SYNGENESIA SUPERFLUA. 
353 
22. VlRGATUS. E. 
Leaves linear-lan- 
ceolate, amplexicaule, 
very glabrous; stem 
sparingly branched, 
branches virgate, erect; 
heads racemose; scales 
of the involucrum very 
acute, slightly squar- 
rose. 
Stem erect, three to four feet high, glabrous, branches few, erect, strictly 
virgate, slightly pubescent at the summit. Leaves of the stem three to four 
inches long, three to four lines wide, sessile, amplexicaule, glabrous, with 
the margins a little scabrous; those of the branches similar but smaller. 
Flowers in simple terminal racemes, on peduncles half an inch to two inches 
long. Scales of the involucrum linear-lanceolate, very acute, almost mucro- 
nate, slightly squarrose. Florets of the ray, twenty to twenty-four, small, 
bluish purple. Seeds nearly glabrous. 
From the A. Cyaneus this species differs by its larger leaves and long, 
erect, virgate branches; from A. Phlogifolius which it most resembles in the 
size of its leaves, it differs by its want of pubescence, smaller flowers and 
simple racemes. 
Grows in the western district of Georgia 
Flowers September— October. 
A. foliis lineari-lan- 
ceolatis, amplexicauli- 
bus, glaberrimis; caule 
sub ramoso, ramis vir 
gatis, erectis; capitulis 
racemosis; involucri 
squamis acutissimis, 
sub squarrosis. E. 
23. Carolinianus. Walt. 
A. caule fruticoso, 
flexuoso, ramosissimo, 
pubescente; foliis sessi- 
libus, oblongo-lanceo- 
latis, utrinque attenua- 
tis; involucri squamis 
lineari-lanceolatis, pu- 
bentissimis, sub-squar- 
rosis. 
Stem shrubby, flex- 
uous, much branched, 
pubescent; leaves ses- 
sile, oblong lanceolate, 
tapering at each end; 
scales ofthe involucrum 
linear-lanceolate, very 
pubescent, somewhat 
squarrose. 
Sp. pi. 3. p. 2017- Walt. p. 208. Mich. 2. p. 111. Pursh, 2. p. 550. 
Nutt. 2. p. 156. 
Stem pubescent, flexuous and decumbent, leaning upon surrounding plants 
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