CARDUACEAE 1371 
dpa d but with short pedicels: braets lingual, — uniform, green 
often 7; li 
mostly so: rays en igules sometimes reddening at the tips: disk 
turning brownish- ie 1.—Shaded banks, Blue Ridge and more N provinees, S. C. 
and Mass.—Fall.—Differs from A. divaricatus, especially in stem, 
pe fon and br un 
4. A. excavatus Burgess. n A. divaricatus L.: leaf-blades thin, 
smooth, all iden alike, eliptic e with the rounded base abruptly 
exeava te d into a deep na nus; their margins continuously low-serrate 
p 
with cu ei teeth; petioles RA short a nd slender, shorter than the leaf- 
breadth, replaced by short broad wings at the principal axils; the upper ine 
often clas asped by ieee T. linear braeteals: heads forming con 
clusters borne on long suberect branches or reduced to a few distant ne. 
heads: braets ciliate, oe “backed, pale and thin, ed -oblong and obtuse on 
. some dut heads, x w and acutish on the ME elustered heads, the 
inner attenuate and w a tips: ligules of d ray white, or so metimes 
reddened: disk broad, po dus purplish-erimson.—Mountain or hillside 
bes Blue Ridge an nd m e N provinees, Ga. to N. Y.- —Early fall.—Resembles 
A. divaricatus, but the narrower, less-attenuate, more uniform leaf-blades differ 
in outline. sinus, and teeth. 
5. A. castaneus Burgess. Stem glabrate, terete, oa and wandlike, red- 
dish-brown or A with about 12 delie ate straight darker striae, and 
becoming sinuo the inflorescence: a leaf-blades dull- Lr 
stg? very thin of a dense and hard texture, minutely granular-roughened 
wh n dry, ovate- d closely s a. often unequally decurrent upon 
the short slender pet the t leaves mueh shorter Gui un 
eoarsely serrate and ns odes "à inus; rameal leaves laneeola te-attenuate 
or often all crescent-like ind decurved, sessile by a short cuneate base: inflores- 
cence nearly naked, narrow, composed of several An ved slender unequal 
branches bearin ng c close convex clusters all in flower at once and very short- 
lived: pedicels long, filiform, upeurved, som WAS bearing small cireular 
braeteals or discules: braets narrow, Die -obtuse, pale, with EE green d 
rays often 9; ligules linear, snow- -whi te, excessively thin, and soon pendulou 
disk soon turnin to rose-brown, sienna, or chestnut-color.—Clayey spots in 
i i , als N. Y. 
6 chlorolepis Burgess. Stem strong, glabrate, brownish, d below. 
angulate-striate Pied leaf-blades large, smooth, very thin, bro h-green, 
pale Hun ovate-aeute, very co pci serrate with outflun fect: pos deep 
arp; petioles od slender: axile leaves also large, irs Es 
ies with long fo rward-directed iot. t r ones sess inflorescence 
loose and irregula eads large, long-peduneled, inclined to idely Bm 
dep ligules of the ray nearly twice the length of the involuer ets quite 
uniform, thic road, short and scale-like, with very little ciliation air 
b or hair 
chiefiy golde en brown with a short dark-green rounded tip: disk turning crimson. 
— Mt. woods, Blue Ridge and more N provinces, N. C. to W. Va. and N. Y.— 
Fall.—Rese mbles 4. tenebrosus in the large d leaves, teeth, and bracts; 
differs especially in having the sinus sharp and the bracts Tounded, and in the 
absence and greatly prolonged entire bracteals. 
7. A. Boykinii Burgess. Stem slender, greenish and glabrate, much flexed ; 
leaf-blades ovate to elliptic- -acuminate, with broad enlarged sinus, set with 
strong and somewhat outflung be petioles eus inflorescence lax and 
irregular, of short branches given off wide angle, often continued in 
give 
clusters among t the lower axils; the eG als often conspicuous with ovate 
O 
