Botany and Zoology. 145 
d, into polygonal, 
zoospores contained 
parent net falls to pieces, each articulation floating separately; and 
shortly afterwards, on the bursting or deliquescence of the wall of the 
Mmother-cell, the little network floats independently, and commences its 
career of growth and development.” , 
Here only the spores or germs are active; the developed plant vege- 
sic water, and their peculiar movements may be easily observed. These 
D 
allowed to remain for some hours at rest, its edges will. become finely - 
