1380 CARDUACEAE 
or serrate, slightly rough-margined, the upper all sessile and strongly age 
A ng elliptic- -lanceolate, oblanceolate or ovate, acute or obtusish, 2-10 e 
; those of the basal and lower eauline po gradually narrowed into Se 
ee bases, those of the bunc often small and scale-like: ya pub 
numerous, about 25 mm. broad: involuere umet ate; bracts of the involucre 
rigid, acute, appressed, broadly Ss ee imbrieate in several series: ray- 
flowers 2 ligules blue or violet: pappus Mesi achen a glabrous or nearly 
S stony soil, various provinces an 
, Ga. to La., Kans., N. D., 
Me. — Fàll. iib a asters for its smooth, 'eool, RE surfaces. 
41. A. concinnus Willd. Similar to narrow- -leaved pum of A. laevis in 
d the stem glabrous or sparingly pubescent above 9 dm. to ps 
ately s leaf-blades elongate-laneeolate to m. entire (or 
tue serrulate), 2-7 em. long, those of the upper cauline leaves sessile, a 
clasping, those of the basal and lower cauline ves spa eui or elliptic, ed 
rowed into res petio e-like bases: heads usually numerous, abou 
broad: bracts of the i E vith rhomboid acai herbaceous tips: sn ree 
a i purple ae ne woods or dry soil various provinces N of 
astal Plain, N. C. to Ark. and Conn.—Fall. — Resembles A. laevis, but more 
on mbed, the heads smaller aad es narrower 
49. A. purpuratus Nees. Stem 4-12 dm. high, slender, glabrous, simple, or 
Pone above, the branches pere puber ie : leaf-blades fir rm, glabrous, 
si he 
rk- 
or long-li -linear, 5-12 cm. long, acuminate; basal a lower cauline leaves petioled, 
iun lanceolate, obtusish; those of the branches very small: heads rather few, 
. loo racemose, 16-25 mm. broad: involuere broadly campanulate: bracts 
eo ous md Beg posi ear pene cate in several series, the green 
s dc e ray-flowers 5—10, their ligules blue or violet, E mm. long: 
pappus tawny: achene ERS eue and open woods, va s provinces, 
Ga. to Tex., Ark., and Va.—Late Sum.—Fall.—Resembles A. m ‘put tits heads 
more racemed, apt to be solitary on m. "branches the braets narrower-tipped, 
the leaves greatly narrow a the blades long-linea 
43. A. attenuatus Lindl. Stem glabrous, 6 dm. high or lese: leaf -blades 
about l em. 
bracts as in A. diei in Rs pon which it differs i s le eaves, Rr 
smaller heads, m narrowed inflorescence of short ed >y mewhat 
squarrose lower pac. whieh pass gradually into spreading du on the 
pedicels. [A. virgatus y T. & G.]—Dry soil, Coastal Plain, Ala. to La.—Fall. 
44, A. ursinus Burgess. Stem stout, smooth, glabrous below the inflores- 
ane ol peculiar in the crowded nodes of its base and in florescence, there 
B em ee ess apar anu and in the abruptly remote nodes of the ste m between n, 
hori acco Or ‘spatulate, sometim de » ad, with 
eiliate petioles; minute stubby met ioe even oe the larger O 
beneath, and occurs on the main stem and bra e gri. Pops de 
whieh tends to ellipsoid and broadly raeemose type: he — sees seus ary oO 
j ice the size o . atten 
virgate bran i 3 em. broad, 1 em. hi e 
pedicels shaggy with conspicuous uniform close ely- ADA D which 
are 1 em. long, each appressed half-way and with outeurved tip; upper braetlets 
more spreading and furry and passing pia s into the braets of the 
involuere; dp loose, broa a bra chiefly linear- "attenuate, 
tapering from the base, their e = p rge, Tater te, and conspicuous. 
[A. virgatus B T. & G. ‘not Banks]—Mountain slopes, Blue Ridge, Ga.—Late 
sum.—fall 
