PLANTS OF IOWA 



1171. 0. longatum, Kuetz. 

 In stagnant water. 



COLEOCILETACEiE FAMILY. 



Coleoth^te, Breb. 



1172. C. soluta, Pringsh. 

 Not rare in ponds. 



1173. C. scutata, Breb. 



On aquatic plants, frequent. 



1174. C. orbicularis, Prinsh. 

 In aquarium. 



CHARACIE.E FAMILY. 

 ClIARACIUM, A. Br. 



1175. C. ncegelii, A. Br. 

 Ponds. 



LICHENS. 



USNEEI FAMILY. 



Ramalina Ach., De Not. 



1176. R. calicaris, (L.) Fr. 

 Trees. 



1177. R. calicaris, (L.) Fr. var. fraxinea, Fr. 

 Trees. 



1178. R. calicaris, (L.) Fr., var. fastigiata Fr. 

 Trees. 



1179. R. calcaris, (L.) Fr., var. farinacea, Schaer. 

 Sandstone. 



Cetraria, (Ach.) Fr. Mull. 



1180. C. ciliaris, (Ach.) 

 Dead wood. 



Evernia, Ach. Mann. 



1181. E. prunastri (L) Ach. 



Red Cedar and on old board fence. 



Usnea (Dill.) Ach 



1182. U. barbata (L.) Fr. 



Trees and sandstone, infrequent. 



N 



