190 



COMPENDIUM OF GENERAL BOTANY. 



Fig. 111. — Sexual organs of 



Vancheria sessilis . 



og, Oogonium ; a, antheridium. 

 (After Sachs.) 



Fig. 110. — Various stages in the conjugatioa 

 of Spirogyra longata. 

 (X 550.) (After Sachs.) 



Fig. 112. — A, Rupturing anther- 

 idium of Funarialiygrometrica 

 (moss); B, magnified spermalo- 

 zoid in the molhor-cell ; c, free 

 spermatozoid of Polytrichum. 

 (After Sachs.) 



