190] CELL AND NUCLEAR DIVISION IN FULIGO VARIANS 233 
such figures, I am quite certain that the number of chromosomes 
is twelve. 
All stages of the separation of the daughter chromosomes 
and their migration to the poles of the spindle can be found in 
the greatest abundance (igs. 6, 8, 72-15). The spindle becomes 
slightly elongated during this process. Connecting fibers are © 
present and form a figure closely resembling that in the corres- 
ponding stages in the lily or larch. As the chromosomes first 
separate, relatively large gaps are seen between the connecting 
fibers, which appear bunched together in a few large strands (fig. 
13). The whole connecting spindle is markedly barrel-shaped 
at this stage. As the chromosomes approach the poles, the 
Te fibers become more evenly distributed, and are 
straightened so as to form a cylindrical series extending between 
the groups of daughter chromosomes (fg. 74). A marked 
Pi e between the nuclear divisions in Fuligo and those in 
ic rh I have studied is seen in the arrangement of the 
i e se chromosomes as they are drawn back. to the poles. 
Re asci these chromosomes are widely scattered on the 
while a this Stage, some having nearly reached, the poles, 
lit os ae are much nearer the equatorial region. This con- 
chicas, €s this stage the most favorable for counting the 
tena of the nuclei in the ascus. In Fuligo, on the 
toward the all the daughter chromosomes retreat simultaneously 
inte de, * as is seen in figs. 6, 13, 14. They also become 
Somes are “a ond together, so that the individual chrome: 
a8 in the ¢ Ae easily distinguished in polar views at this stage 
i quatorial plate stage. ; 
Te is etter chromosomes reach the poles, the whole 
(fig. 7 oe elongated, the connecting fibers being drewn 
appears, ag a a long slender strand, which gradually dis- 
the groy Poles of the spindle can be distinguished beyond 
9 15), 
Out 
id of daughter chromosomes till a very late stage (/igs- 
The n ” 
Tather ucleole of the parent nucleus in Fuligo disappears ata 
Car . . 
Y Stage as compared with other fungus nuclei. It 1s 
