PLATE XL VI. 



Fig. I. Myrioticma scrangulans Grc\.] tufts natural size. 

 -• ■' " " section (X 400). 



3. Homeostroma tuidulatum J. Ag. 



4. Dermocarpa fucicola %-^. ViO\.\ section (X 400). 

 5- " " " natural size. 

 6«. Homeostroma lobatum sp. nov. ; natural size. 



^*^- " " " portion of edge (X 30). 



6<^- " " " section (X 400). 



(454) 



