390 
SYNGENESIA SUFERFLUA. 
acutis,subintegerrimis, 
venosis, subtus tomen- 
toso-pubescentibus; ra- 
cemis erectis, panicu- 
latis; ligulis elongatis. 
E. 
lanceolate, acute, near- 
ly entire, veiny, tomen- 
tose underneath; ra- 
cemes erect, panicu- 
late; florets of the ray 
long. 
Pursh, 2. p. 543. Nutt. 2. p. 162. 
I know not whether the species which in unison with Dr. Schweinitz I 
am describing as the S. Elata, be the real plant of Pursh, whose description 
is very brief. It accords, however, with it in its leading characters. 
Stem two to three feet high, terete, pubescent, when young tomentose, 
branches erect, not numerous. Leaves sessile, rather small, nearly entire, 
with elevated veins, pubescent, underneath almost tomentose. Scales of the 
involucrum linear-lanceolate, acute, pubescent. Florets of the ray seven to 
ten, nearly twice as long as the involucrum; of the disk ten to twelve. Seed 
glabrous. 
Grows in pine barrens near Louisville, Georgia. Mr. Jackson. Salem, 
North-Carolina. Dr. Schweinitz. 
Flowers September. 
89. Rigida. L. 
Stem and leaves hai- 
ry, scabrous; leaves 
ovate, oblong, those of 
the stem entire, the 
lowest serrate; flower 
bearing branches pani- 
culate; racemes com- 
pound, nearly fastigi- 
ate; florets of the ray 
long. 
Sp. pi. 3. p. 2067". Mich. 2. p. 118. Pursh, 2. p. 543. Nutt. 2. p. 
162 . 
Stem three to four feet high, slightly angled, very pubescent, when young 
tomentose, branches very numerous, forming a somewhat fastigiate corymb. 
Leaves sessile, approximate, very pubescent and scabrous, the upper very 
entire. Flowers large for this genus, somewhat clustered near the summits 
S. caule foliisque pi- 
losis, scabris; foliis 
ovato-oblongis, cauli- 
nis integerrimis, infi- 
mis serratis; ramis 
floriferis paniculatis; 
racemis compactis, sub 
fastigiatis, ligulis elon- 
gatis. 
