Plate 56 





'4V:^^ 



X 35 



,^:^jc>/!.(^ 



X 125 



X 500 



PERTUSARIA PERTUSA DaUa Torre and Sarnth. 



a. Plant on rock. b. Portion of plant, c. Vertical section of thallus. rf. Vertical 



section of thallus and apothecium. e. Ascus and paraphyses. / Spore. 



