CRYPTOGAMS 



VOLVOX MINOR 



PLATE X. 



Fig. 3. Exospommi ruptured 



Fig.l. Oosphere with fertilizing Amherowiis 



Fig. 2 Ripe Oospore 



Exosjiorixan 



Excsporium 



.Arakeroxoids 



Fig. 4 Contents of Oospore divided into two 



Fig. 5. Division of same into four 



LIFE HISTORr DIAGRAM 



Gonidia. ( usually 6 ) 



' Jteproduc&cm. 



3 2\ 



-^Anthaidia withJntheroxoid 



Oogorda. with, Oospheres 



Fig. 6. Division into sixteen masses 



Endosporium, 



Fig. 7. Young Volvox 



"SnfJraved. Printed and Pabusned "by TV k AX. Johnston, Edinbnr^i & London. 



