PLANTS OF NORTH ELBA 187 



Pertusaria velata {Turn ) Nyl. 

 Trunks of trees, sometimes on rocks. Very common. 



Pertusaria leioplaca {^Ach.) Schaer. 

 Trees and rocks. Vicinity of Lake Placid. Atkinson. 



Conotrema urceolatum {Ach) Tuckm. 

 Trunks of trees. Occasional. Freemans Home. 



Gyalecta lutea {Dicks.) Tuckm. 

 Bark of yellow birch. Wood farm. 



Gyalecta Pineti {Schrad.) Tuckm. 

 Bark of trees. Vicinity of Lake Placid. Atkinson. 



CLADONIACEAE 



Stereocaulon tomentosum {Fr.) Th. Fr. 



Ground among young spruces. H. Brown farm. The stout terete 

 tomentose podetia or stems somewhat naked on one side and the small 

 lateral apothecia are features of this species. 



Stereocaulon paschale (X.) Fr. 

 Rocks and heathy ground. Common. 



Pilophorus cereolus Fibula Tuckm. 

 Rocks. Rare. Near the Notch house and in Indian pass. 



Cladonia pyxidata (Z.) Fr. 

 Heathy places and base of trees. Common. 



Cladonia fimbriata tubaeformis Fr. 



Ground and decaying wood. Valley of the Ausable. 



Cladonia gracilis (Z.) Nyl. 

 Ground and decaying wood. Common and variable. 



C. gracilis verticillata Fr. 

 A variety easily recognized by the proliferous cups of the podetia 

 placed one above the other. 



C. gracilis hybrida Schaer. 

 Vicinity of Lake Placid. Atkinson. 



