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METR0P0LITAX PARK FLORA. 



P. obscura (Ehrh.), Nyl. 



On trees; common. M* and BB*. 

 Var. endochrysea, Nyl. 



On trees ; rare. BB*. 



UMBILICARIA, Hoffm. 

 U. Dillenii, Tuck. 



On rocks ; common. M * and BB*. 

 U. pustulata (L.), Hoffm., var. papulosa, Tuck. 



On rocks ; common. B*, M* and BB*. 



STICTA, Schreb. 

 S. pulmonaria (L.), Ach. 



On trees ; common. B *, Great^Blue Hill : — M*. 



PELTIGERA, Willd. 

 P. horizontalis (L.), Hoffm. 



On earth. M*. 

 P. rufescens (Neck.), Hoffm. 



On earth. M*. 

 P. canina (L.), Hoffm. 



On earth. M *. 



LECANORA, Ach. 



L. varia (Ehrh.), Nyl. 

 On trees. BB*. 



RINODINA, Mass. 

 R. oreina (Ach.), Mass. 

 On rocks. BB*. 



PERTUSARIA, DC. 

 P. tnultipuncta (Turn.), Nyl. 

 On trees. BB*. 



STEREOCAULON, Schreb. 

 S. paschale (L.), Fries. 



On rock. M *, rather a small form. 



