x ILLUSTRATIONS 



PLATE 



Ochrolechia pallescens (L.) Mass 31 



Icmadophila ericetorum (L.) Zahlbr 32 



Parmeliopsis aleurites (Ach.) Nyl 53 



Parmelia pertusa (Schrank.) Schaer 34 



Parmelia caperata (L.) Ach 35 



Cetraria juniperina pinastri (Scop.) Ach. and Cetraria lacunosa Ach. . 36 



Evernia prunastri (L.) Ach 37 



Alectoria jubata (L.) Ach 38 



Ramalina calicaris (L.) Rohling 39 



Ramalina reticulata (Noedh.) Kremph 40 



Teloschistes polycarpus (Ehrh.) Tuck, and Ramalina dilacerata 



(Hoffm.) Vainio 41 



Ramalina subamplicata (Nyl.) Fink and Usnea florida (L.) Web. . . 42 



Caloplaca cerina (Ehrh.) T. Fries and Caloplaca elegans (Link) T. Fries 43 



Teloschistes chrysophthalmus (L.) Beltr 44 



Buellia parasema (Ach.) De Not 45 



Pyxine sorediata (Ach.) E. Fries 46 



Physcia stellaris (L.) Nyl. and Anaptychia ciliaris (L.) Koerb. ... 47 



TEXT FIGURES 



PAGE 



Fig. 1. Algal types with associated fungal hyphae 1 



Fig. 2. Algal types with associated fungal hyphae 2 



Fig. 3. Cephalodia of Peltigera aphthosa 9 



Fig. 4. Cyphellae 10 



