352 
SYNGENESIA SUPERFLUA. 
Sp. pi. 3. p. 2032. Mich. 2. p. 113. Pursh, 2. p. 549. Nutt. 2. p. 156. 
Stem three to four or six feet high, with diffuse spreading branches, hairy, 
almost hispid. Leaves long, narrow, lanceolate, very entire, hairy and 
scabrous along the margin, slightly auriculate at base. Flowers in a loose, 
terminal panicle on small branches half an inch to three inches long. Scales 
of the involucrum lanceolate, acute, somewhat hispid, scarcely longer than the 
disk, frequently coloured. Florets of the ray numerous, narrow, bright 
purple. Seeds hairy, almost villous. 
The plant I have described and which I collected in the western districts 
of Georgia, belongs to the var. Spurius, A. Spurius. Willd. — but its bran- 
ches are more diffuse, and its flowers more scattered than I believe are com- 
mon in that variety. 
Grows in rich soils, sometimes to the height of ten feet* Pursh. 
Flowers September — October. 
21. Cyaneus? Hoffman. 
A. foliis lineari-lan- 
eeolatis, amplexicauli- 
bus, laevigatis; caule 
ramoso,glaberrimo, ra- 
mispatentibus; floribus 
racemoso - paniculatis, 
involucri squamis laxis, 
lanceolatis, discum 
aequantibus. 
Leaves linear-lan- 
ceolate, amplexicaule, 
smooth; stem branch- 
ing, very glabrous, the 
branches expanding; 
flowers in paniculate 
racemes; scales of the 
involucrum loose, lan- 
ceolate, as long as the 
disk. 
Pursh, 2. p. 550? Nutt. 2. p. 156. 
Stem two to three inches high, glabrous or slightly pubescent on the 
young branches. Leaves linear-lanceolate, those of the stem rather linear- 
subulate, somewhat scabrous, very acute, slightly amplexicaule. Flowers 
scattered along rigidly expanding paniculate branches, on small branches or 
peduncles half an inch to three inches long, not large. Scales of the involu- 
crum linear-lanceolate, nearly glabrous, loosely appressed, nearlyas longasthe 
disk. Florets of the ray numerous (twenty to twenty-four) narrow, purple? 
of the disk purple. Seed pubescent. 
I have inserted this species with much hesitation. I have no opportuni- 
ty of referring to the figure of Hoffman as the type of this species, and the 
plant I have described which was sent me under this name by Dr. Schwei- 
nitz is certainly not the plant of Pursh. It however differs from any spe- 
cies I have hitherto described, and until a good monograph of this genus 
with plates, shall be published, many of its species must continue obscure 
and doubtful. 
