185, 186 



d 



x600 





A 



/ *20 



C 



18'). a, b, PERICH.ENA MICROSPORA Penzig & Lister 

 c, d, ARCYRIA ANNULIFERA Lister & Torrend 



MP 6 



r ' * 280 





Vfl*^ 



186. PERICH^EXA CORTICALIS Rost. 



