late o rfn r^w L lLlnn'^ l™ 7 s™ooth> often glaucous ■; stem loosely panicu-
a e nr ehlnn^ -ymb°Se at the summit 5 le^ e s lanceolate, ovatVlanceo-
sparinTlv si rrf;p r e Cr US’ V6ry Sm°oth’ with scabrous margins, entire or
3 Z'fuT:'. L °W6r nf r0wed towards base, or tapering into a
cordate^t the^hnse ? fk uppeJ clasping and mostly somewhat auriculate or
3 re rW l f t l v * 08! f * h6 brancbes vej7 small; scales of the obovoid
wkh short abr mtW n / ’ appreS?ed’ r!Sid> lanceolate or broadly linear, who short abruptly acute or acuminate herbaceous tips: achenia shinina
glabrous, or pubescent with a few scattered hairs. - L i Z . s p e c t J 876 1
f 468 ^ t t 1 3; P‘ 206 ; L lndL boL t- 1500; DarUngt. ! ft. Cesi
Pen A U 3-°5' p ' amplexicaulis> Muhl. ! in Willd.Pennsylvanicus, Poir. suppl. 1 . p. 498, ex Nets. ^* ’^ ^ 2*0 4 6 . “a !
nvfiflT°r^ glaucous; upper leaves cordate-clasping, oblong-lanceolate or
SHoff:ml. anprhyto agtr6.; b, lf. 3pl.e S 71°,f tbe involucre more" numerous.—A. cyaneus" t . B. f 1 ; Pursh, fl. 2. p. 550 ; N e e l l 7 -
£ & glaucus & A- politus’ w - T. sV
splc. 3.aJ.e2046?gated lance0late or linear-lanceolate.—A. kevigatus, Willd.
o b, ° i rS of woodlands and thickets, Canada! to Georgia! Missouri! and
Saska chawan! common. Aug.-Oct.-A beautiful species, readily recog-
headd,\T v'1 hi *5g S"me diversities in the foliageP and the size of the
2-3dSe?WvhPOofthed and, “ ore, or less glaucous stem and leaves (the former
"A “ ®* h'Sh.’ oft®n Purple); the somewhat coriaceous regularly imbricated
nd appressed scales of the involucre, which are white (slightly ciliate), with
orgratherSt midneraeVand sh°rt rhombic green tips; the headj middle-sized
ttoo vvtioo leetr. TThhee ffllo"'w* ers o£f tThe Tdis*k3 Subs°uWalyly r ac7hSa nbgrieS htot pbulurep l°er :i ntdhieg °p,a cphpaunsg bineg
comes tawny or brownish. We entirely agree with D?. DarlingtonT the
ssppeecciieess . TThhee llaarr™ge“ s ufite tof £specSime nvsa riboeufso rfeo rums sh aovfe t hbiese pnl annatm inetdo sfeovr etrhael
most part by several distinguished botanists, whose determinations so seldom
a f? rd tbat we feel the greater confidence in our own opinion. We can
make nothing of the characters derived by Nees from the alveoli of the receptacle,
whether naked, ciliolate, or piliferous. The radical leaves are
“I f f 01 *Patulate-°blong> serrate, on winged petioles which are usually
abate at the base; the earliest smaller, more rounded or obtuse, crenatetht
<)rUlne y.fry ffor“ 2 t0 5 inches in length, and one-third to an
inch and a half in width, the broader ones often -abruptly narrowed at the
base; the upper surface shining; the reticulations loose and manifest.
Branches of the inflorescence rather rigid, loose, few or numerous; the
leaves gradually reduced to short lanceolate bracts.
A ' virg atus (E ll.): very smooth; stem strict; the branches few and
virgate, racemose at the summit; leaves linear-lanceolate, entire, with sca-
I Z T .Z c11,llola,te-serrulate margins, partly clasping; those of the branches
• f a*l 3nd I?umer,ous’ erect> subulate-acuminate ; the lowermost tapering
at the base; the radical spatulate-oblong; scales of the somewhat hemispherical
involucre lanceolate, acuminate; the exterior loose or slightly snuar-
rose-spreading; achenia glabrous.—E ll.! sk. 2. p. 353. J 1
P- stem stout; the virgate branches numerous, somewhat compound; heads
larger; lower caulme leaves oblong-lanceolate.
y. stems slender, often simple; cauline leaves elongated linear-lanceolate
the margins more strongly ciliolate-scabrous.—A. attenuatus, L in d l.! in
Hook, compan. to bot. mag. 1. p. 97.
Western districts of Georgia, Elliott! p. Georgia, Dr. Boykin! y. Jacksonville,
Louisiana, D r um m o n d ! Western Louisiana, D r . H a le ! Sept.-
Oct.—Resembles considerably the narrow leaved forms of A. tevis; but is
distinguished by the virgate branches and racemose inflorescence; the scales
of the involucre with sharper spreading points, the exterior often loose and
passing into the very small bract-like leaves ; which are usually numerous
or crowded on the branches, varying from 3 to 6 lines long, rigid, subulate-
acute Or acuminate. Lower leaves 3 to 5 or 6 inches long, 3 to 4 (or in /?.
5-10) lines wide, shining above, coriaceous. The plant of Elliott is intermediate
between our specimens from Dr. Boykin (which has shorter and
broader cauline leaves, the lower occasionally serrulate) and those of A.
attenuatus, L in d l. Drummond’s specimens are remarkably slender, and
about 2 feet high. In those from Dr. Hale, the margins of the leaves are
still more strongly serrulate-scabrous, or the uppermost even minutely ciliate-
hispid, and the heads are more obconical. Rays apparently deep blue.
25. A . concinnus (Willd.): stem nearly glabrous, somewhat corymbose,
loose; the branches virgate, dichotomous-paniculate; leaves lanceolate,
partly clasping, remotely and sharply serrate,, with scabrous margins, those
of the branchlets oblong, entire; scales of the involucre linear, acute, closely
imbricated. Nees.— W illd . enum. 2. p . 884 ; Nees, A s t. p . 121 ; L in d l.
hot. reg. t. 1619; D C . p rodr. 5. p . 245 (excl. syn. Colla, hort. R ip u l . ) ;
Hook. Jl. B o r.-Am . 2. p . 13 ? A. cyaneus ? E ll. ! sk . 2. p. 244.
p. branches more strict and racemose, with smaller and more numerous
leaves. Nees, l. c.
North America, Willdenow. (In fields and woods, New York & Pennsylvania,
P ursh.) N. Carolina, Schweinitz ! (in herb. E ll.) Florida, M r .
R e a d ! (in herb. acad. P h ila d .) Saskatchawan, Drummond, ex L in d l. !
Sept.-Oct.—We have copied the specific character from Nees, having seen
no indigenous specimens which altogether accord with the plant cultivated in
the Berlin Botanic garden (from which Willdenow described the species) and
elsewhere: the fragment from Saskatchawan (in herb. Hook.) is not satisfactory,
and may belong to A. las vis. But Elliott’s A. cyaneus ? (judging from
an imperfect specimen) appears to be the same as the cultivated A. concinnus
f the upper cauline leaves are linear-lanceolate, and those of the numerous
diverging branches narrowly linear; the heads rather smaller than in
most forms of A. he vis; and the young achenia are minutely puberulent.
The specimen from Florida clearly belongs to the same species; but in its
more strict branches and racemose heads it accords with the description of
A. concinnus p., Nees ; and the leaves of the branches are also rather slender
and narrowly linear. The rays are blue, and the flowers of the disk
change to purple.—W e know not from what source the original A. concinnus
was derived. Willdenow compares the leaves with those of Phlox
maculata; and the stem is said to be one and a half to two feet high.
26. A . iurbinellus (Lindl.): stem and slender paniculate branches smooth
or minutely puberulent-scabrous; leaves lanceolate, smooth, entire, with ciliolate
scabrous margins, tapering to each end, acute, slightly clasping; those
of the filiform branchlets subulate; involucre clavate-turbinate, as long as
the disk; the scales imbricated in numerous series, linear, obtuse, concave,
herbaceous merely at the tips; achenia minutely puberulent-scabrous (under
a lens).—L in d l .! in Hook, compan. to bot. mag. 1. p . 98, in D C . p rodr.
5. p. 244.
St. Louis, Missouri, D rum m o n d ! Louisiana, D r . Leavenworth!—Stem
apparently 2-3 feet high, often very much branched in a corymbose-paniculate
manner ; the branchlets rather numerous, lax, very slender, racemose or
slightly paniculate, terminated by middle-sized heads. Lower leaves about
3 or 4 inches long, rather opaque, pale, sparingly reticulate-veined, or obscurely
3-nerved, tapering to an acute point, the margin upwardly almost