x CONTENTS 



SUB-CLASS II. 



PAGE 



CHLOROPHYCE.E 120 



CAULERPACE.E 121 



VAUCHERIACE.E 127 



CODIACE^E 132 



UDOTEACE^E 137 



DASYCLADACE^S 145 



Acetabularieai . . 145 



Dasycladeai 151 



VALONIACE^E 156 



CLADOPHORACEJE 165 



ULOTRICHACE.E 170 



ULVACE^S , . 174 



PROTOCOCCACE^J 177 



PLEUROCOCCACE^EJ 179 



PERIDINIE^E 181 



COCCOSPHERES AND RlIABDOSPHERES 185 



SUB-CLASS III. 



DIATOMACE.E 188 



SUB-CLASS IV. 



RHODOPHYCE.E OR FLORIDE^: 200 



NEMALIONACEJE 207 



Helminlhodadiete 207 



Chtetangiece 210 



Gelidiea 214 



GlGARTINACE^K 216 



RHODYMENIACL^E 222 



Sphwrococcew 223 



Rhodymenieai 224 



