CONTENTS 



CHAPTER IV 



PAGB 



THE FUNGI t , .216 



Type XVIII 



PYTHIUM BARYANUM . . . , . .218 



1. Structure . , , . , .219 



2. Reproduction 



a. Asexual . , 4 , , . 221 



b. Sexual ..,,.. 224 



Type XIX 



PlLOBOLTJS CRYSTALLIXUS ...,,, 228 



1. Structure . . , . .229 



2. Reproduction 



a. Asexual , . . , 230 



b. Sexual . , . . , .233 



Type XX 



SPILEEOTHECA CASTAGXEI 



1. Structure , . , , 235 



2. Reproduction . . , , , . 237 



Type XXI 



PHYSCIA PAIIIETINA ...... 240 



1. Structure and Mode of Life . , . .241 



2. Reproduction ...... 247 



Type XXII 



PUCCINIA GF, AMIS IS ...... 253 



Type XXIII 



THE MUSHROOM (Agaricus campestris) . 266 



