140 BOTANICAL GAZETTE 
[Fepavu 
the spindle was fully formed. The same phenomenon was described bye 
fessor Coulter” after Mottier’s article was written, but before it had re 
the Chicago laboratory. 
The third division is like the second rather than the first. The love 
antipodal spindle is often abnormal, but the division is not considered ait 
tic as described by Miss Sargant. The polar nuclei, unlike the synegt 
and the egg, are not surrounded by a ‘‘Hautschicht,” that of the egg ape 
ratus being formed from the connecting fibers. At the time of fusion bi 
the sex nuclei are in the resting stage. The membrane between the 
disappears, and after the fusion it is impossible to distinguish the male 
3 
Cc i 
being the same in both. In both there is a longitudinal fission of the 
thread. In the heterotypic there is often a synapsis due to reagents. 
chromosome. segments form rings or ellipses, or lie over each — 
they are arranged in the nuclear plate; and in separating, the \ 
chromosomes have the spindle fibers attached at the apex, while in 
tative form the spindle fibers are attached at or near the end of the 
some. 
Mottier finds that while a reduction in the number of chromosomes 
place in the primary embryo sac nucleus, there is no so-call 
division. This does not agree with his work on pollen mother cells, 
will consequently reinvestigate that subject.—C. J, C. 
7 Bot. Gaz. 23: 416. Pl. 94, fies, 10; T2. 1807. 
