180 
Mikania (Fig. 12-142). 
M. scandens, (L.) Willd. Style branches (fig. 12-13) are not 
clavate as in Kuhnia, but are cylindrical above the end of the 
stigmatic lines. The stigmatic papille (fig. 14a) are arranged 
in two lines as in Kuhnia, but are wider and occupy fully two- 
thirds of the length of the branch: In shape they differ only 
slightly from Kuknia. The brush hairs (fig. 14) are larger and 
more acute than in Kunia. They do not cover the entire sur- 
face, but leave a narrow uncovered portion along the center of the 
branch. 
Eupatorium™ (Fig. 15-16). 
Eupatorium altissimum, L. Thestyle branches are distinctly 
clavate. Stigmatic papille (fig. 16) are arranged as in Kuhnia 
and occupy the lower two-fifths of the branch. The brush hairs 
(fig.15) cover nearly the entire surface above the end of the 
stigmatic lines. The largest hairs are just above the end of the 
stigmatic lines. 
According to Cassini, as quoted by Hildebrand, the styles of 
Eupatorium purpureum, E. sessilifolium, and E. altisstmum are like 
Eupatorium cannabinum. 
Brickellia (Fig. 17-18). 
B. Wrightii, Gray, var. tenera, Gray. The style branches are 
nearly like those of KuAnia, only becoming more gradually clavate, 
while the tip is more acute. Stigmatic papillee (fig. 18) are near- 
ly like those of Kuhnza in shape, size and arrangement. The 
brush hairs (fig. 17) are like those of KwAuza in all respects. 
Liatris (Fig. 19-20). 
L. squarrosa,(L.) Willd. The style branches are not clavate, but 
the ‘upper part is very long and cylindrical. The stigmatic lines, 
which are very narrow at the base of the branches, become some- 
what broader before they terminate. They occupy only about one- 
third of the length of the branch (fig. 20). The brush hairs are 
arranged as in the other genera. In the full grown style they 
are broad at the base, and taper to a rather acute point (fig. 19). 
According to Hildebrand™ they are long and slender before the 
flower opens, later they become broader at the base, but do not 
grow in length. . 
20 Hildebrand I. c., p., 16. 
aL, c., p. 17. 
