iBYNGENESIA jEQUALIS. 
273 
* Floribus spicatis 
vel racemosis, radici- 
bus tuberosis. 
L. foliis linearibus 
integerrimis, glabris, 
basi ciliatis, nervosis 
et punctatis ; capitulis 
spicatis ; squamis in- 
volucri linearibus, ob- 
tusis. 
* Flowers in spikes 
or racemes ; root tube - 
rous. 
Leaves linear, en- 
tire, glabrous, ciliate 
at base, nerved and 
dotted ; flowers in 
spikes; scales of the 
involucrum linear, ob- 
tuse. 
Sp. pi. 3. p, 1636. 
Muhl. Cat. ? p. 70 
Serratula Spicata. Lin. Gron. 
Root tuberous, perennial. Stem two to four feet high, simple, glabrous. 
Leaves linear lanceolate, very narrow, acute, dotted, somewhat rigid, spa- 
ringly fringed at base. Floicers in a terminal spike, somewhat scattered,, 
much longer than the bracteal leaves. Involucrum cylindrical, about 8 -flow- 
ered, scales oblong, somewhat obtuse. Corolla bright purple, longer than 
the involucrum, and with the long style sprinkled with glandular dots. 
Seeds furrowed, very hairy, crowned with the feathered pappus. 
Var. Macrostachya. Mich. 
Mich. 2. p. 91. Pursh, 2. p. 50 7 . 
Stem 3 to 5 feet high. Leaves longer and narrower in proportion to their 
length than in the preceding variety, and more conspicuously fringed, flow* 
ers in a long terminal spike, on pedicels 1 to 2 lines long. To this specie^ 
the figure of Dillenius Hort. Elth. t. 72. f, 83. appears to belong. 
Grows in flat pine barrens. 
Flowers, August — October. 
2. Pycnostachya. 
L. caule simplici, 
hirsute : foliis strictis, 
angusto-Iinearibus, pu- 
bescentibus ; spica lon- 
ga, floribus confertim 
sessilibus; involucris 
M 
Stem simple, hairy; 
leaves straight, narrow 
linear, pubescent; 
spike long, flowers clus- 
tered, sessile ; involu- 
crum appressed, squar- 
2 
YOL. II. 
