c. 
I 
never divides further. The basal cell is an elongated eee “4 
the sporeling, predetermined in its unicellular stage. Some 
sporelings up to the 7-celled stage are shown in fig. 1 Pie ae 
The sporelings in the cultures, after the ro or = a A al 
continue to develop in one direction. The cultures wer eae 
and examined carefully every 5 days up to 30 days, se see 
was still in the filamentous condition (fig. 18, a). The me 
with a holdfast at the base is unicellular, except near the = 

Fis. 14.— 
Female Sametangia in 6 tie 
phase and so 
ts of cells: a, b, c, a nucleus in each in pro- 
me in anaphase viewed from 
the pole, showing 22 chromosomes. 
€ upward direction, but produces 
laterally at its base a number of filaments one after another and side 
by side, which fuse SO as to fo 
expanded upward 
pon the expanded upper 
I parts of these filaments 
produced in the cultures 
cup, the termina 
The Structure thus 





