PLANTS OF IOWA 87 



PALMELLACE^E FAMILY. 



Palmella, Lyngb. 



1068. P. mucosa, Kuetz. 

 In slow stream. 



Rhaphidium, Kg. (Ankistrodcsm us.) 



1069. F, falcatus, (Corda.) Ralfs. 



1070. B. falcatus, var. acicularis, (A. Br.) West 

 Horse trough, slough. 



1071. B. convolutus, (Rabenh.) West. 

 In standing water. 



