WEST VIRGINIA GEOLOGICAL SURVEY 155 



. COLLEMA Hoffm. 



C. MYOCHROUM, Nyl. 



On Rhododendron maximum, alt. 1,875 ft. (Nuttall, 1058; 



C. FLACCIDUM Ach. 



On a ledge (Sheldon, 3398). 



LEPTOGIUM Fr. 

 L. PULCHELLUM (Ach.) Nyl. 



On oak (Nuttall, 1067). 

 L. TREMELLOIDES (Linn, f.) Fr. 



On sandstone rock (Nuttall, 1093). 



L. CHLOROMELUM STELLANS Tuck. 



On Quercus coccinea, alt. 2,400 ft. (Nuttall, 1146). 

 LECANORACEAE. 



PLACODIUM DC. 



P. ELEGANS (Link.) D.C. 



On sandstone boulders at base of cliffs, alt. 1,800 ft. (Nutt- 

 all, 862). 

 P. CERINUM (Hedw.) Naeg. & Hepp. 



Monogalia Co., on bark of Beech, Falling Run (Mills- 

 paugh, 1357). On Robinia Pseudacacia, alt. 2,000 ft. (Nutt- 

 all, 1030). . 



P. FERRUGINEUM (Huds.) Hepp. 



On top of wet sandstone rock (Nuttall, 1092). 



P. -CAMPTIDIUM Tuck. 



On trees (Nuttall, 1786). 

 P. RUPESTRE (Scop.) Br. & Rostr. 



Fayette : near Quinnimont (Pollard & Maxon, 155). 



P. CINNABARINUM (Ach.) Aug. 



On rock (Sheldon, 2288). 



LECANORA Ach. 



L. COARCTATA Ach. 



On pieces of sandstone under drip of wet cliff, alt. 1,800 ft. 

 (Nuttall, 1780). 

 L, SUBFUSCA (Linn.) Ach. 



On trees and rocks (Nuttall, 1038). 

 L. ATRA (Huds.) Ach. 



Monongalia Co., on bark Liriodendron log, newly felled, 

 Falling Run (Millspaugh, 1342). On flat exposed surface 

 sandstone rock, same locality (1287). 

 L. DEPLANANS Nyl., Bot. Gaz.', 22:334, (1896). 



Thallus glauco-cinerascens tenuis areolato-rimosus deter- 

 minatus ; apothecia badio-rufescens (satis diluta) innata sub- 



