xii CONTENTS 



B. THE MOSSES 

 Type VIII 



PAGE 

 FUNARIA HYGEOMETEICA ...... 126 



1. The Leafy Stem 



a. Structure . . . . . .128 



b. Apical Development . . . .132 



2. The Sexual Organs ..... 132 



3. The Sporogonium or Fruit . . 137 



4. Germination of the Spores .... 142 

 Summary ....... 144 



CHAPTER III 



THE ALG^E . . .146 



A. THE CHLOROPHYCEJS 



Type IX 



(EDOGONIUM 



1. Structure ..... 147 



2. Reproduction 



a. Asexual .... . . 150 



b. Sexual . . . . . .152 



Type X 



ULOTHRIX ZONATA 



1. Structure . . . . , .159 



2. Reproduction . . . . , .160 



Type XI 



SPIEOGYEA 



1. Structure . . . . . .168 



2. Reproduction . . . . . .170 



