216 



PROCEEDINGS OF THE ACADEMY OF 



[1893. 



The profusion of Lichens strikes the visitor to Greenland at once 

 on reaching its shores. Many species seem to have preferences 

 for peculiar situations, and give the rocks when at some distance the 

 appearance of being variously colored. 



*Cetraria nivalis (L.) Ach. 

 fCetraria Islandica. 



Cetraria cucullata (Bill.) Ach. 



*Alectoria ochroleuca Nyl. 

 var. rigida Fr. 



Theloschistes lychneus Nyl. 



Parmelia saxatilis (L.) Fr. 



McCormick Bay. 

 Parmelia conspersa (L.) Wallr. 



McCormick Bay. 

 Parmelia lanata (L.) Wallr. 



McCormick Bay. 

 Parmelia incana (Pers.) Fr. 



McCormick Bay. 

 Physcia pulverulenta Schreb. 



McCormick Bay. 

 Umbilicariaproboscidea (L.) Stin. 



McCormick Bay. 

 Umbilicaria rugifera Nyl. 



McCormick Bay. 

 *Umbilicaria hyperborea Hoff. 



McCormick Bay. 

 Umbilicaria anthracoria Wulf. 



McCormick Bay. 

 Nephroma arotica (L.) Fr. 



McCormick Bay. 

 tPeltigera canina (L.) Hoffm. 

 fPeltigera apb.tb.osa L. 

 Solomia saocata (L.) Ach. 



Solomia crocea (L.) Ach. 

 |Pannaria hypnorum (Hoff.) Kolb. 

 Collema melaenum Ach. 



McCormick Bay. 

 Placodium vitellinum Ehrh. 



McCormick Bay. 

 Placodium elegans Link. 



McCormick Bay. 

 Lecanora lentigera (Webb.) Ach. 



McCormick Bay. 



Lecanora ventosa (L.) Ach. 

 Rinodina sophodes (Ach.) Nyl. 

 Pertasaria coriacea (Th.) Fr. 

 fPertusaria paradoxa Lindb. 

 Gyalecta peziza Mont. 

 fStereocaulon alpinum Lam. 

 Cladonia pyxidata (L.) Fr. 

 Cladonia gracilis (L.) Nyl. 



var. elongata, forma macroceris Tuck. 

 Cladonia deformis (L.) Hoff. 

 Lecidia platycarpa Ach. 



McCormick Bay. 

 Buellia geographica (L.) Tuck. 



McCormick Bay. 

 Sphaerophorus globiferus (L.) D. C. 



McCormick Bay. 



Coniocybe furfuracea L. 

 Verrucaria pygmaea Koelt. 



Parasitic on Cladonia gracilis. 

 Thamnolia vermicularis (Sw.) Ach. 



