PLANTS OF IOWA 101 



1262. P. vitellinum, (Ehrh.) Naeg. and Hepp. 

 Dead wood and rocks. 



1263. P. vitellinum, (Ehrh.) Naeg. and Hepp., var. aurellum, 



Ach. 

 Calcareous rocks. 



1264. P. murorum, (Hoffm.) DC. 

 On rocks. 



LECANORA, (Adh.) Tuck. 



1265. L. rubina, (Vill.) Ach. 



Granitic rocks. 



1266. L. rubina, (Vill.) Ach., var. heteromorpha, Ach. 



Granitic rocks. 



1267. L. muralis, (Schreb.) Schaer., var. saxicola, Schaer. 



1268. L. muralis, (Schreb.) Schaer., var. versicolor, Fr. 



Granitic rocks. 



1269. L. pallida, (Schreb.) Schaer. 

 Trees. 



1270. L. pallida, (Schreb.) Schaer., var. cancriformis, Tuck. 

 On trees, rare. 



1271. L. subfusca, (L.) Ach. 

 Trees and rocks. 



1272. L. subfusca, (L.) Ach., var. allophana, Ach. 

 Trees. 



1273. L. subfusca, (L.) Ach., var. argentata, Ach. 

 Trees. 



1274. L. subsca, (L.) Ach., var. coilocarpa, Ach. 

 Trees. 



1275. L. fuscata, (Schrad.) Th. Fr., var. rufescens, Th. Fr. 

 On granitic rocks, frequent. 



1276. L. hageni, Ach. 

 Calcareous rocks. 



1277. L. varia, (Ehrh.) Nyl. 

 Trees and dead wood. 



1278. L. varia, (Ehrh.) Nyl., var scepincola, Fr. 

 Dead wood. 



