STATE HOBTICULTUBAL SOCIETY 



1072. R. polymorplium, Fresen. - 

 Common in stagnant water. 



1073. R. polymorphum, var. aciculare, (A. Br.) Rabenh. 

 In stagnant water. 



GLCEOCYSTIS, Naeg. 



1074. Or. gigas, (Kuetz.) Lagorh. 

 PORPHYRIDIUM, Naeg. 



1075. P. cruentum, (Ag.) Naeg. 

 On stone walls. 



TETRASPORA, Ag. 



1076. T. lubrica, Ag. 

 On wet stones. 



1077. T. gelatinosa, (Vauch.) Desv. 

 In springs and pools. 



PALMELLOCOCCUS. 



1078. P. miniatus, (Kuetz.) Chodat. 

 Under limestone arch, College 



TETR^EDON. 



1079. T. longispium, (Perty) Hausg. 

 Bed of creek below filter beds. 



CELETOPELTIDE.E FAMILY. 



CH^ETOSPH^ERIDIUM. 



1080. C. globosum, (Nordst.) Klenahn. 

 Pond. 



PEOTOCOCCACE^B FAMILY. 



SCENEDESMUS, Meyen. 



1081. 8. Ujugatus, (Turp.) Kuetz. 

 Slough, amid Utricularia. 



1082. 8. quadricauda, (Turp.) Breb. 

 Common. 



1083. 8. quadricauda, var. abundans. 

 Very common. 



1084. 8. obliquus, Kuetz. 



1085. 8. obliquus, var. dimorplius, Rabenh. 

 With plant from northern Iowa. 



