IOWA ACADEMY OF SCIENCES. 
143 
Placodium cerinum (Ehrh.) Naeg. and Hepp. var. ul- 
morum Fink in herb. var. nov. 
On elms, rare. 
Placodium vitellinum (Ehrh.) Naeg. and Hepp. Spor. der 
Flecht. Eur. 1853. 
On sandstone, common. 
Placodium vitellinum (Ehrh.) Naeg. and Hepp. var. 
aurellum (Hoffm.) Tuck. Syn. North Amer. Lich. 1:180. 
1882. 
On trees, infreqent. 
Lecanora muralis (Schreb.) Schaer. Lich. Helv. Enum. 
66. 1822. 
On sandstone, rare. 
Lecanora subfusca (L.) Ach. Lich. Univ. 393. 1810. 
On trees, infrequent. 
Lecanora subfusca (L.) Ach. var. argentata Ach. Lich. 
Univ. 393. 1810. 
On trees, common. 
Lecanora varia (Ehrh.) Ach. Lich. Univ. 377. 1810, 
On cedar, frequent. 
Acarospora (Leeanora)cervina (Pres.) Kbr. var. oligocarpa 
(Nyl.) Fink. 
On sandstone, rare. Lecanora fuscata (Schrad.) Th. 
Fr. of the former reports. (Spores 14-16 in ascus. 
New to Iowa. 
Kinodina sophodes (Ach.) Kbr. Syst. Lich. 122. 1855. 
On trees, rare. 
Kinodina sophodes (Ach.) Kbr. var. exigua (Ach.) Tuck. 
Syn. North Amer. Lich. 1:208. 1882. 
On wood, rare (Hypothecium frequently becoming 
dark). 
Pertusaria velata (Turn.) Nyl. Lich. Scand. 179. 1861. 
On trees, rare. 
Pertusaria multipuncta (Turn.) Nyl. Lich. Scand. 179. 
1861. 
On trees, rare. 
