades of the cauline leaves linear-spatulate to 
ae ar, acute, more or less glandular- sabe acute, sessile: involucre 6—9 
m. high; aan ee subulate to linear, rigid, acute, often abruptly so: achene 
25-3 mm. long.—-Pinelands, prairies, and scrub, Coastal Plain, Fla. to Miss. 
6. C. mariana (L.) Nutt. Stem 1-6 dm tall, more or less eobwebby; and 
glandular in the dpa cn blades of the | ca line leaves spatulate to elliptic or 
oblong, 2-12 em. long, n acute, entire or remotely toothed, the lower ones 
narrowed into petiole like pi heads showy: involuere 8-10 mm. long, braets 
linear, acute, glandular, p achene about 2 mm. Jong —Dry woods and hill- 
sides, various provinces, Fla. to La., Tenn., and S N. 
C. arenicola Alexander. Stem dt 3 dm. tall, white cottony: blades of the 
cauline leaves various, the lower ones slightly broadened u upward, 1-3 : 
he upper ones Eas d ola to linear-lanceolate, ipia i the base sessile, 
all white cottony-lanate: bracts of the involucre rather ul the inner 
bracts narrowly linear, acuminate: achenes about 2 long.—Sandhills, 
near Hartsville, S. C. 
8. C. lanuginosa Small Stem below the n d white-woolly, finely 
glandular above and in the inflorescence, 2 dm. tall or more, sometimes branched 
wi 
9. C. A RE Small. Stem usually branched at Une e the branches curved, 
2.9—4 dm. long, white-cottony below, glandular above: leaves white- inei. ; basal 
and low er cauline leaves mun DER blades mostly ds than 1 dm. long; blades 
of the upper cauline entire: euneate to oblong-cuneate e, 1.5-2.5 cm. s obtuse, 
partly clasping: peduncles inconspicuously glandular: involuere 6-8 mm. high; 
bracts firm, glandular, often TE so, acute or slightly acuminate.—Serub, 
.sand-dunes and pinelands, pen 
1 
glandular above, the branches often dei Ta and lower stem-leaves with 
spatulate or oblanceolate blades; upper cauline leaves smaller; blades oblong to 
linear-oblong or broadly linear, eism p undulate: involuere 7-8 mm. high; 
