186 IOWA ACADEMY OP SCIENCES. 



perfectly with the description, having spores 4 inasci, 4 celled, 

 brownish and 16-19 x 5-6 mic. 



Galicium parietinum Ach. On decorticated wood, especially 

 red cedar, probably frequent. Fayette. 



Calicium quercinum Pers. On oaks, rare. Fayette. 



Sphinctrina tigillaris B. and Br. On Polyporus versicolor L 

 Fr., rare. Fayette. Placed here because of close relation- 

 ship to the last two, though the algal cells probably are want- 

 ing in this. Perhaps better to place it in the above genus 

 under the synonym, Calicium polyjjorceum Nyl. 



Verruc-aria epigoea Pers., Ach. On clay, rare. Fayette. 



Pijrenula cinerella Fit., Willey. On prickly ash, frequent. 

 Fayette. 



Thelocarpon 'prasinellum Nyl. Old boards, frequent. Fay- 

 ette and Bremer counties. 



NOTES CONCERNING SOME SPECIES PREVIOUSLY REPORTED 



FOR IOWA. 



Evernia prunasiiri L., Ach. I have recently found this 

 species on old board fences at Fayette. Thus far it has not 

 occurred elsewhere in the state, though it is very common in 

 northern Minnesota and frequent as far south as Minneapolis. 

 Its southern limit is doubtless reached somewhere in Iowa. 



Pycine sorediata Fr. This lichen was only listed in the paper 

 on " Lichens of Iowa " from rocks. It has since been found in 

 fruit on trees at Fayette. It becomes more common in passing 

 north to the British jiossessions, and its distribution in other 

 parts of Iowa is especially worthy of study. 



Sticta pulmonaria Lt. , Ach. Only known thus far in Iowa 

 along the Mississippi river in Clayton county. How far this 

 northern lichen extends south along the river, or possibly in 

 other parts of Iowa, is of special interest. Like the last two, 

 I find it increasing in abundance as I go north. 



Fannaris languinosa (Ach.,) Koerb. I have recently collected 

 the sulphur colored form, common in Europe, on the Saint 

 Peter sandstone in Clayton county and in several localities in 

 Minnesota. 



Lecanora punicea Ach. Any further occurrence of this in 

 Iowa should be noted, because it is a southern lichen, and it 

 finds its most northern known limit in Iowa. 



