52 



ASCOMYCETES 



[ch. 



trichogyne o, 



oogonium i cell, 



never septate, 



antheridium attached. 



trichogyne o, 



oogonium i cell, 



septate after fert., 



antheridium attached. 



trichogyne i cell, 



oogonium i cell, 



septate after fert. , 



antheridium attached. 



trichogyne I cell, 



oogonium i cell, 



never septate, 



antheridium attached, 

 large. 



PLECTOMYCETES 



SACCHAROMVCETACEAE 



ENDOMVCETACEAE 



I 



Sphaerothtca 

 ERYSIPHACEAE 



(.VMXOASCACEAE 



en 



W 

 H 

 W 



u 



ASPERGILLACEAE 



L< i\\ I R PYRENO- 

 MYCETES 



A nodes mis 

 I 



Pyronana 



PEZIZACEAE 



CO 



w 



w 

 u 



incomplete develop- 

 ment of septate 

 type with antheri- 

 dium set free. 



> 



r". 



O 

 2C 



— 



LABOULBEN 



IALES 



Lachttea stercorea 



I 

 Lachnea cretea Rhizina 



I ! 



ASCOBOLACEAE 



o 

 u 



CO 



Collema pulposum 



complete development 

 of septate type 

 with antheridium 

 set free. 



LICI EXES 

 PYRENOMYCETES 



The dotted lines indicate possible and the continuous lines rather more probable relationships. 



