TABLE OF CONTENTS. 



PAGE 



Advertisement iii 



Preface v 



Introduction 1 



Class Phycochromophyce^ 

 Order Cystiphor^ 



Family Chroococcace^ 



Order Nematogene^ . 

 Family Oscillariace^ 

 Family Nostochace^ 

 Family Rivulariace^ 

 Family Scytonemace^ 

 Family SirosiphonacejE 



Class Chlorophyllaoe^ 

 Order Coccophyce^ 

 Family Palmellace^ 

 Family ProtococlacejE 

 Family VolvocinejK 



PAGE 



9 

 10 

 10 



15 



16 

 23 

 43 

 55 

 6T 



77 

 78 

 78 

 85 

 98 



Order Zygophyce^ 

 Family Desmidiace^ 

 Family Zygnemace^ 



Order SiPHOPHYCEiii 

 Family HydrogastrejB 

 Family YatjcheriacejB 

 Family Ulvaceje 

 Family CoNFERVACEiE 

 Family (BdogoniacejB 

 Family C hroolepidEjE 

 Family ChjETOPhorace^ 



Class Rhodophycej9e 



Family PoRPHYRACEiE 



Family CHAWTRANSIACEiE . 



Family Batraohospermaoe^ 

 Family LemaneacejE 



100 

 100 

 159 



174 

 175 

 176 

 182 

 186 

 188 

 203 

 205 



213 

 214 



215 

 217 

 221 



Supplement . . . , 

 Geographical List of Species . 

 Bibliography . . . . 



Index 



Explanation of the Plates 



225 

 229 

 235 

 249 

 253 



(ix) 



