179 
slender, tapering gradually to an acute tip. The arrangement 
of papille and hairs is as described for the tribe. The 
brush hairs (fig. 5) are large, linear and taper to an acute 
tip. They extend below the forks about two-thirds the length 
of the branches and cover the surface thickly. 
Elephantopus (Fig. 6). 
£. Carolinianus, Willd. The branches of the style are much 
like those of Vernonia except in an obtuse tip. The brush hairs 
(fig. 6) taper rapidly to an acuminate tip and are only about one- 
half the length of those of Vernonia Arkansana. The brush hairs 
extend below the forks for only about one-fourth the length 
of the branches. 3 
EUPATORIACE# (plate CXVII, fig. 7-23). 
Gray” says: ‘‘ Style branches elongated, more or less clavate 
or thickened upward, minutely papillose or puberulose or gla- 
brous; the stigmatic lines only near the base and inconspicuous.” 
In three of the six genera studied the style was very plainly 
club-shaped. In the others it was merely morecylindrical above 
the end of the stigmatic lines. The clavate character of the 
branches is, therefore, not uniform for all the genera of the tribe, 
as stated by some. They are either clavate or mostly cylin- 
drical above. Stigmatic lines only near the base is true in most 
cases. | Z 
In some genera, however, as in Mzkania, the stigmatic lines 
extend up for more than two-thirds the distance. A uniform 
character was, however, found in all six genera studied, namely, 
the stigmatic lines are always very narrow along the outer edges 
of the branches and the brush hairs cover the entire surface or 
the greater part of it above the end of the stigmatic lines. 
Kuhnia (Fig. 7-11). 
K. eupatorioides,L. Style branches distinctly club-shaped, as 
shown in figs. 7-9. The stigmatic papillz (fig. 11) are arranged 
in two narrow lines along the edges of the branches and occupy 
the lower three-sevenths of the branches. The papille are 
moderately large and acute. The brush hairs (fig. 10) cover 
almost the entire surface above the end of the stigmatic lines. 
They are very obtuse and broad. 
9. 1L.¢., p. 51. 
