582 THE FUR SEALS OF THE PKIBILOF ISLANDS. 



Lecanora saxicola, Scbaer. 



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

 referred here by Mr. Branth. 



Pertusaria Sp. (?). 



On rocks, St. George Island. 



Pertusaria panygra (Acli.) Th. Vr. 



On rocks, St. Panl Island. iS^yorae solitarine ICO to 190 mil:, long.^ 30 to GO mil;, lat. 

 {Frustulum alterum, ita alternm alia crtista.) Thallus e Icalio/ere immutatus. 



Stereocaulon coralloides, Fr. 



On rocks, St. Paul Island. 

 Pilophorus robustus, Tuck. 



Under overhanging rocks, St. Paul Island. 



Cladonia alcicornis, Floerk. 



Under damp overhanging rocks, St. Paul Island. 

 Cladonia decorticata, Floerk. 



On earth and rocks, St. Paul Island. 



Cladonia pyxidata, (L. ). Fr. 



On earth on both islands. 

 Cladonia degenerans, Tuck. 



On earth, St. Paul Island. 



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



liare on St. Paul Island. The form macroeeras, Tuck., is still rarer. 



Cladonia furcata, Huds. var. racemosa, Fl. 

 On earth on both islands. 



Cladonia furcata, Huds. var. siibiilata, Fl. 

 On earth on both islands. 



Cladonia rangiferina, Iloffm. 



Common on earth on both ishmds. 



Cladonia rangiferina, Hoftm. var. sylvatica, L. 



Oil earth, St. (leorge Island. 

 Cladonia rangiferina, Hotiui. var. alpestris, L. 



Common on earth on both islands. 



Cladonia uncinalis, Fr. var. turgescens, Fr. 



On earth, St. Paul Island. 

 Cladonia cornucopioides, (L.), Fr. 



Common on earth on both islands. 



Cladonia bellidiflora, (Ach.), Scliaer. 



Common on earth on both islands. 



Sphaerophorum globiferum, DC. 



On rocks on both islands. McduUn I. coerulescit. 



Sphaerophorum fragile, I'ers. 



On rocks, mixed with Lecanora tartarea. 



