196 



THALLOPHYTA. 



[CH. 



Tig. 39. Nematophycus Logani (Daws.). A. Part of a transverse section from a 

 specimen in the British Museum. (Nat. size.) B. Transverse section from 

 specimens in Mr Barber's possession. C. Longitudinal section. (B and 

 Cxl60.) D. Transverse section showing a radial space. E. Transverse 

 section; a few 'cells' more highly magnified. D and E from a specimen 

 in the British Museum. 



