PART 111.] THE MECHANISMS OF FLOWERS. 319 
24 mm. long, and the wider throat 2 mm. long in addition. By 
themselves the capitula are small and insignificant, but very many 
(usually several hundred) are closely ageregated ; in an inflorescence. 
The red-bordered bracts, the reddish corollz of the florets, and 
the white projecting stigmas give this inflorescence a reddish-white 
appearance. In this plant the divisions of the style are quite as 
Fig. 110.—Eupatorium cannabinum, L. 
1.—A capitulum of four florets, in their first (male) stage. 
_ 2.—A single floret, in second (female) stage. 
From a to b each branch of the style bears a strip of stigmatic papilla on each edge; from b to 
t is clothed with hairs. 
, 1 0 brig as the whole corolla (5 mm.), They are furnished with rows 
| of stigmatic papillz along their edges, only for the first quarter 
% their length (a, b, Fig. 110, 2); forthe remaining three-quarters 
ey are thickly clothed all round with hairs. In the first period 
2 lower stigmatic part of the branches of the style remains still 
I 
| 
if 
Po a n nclosed i in the anther-cylinder (Fig. 110, 1); the ends, furnished with 
