CONTENTS 



PREFACE 



MYXOPHYCE.E (or CYANOPHYCE^E) 

 PERIDINIE^E 



Gymnodiniaceee 



Pyrocystacese ....... 



Phytodiniaccac ....... 



Peridiniacete 



Prorocentracese . 



BACILLARIE/E 



CHLOROPHYCEiE . 



Isokontee 



Protococcales ..... 



Siphonales ...... 



Siphonocladiales ...... 



Ulvales 



Schizogoniales ...... 



Ulotrichalcs 

 Akontee ... 



Conjugates ....... 



Stephanokontae 



(Edogonialcs ....... 



Heterokontae 



Heterococcales 



Heterotrichales . . . 



Heterosiphonales . . ... 



THK OCCURRENCE AND DISTRIBUTION OF FRESHWATER 

 Subaerial Associations ... 

 Associations of Irrorated Rocks . 

 Aquatic Associations .... 



ADDENDA . . 



INDEX . 



PAGE 



vii 



1 



49 

 51 

 55 

 57 



58 



76 



83 



126 



156 

 160 



222 

 250 

 275 

 279 

 281 



328 



328 



385 

 385 



401 

 403 

 411 

 414 



418 

 419 

 422 

 423 

 452 

 455 



45351 



