VERTICILLASTER.— MIXED INFLORESCENCES, 217 
White Dead-nettle (jig. 395), and commonly in other plants of 
the Labiate order to which it belongs. In it the flowers appear 
at first sight to be arranged in whorls around the axis, but upon 
examination it will be seen that in each apparent whorl there 
are two clusters or glomerules axillary to two leafy bracts, the 
central flowers of which open first, and hence the mode of ex- 
pansion is centrifugal. To these false whorls, thus formed of 
two axillary glomerules, the term verticillaster is frequently 
applied ; but this variety of inflorescence is sometimes regarded 
as a contracted form of the dichasium. 
We have now finished our description of the different kinds 
of regular inflorescence, and from what we have already stated, 
Fie. 443. 
= |: 
Fig. 443, Inflorescence of the Box 
(Burus sempervirens).— Fig. 
444, Mixed inflorescence of a 
species of Senecio. 
it may be readily understood that they may be situated either at 
the apex of the stem, or at the extremities of branches, or in the 
axil of bracts. But besides the above regular kinds of inflor- 
escence, all of which are comprehended under the two divisions 
of indefinite and definite as now described, there is a third 
division, which consists in a combination of these two forms, to 
which the term mized inflorescence has been accordingly given. 
3. Mixep InFLiorEescence.—This kind of inflorescence is by 
no means uncommon. It is usually formed by the general in- 
florescence developing in one way, and the partial or individual 
inflorescences in another. Thus in plants of the natwal order 
Compositze (fig. 444), the terminal capitulum is the first to ex- 
pand, and the capitula, as a whole, are therefore developed in 
