65 



Fig. 96. Heidium iridis, (ll), cells 60-lOOu long, 23-2tu wide. 

 X 1000. 



■valve view 

 var. firma 



Hotes: 



Notes on other species of NEIDIUM 



28b Longitudinal "eliadW-lines or blank spaces scattered, central 

 pores of raphe near central nodule turned if at all in the 

 sane direction - AN0M0E0NEIS 



