582 THE FUR SEALS OF THE PKIBILOF ISLANDS. 



Lecanora saxicola, Schaer. 



Specimens which may prove to represent a new species have been provisionally 

 referred here by Mr. Branth. 



Fertusaria Sp. ( ?). 



On rocks, St. George Island. 

 Fertusaria panygra (Ach.) Th. Fr. 



On rocks, St. Paul Island. Sporae solitariae 160 to 190 mile, long., 30 to 60 mile. lat. 

 (Frustuluni alterum ita alterum alia erusta.) Thallus e halio fere immutatus. 



Stereocaulon coralloides, Fr. 



On rocks, St. Paul Island. 

 Filophorus robustus, Tuck. 



Under overhanging rocks, St. Paul Island. 

 Cladouia alcicornis, Floerk. 



Under damp overhanging rocks, St. Paul Island. 

 Cladonia decorticata, Floerk. 



On earth and rocks, St. Paul Island. 

 Cladonia pyzidata, (L.), Fr. 



On earth on both islands. 

 Cladonia degenerans, Tuck. 



On earth, St. Paul Island. 

 Cladonia gracilis. (L.), Nyl. var. elongata, Fr. 



Bare on St. Paul Island. The form macroceras, Tuck., is still rarer. 

 Cladonia furcata, Huds. var. raoemosa, Fl. 



On earth on both islands. 



Cladonia furcata, Huds. var. subulata, Fl. 

 On earth on both islands. 



Cladonia rangiferina, Hoffm. 



Common on earth on both islands. 



Cladonia rangiferina, Hoffm. var. sylvatica, L. 



On earth, St. George Island. 

 Cladonia rangiferina, Hoffm. var. alpestris, L. 



Common on earth on both islands. 

 Cladonia uncinalis, Fr. var. turgescens, Pr. 



On earth, St. Paul Island. 



Cladonia cornucopioides, (L.), Fr. 



Common on earth on both islands. 



Cladonia bellid^ilora, (Ach.), Schaer. 



Common on earth on both islands. 

 Sphaerophorum globiferum, DC. 



On rocks on both islands. Medulla I. coerulescit. 

 Sphaerophorum fragile, Pers. 



On rocks, mixed with Lecanctra tartarea. 



