So NATURAL HISTORY BULLETIN. 



L. SUBFUSCA (/-.) Ac/i., var. coilocarpa Ach. Trees. 

 Fayette. 



L. HAGENi Ac/i. Calcareous rocks. Fayette, Johnson, Linn. 



L. VARiA {^Ehrh.^ IVyl. Trees and dead wood. Fayette, 

 Clayton, Bremer, Johnson. 



L. VARIA iyEhrh.') JVyL, var. s^pincola Fi\ Dead wood. 

 Fayette, Floyd. 



L. ERYSiBE JVyL Calcareous rocks. Fa3'ette. Apparently 

 rare. Specimens agree with the European forms. The 

 same has been collected in Illinois by W. W. Calkins. If 

 elsewhere in North America, I do not know of it. 



L. PUNiCEA (ylr//.) Trees. Story. This is a southern 

 lichen, and doubtless extremely rare in Iowa. 



L. ciNEREA i^L.) Somnicrf., va?-. gibbosa Ay I. Granitic 

 rocks. Fayette, Bremer. 



L. CALCAREA [L.") Somiucvf. Calcareous rocks. Fayette. 

 Like that in the Tuckerman herbarium, collected in Kan- 

 sas by Hall; but the spores are rather small, and the speci- 

 mens differ otherwise from the usual form of the species. 



L. CALCAREA (^.) SomnicrJ'., var. contorta Er. Cal- 

 careous rocks. Fayette. Like that from Texas in the 

 Tuckerman herbarium, collected b}- Wright. 



L. CERViNA [Pers.'\ JTyl. Calcareous rocks. Fa3'ette. 



L. PRiviGNA [Ach.) JVyl. Calcareous rocks Fayette, Bre- 

 mer, Clayton. 



L. PRIVIGNA (Ac/i.) Ay/., var. pruinosa Ai/cL Calcareous 

 rocks. Johnson. 



R I N O D I N A (A/ass., Stizcnb. ) Tuck. 



R. oREiNA {Ach.) Mass. Granitic rocks. Fayette, Bremer^ 

 Johnson. 



