AND POLLEN IN MELIA. 113 
grumous nuclei of each cellular sub-division of the mass, then 
present traces of 3, or very generally 4 nary division. I 
have not paid attention to the rates of development of the 
different cells. The transition is difficult to see, possibly 
from the quickness with which the change takes place. 
1. Side view of anther. 
2. Upper half of ditto, two.masses seem protruding from 
the anterior cells 
3. Cellular mass, the cellular divisions very distinct, the 
summit is a single cell. The cells are sometimes 
of a fine bluish tint, like that of a solution of 
‘quinine in diluted sulphurie acid and water, the 
mass is still obscured often by adhering grumous 
tissue, which forms the superficies of the mass. 
4. Anther mass, divisions still indistinct, but appreciable. 
From this and.3, I should say, that the nuclei of 
this stage did not " part of the original homo- 
geneous mass 
5. Anther mass, cellulari much more evident, each 
division containing a grumous nucleus. 
6. Cellularity still more distinct: as: well as the nuclei 
which now appear more condensed. 
. Represents an entire mass: a single cell is seen to be ` 
interposed here and there; elsewhere 2 or 3 rows 
perhaps exist, the nuclei of the base, i. e. corres- | 
ponding to the base of anther ? are much the most 
developed. | 
Upper half of another mass. 
con of anther, in which micéller division hie taken 
al 
$ Go 
plac 
-16 One is the’ cellular divisions, its ian divided into : 
4 nucelles. 
Series E.—Mass more developed, inel in grume, 
all cells quaternarily divided, 1. 
Series F.— Process scarcely half up the anther. 
The mass still possesses some cohesion; it appears a gru- . 
mous body in which the cells lie imbedded in one and the 
same mass ; these are to be seen in their former state, and in 
Q 
e 
