SYNGENESIA SUPERFLUA. 
325 
1. POLYCEPHALUM. 
G. her I) ace urn, erec- 
tum; foliis lineari-lance- 
olatis acutis, supra gla- 
bris, subtus pubescen- 
tibus; eaule paniculato, 
tomentoso; corymbis 
terminalibus, coarcta- 
tis. 
Herbaceous, erect; 
leaves linear-lanceo- 
late, acute, glabrous on 
the upper surface, pu- 
bescent underneath; 
stem paniculate, to- 
mentose; corymbs ter- 
minal, clustered. 
Mich. 2. p. 127- Pursli, 2. p. 524. 
G. Obtusifolium. Sp. pi. 3. p. 1880. Walt. p. 203. 
Root annual ? Stem one to two feet high, branching near the summit., 
covered with a white tomentum. Leaves alternate, sessile, linear-lanceo- 
late, nearly acute, entire, slightly undulate, nearly glabrous on the upper 
surface, tomentose, white underneath. Flowers in large terminal corymbs, 
composed of heads aggregated in small clusters. Involucrum imbricate, 
conical, leaflets oblong, white, tomentose at base; female florets slender, yel- 
lowish in the border, five toothed, stamens none, style longer than the corolla ; 
hermaphrodite florets with the corolla funnel shaped, yellowish, the border 
five-cleft, stamens as long as the corolla. Seeds cylindrical, glabrous. Pap- 
pus hairy, as long as the corolla. Receptacle naked, flat, dotted. 
Grows in dry pastures — very common. 
Flowers September — October, 
2. Perpureum. 
G. herbaceum; foliis 
lineari-spathulatis, sub- 
tus tomentosis; caule e- 
recto, simplicissimo; 
floribus sessilibus, glo- 
meratis, terminalibus 
axillaribusque. 
Herbaceous; leaves 
linear spathulate, to- 
mentose underneath; 
stem erect, simple; 
flowers sessile, cluster- 
ed, axillary and termi- 
nal. 
Sp. pi. 3. p. 1884. Mich. 2. p. 127- Pursh, 2. p. 525. 
Gnaphalium Hyemale. Walt. p. 203. 
Root perennial, stoloniferous. Stem erect and assurgent, simple, tomen- 
tose and white, twelve to eighteen inches high. Leaves sessile, oblong, obo- 
vate, slightly mucronate, entire, undulate, obscurely triplinerved, tomentose, 
particularly on the lower surface, which, like the stem, is white. Flowers 
