286 
SYNGENESIA ^QUALIS. 
1 . Oligophylla. Mich. 
V. caule simplici, su- 
perne ramoso; foliis ra- 
dicalibus ovalibus, cauli- 
nis lanceolatis, omnibus 
dentatis; corymbo pani- 
culato; involucri squamis 
lanceolatis, acuminatis. 
Stem simple, branch- 
ing towards the summit; 
root leaves oval, stem 
leaves lanceolate, all 
toothed; corymb panicu- 
late; scales of the invo- 
lucrum lanceolate, acu- 
minate. 
Mich. 2. p. 94. Pursh, 2. p. 511. Nutt. 2. p. 134. 
Chrysocoma Acaulis. Walt. p. 196. 
Root perennial, stoloniferous. Stem about two feet high, furrowed, a 
little pubescent and scabrous. Root leaves large, oval, acute, coarsely but 
acutely toothed ; stem leaves a little crowded at the base of the sterff 1 , scatter- 
ed towards the summit, finely toothed, sometimes serrate ; all scabrous on 
the upper surface, pubescent underneath, particularly along the veins. Pe- 
tioles of the radical leaves about two inches long ; of the stem leaves only 
an attenuated base. Flowers scattered in an irregular panicled corymb. 
Involucrum imbricate ; scales ovate-lanceolate, pubescent, fringed, acumi- 
nate, the lower ones filiform at their summits. Corolla purple, deeply five- 
cleft, much longer than the involucrum. Seeds oblong, striate, hairy, crown- 
ed with a double pappus ; the exterior composed of many short scales 5 the 
interior hairy, somewhat scabrous. 
Grows in damp pine barrens, and along the margins of swamps. 
Flowers June — July. 
2. SCABERRIMA? Nutt. 
Y. caule simplici; fo- 
liis lineari lanceolatis, 
denticulatis, scabris, pi- 
losis; corymbo subumbel- 
lato; involucri squamis 
longe mucronatis. 
Stem simple; leaves 
linear lanceolate, denti- 
culate, scabrous, hairy; 
corymb somewhat urn- 
belliform; scales of the 
involucrum conspicuous- 
ly mucronate. 
Nutt. 2. p. 134. 
Root perennial. Stem about two feet high, slender, very hairy near the 
base, smooth and nearly naked towards the summit. Leaves somewhat 
crowded on the lower part of the stem, sessile, two to three inches long, 
hairy and scabrous on both surfaces, with the margins revolute and sparing- 
