98 STATE HORTICULTURAL SOCIETY 



1217. P. ccBsia, (Hoffm.) Nyl. 

 Stones and trees. 



1218. P. obscura, (Ehrh.) Nyl. 

 Trees and rocks. 



1219. P. adglutinata, (Floerk.) Nyl. 

 Trees. 



1220. P. aster aides, (Fr.) Nyl. 

 On trees. Infrequent. 



PYXINE, Fr. Tuck. 



1221. P. sorediata, Ff . 

 Rocks and trees. 



PELTIGEREI FAMILY. 



STICTA, (Schreb.) Fr. 



1222. 8. pulmonaria, (L.) Ach. 

 Trees. A northern species. 



PELTIGERA, (Willd., Hoffm.) Fee. 



1223. P. horizontalis, (L.) Hoffm. 



1224. P. polydactyla, (Neck.) Hoffm. 

 Earth along shady hillsides. 



1225. P. pulverulenta, (Tayl.) Nyl. 

 Earth along shady hillsides. 



1226. P. rufescens, (Neck.) Hoffm. 

 Earth along shady hillsides. 



1227. P. canina, (L.) Hoffm. 

 Earth. 



1228. P. canina, (L.) Hoffm., var. spuria, Ach. 

 Clay banks. 



1229. P. canina, (L.) Hoffm., var. sorediata, Schaer. 

 Earth in moist shady places. 



PANNARIEI FAMILY. 



HEPPIA, Naeg. 



1230. H. despreauxii, (Mont.) Tuck. 

 Calcareous earth. 



