G. palustre Nutt. ———? A small woolly anmal 3-20 cn. tall, 
mostly branched at the base, the stems usually slender; leaves 
ppleasesiete: 1-1,.5 cm. long, 2,5-5 mm, wide, rarely as mich as 3 cm, 
long and 6-7 mm, wide, obtuse, sessile, entire, loosely woolly with soft 
hairs, frequently becoming glabrate, those below the clusters of heads 
crowded, forming a leafy involucre; heads few, crowded in the upper axils, 
their involucres bell-shaped, the bracts 3-3.5 mm, long, narrowly oblong, 
obtuse, thin and scarious or membranous, green below, then brownish, white 
at the tips; flowers whitish; achenes .5-.6 mm. long, minutely roughened, 
Yrequent at lower elevations in muddy ground or vwarnal pools which 
later dry; occasional in burns. 
@.2)> G, microcephalum Nutt. ————-> a white-woolly perennial herb, the stems 
“ : 
several or solitary, slender, 
30=-50-cm, tall; leaves linear-oblanceolate, 
the upper linearelanceolate, only the lowermost narrowed to indefinite 
petioles, the rest sessile, all decurrent upon the stems for 5-8 mm,., more 
or less white-woolly, acute; heads in ovoid or subglobose clusters at the 
tips of the branchlets, the branches of the inflorescence ascending; invol- 
ucral bracts 2-4 mm. long, the outer broadly ovate, obtuse, the inner narrowly 
oblong or lanceolate, acute, thinly woolly and green below the middle; flowers 
yellowish; achenes .7 mm, long, mostly curved, 
Frequent in burns at low elevations, 
ee 
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