CXXXVl 



INDEX. 



DESMIDEiT,. 



Euastrum oblongum, Ixxxvii 

 verrucosum, Ixxxvii 



Micrasterias americana, Ixxxvii 



cruxmelitensis, Ixxxvii 

 denticulata, Ixxxvii 

 Jenneri, Ixxxvii 

 morsa, Ixxxvii 

 papillifera, Ixxxvii 

 rotata, Ixxxvii 

 truncata, Ixxxvii 



Penium digitus, Ixxiv 



interruptum, Ixxxvii 



Sph%rozosina cxcavatum, Ixxiv 



Desmide^. 

 Staurastram brachiatum, Ixxxvii 

 dejectum, Ixxiv 

 furcatum v. armigerum, 



Ixxxvii 

 hirsutum, Ixxiv 

 punctulatum, Ixxiv 

 sexcostatum. Ixxxvii 

 spinosum, Ixxxvii 

 spongiosum, Ixxiv 

 tumidum, Ixxxvii 



Tetmemorus Isevis, Ixxxvii 



Xanthidium armatum, Ixxxvii 

 cristatum, Ixxxvii 



i 



