PLANTS OF IOWA 87 



1051. 8. nitida, Link. 



In pond among lily pads. 



1052. 8. jugalis, Kuetz. 

 Floating in pond. 



1053. 8. setiformis, Kuetz. 

 Pond. 



1054. 8. majuscula, Kuetz. 



1055. 8. maxima, Wittr. 



In streams and ponds. 



1056. 8. crassa, Kuetz. 



1057. 8. intermedia, Rabenh. 



1058. E. adnata, Kuetz. 



1059. 8. fluviatilis, Kilse. 



1060. 8. tenissima, Kuetz. 

 Slough, amid Utricularia. 



1061. 8. inflata, Rabenli. 



1062. 8. webera, Kuetz. 

 In quiet water. 



1063. 8. laca, Kuetz. 







1064. 8. grevilleana, Kuetz. 

 Floating in pond. 



1065. 8. quadrata, Petit. 



1066. 8. insignis, Kuetz. 



1067. 8. calospora, Cleve. (8. protecta.) 

 Pond. 



PALMELLACE.E FAMILY. 



PALMELLA, Lyngb. 



1068. P. mucosa, Kuetz. 

 In slow stream. 



RHAPHIDIUM, Kg. (Ankistrodesmus.) 



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



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

 Horse trough, slough. 



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

 In standing water. 



