384 
SYNGENESIA SUPERFLUA. 
28. Virgata. Mich. 
S. caule simplici, lae- 
vi; foliis glabris, ob- 
loogo-lanceolatis, sub- 
obtusis, erectis, puncta- 
tis, margine scabris, 
inferioribus parce ser- 
ratis; racemis erectis, 
virgatis. 
Stem simple, smooth; 
leaves glabrous, ob- 
long-lanceolate, rather 
obtuse, erect, dotted, 
scabrous along the 
margin, the lower spa- 
ringly serrate; racemes 
erect, virgate. 
Mich. 2 . p. 117* Pursh, 2. p. 538 . Nutt. 2 . p. 160. 
Root perennial. Stem very erect, two to four feet high, attenuated to- 
wards the summit, striate, nearly glabrous. Lower leaves nearly a foot 
long, spathulate-lanceolate, the upper diminishing, sessile, appressed, ob- 
long-lanceolate, all nerved, somewhat carnose, scabrous and serrulate along 
the margins, sometimes acute, dotted, veins pellucid. Flowers rather large, 
in erect, appressed racemes. Scales of the involucrum linear-lanceolate, 
acute, pubescence appressed. Florets of the ray five to seven, with a scale 
sometimes attached to the tube of the corolla, of the disk about eight* Seed 
striate, hairy. Pappus hairy, somewhat scabrous. 
Grows in damp soils, along the margins of swamps. 
Flowers June — October. 
29. Pulverulenta. Nutt. 
S. caule simplici, fo- 
liisque pulverulento- 
pubescente; foliis ses- 
silibus, inferioribus el- 
lipticis, serratis, supe- 
rioribus obovatis, inte- 
gerrimis, margine sca- 
bris; racemis erectis, 
spiciformibus; ligulis 
(10) elongatis. 
Stem simple and 
with the leaves covered 
with a pulverulent pu- 
bescence; leaves ses- 
sile, the lower elliptic, 
serrate, the upper obo- 
vate, entire, scabrous 
along the margin; ra- 
cemes erect, spiciform; 
florets of the ray long. 
Nutt. 2. p. l6l. 
A species which might be confounded with the preceding, though quite 
distinct. Nutt. 
