SYNGENESIA iEQUALIS. 
295 
culatis, superioribus 
indivisis, linearibus, 
fasciculatis, omnibus 
punctatis, pubescenti- 
bus. E. 
Sp. pi. 3. p. 1750. Pursh, 2. p. 512. Nutt. 2. p. 135. 
E. Compositifolium. Walt. p. 199- 
Chrysocoma Coronopifolia. Mich. 2. p. 102. 
Root perennial, creeping? Stem herbaceous, erect, three to four feet 
high, pubescent. Lower leaves pinnatifid, segments five to seven, linear, 
but acute at each end, slightly and sparingly denticulate. Panicle com- 
pound, with the branches expanding. Involucrum eight to ten-leaved, five- 
flowered, the five interior leaves equal, imbricated at base, with three to five 
smaller ones, all pubescent, linear-lanceolate, very acute. Corolla white, 
scarcely longer than the involucrum, slightly five-cleft. Stamens as long as 
the corolla. Germ oblong, angled. Style much longer than the stamens, 
two-cleft. Stigmas single. Seed glabrous, crowned with a scabrous pap- 
pus as long as the corolla. 
This species is closely allied to the preceding, although agreeing in charac- 
ter, they differ in habit and appearance from all the other species of this 
genus — under this name two species are now probably included. 
Grows in dry poor soils. 
Flowers September — October. 
the upper undivided, 
linear, clustered, all 
dotted, pubescent. 
3. PlNNA TIFIDUM. E. 
<li », m - 
E. foliis pinnatifidis, 
inferioribus verticilla- 
tis, superioribus alter- 
natis, laciniis lineari- 
bus, pubescentibus; flo- 
ribus corymbosis. E. 
Leaves pinnatifid, 
the lower verticillate, 
the upper alternate, the 
segments linear, pube- 
scent; flowers in co- 
rymbs. 
Root perennial. Stem erect, three to four feet high, striate, branching 
towards the summit, pubescent on the branches. Lower leaves verticillate 
by fours, two to three inches long, pinnatifid, the segments linear, one to one 
and a half inches long, the upper generally alternate. Flowers in a large 
fastigiate corymb. Involucrum eight to ten-leaved, five-flowered; leaves 
oblong, lanceolate, pubescent, sprinkled on the back with glandular dots. 
Corolla white, five-cleft. Style much longer than the corolla, deeply two- 
cleft. Stigmas glandular. Seed oblong, deeply striate or furrowed, crown- 
ed with a scabrous pappus rather longer than the corolla. 
This plant appears to connect the two preceding species with the rest of 
