TIIAXT10R. — MONOGRAPH OF THE LABOULBENIACE^E. 239 



70. 



Primary axis displaced by a single simple more or less elongate multi- 









cellular chsetophorous secondary axis, hearing a subtcrminal peri- 



Rhachomyceteae 







thecium. 



Iihacliomiicr.s 



71 



71. 



Receptacle a biseriate-multicellular perithecigerous axis, producing 



Clematomyceteae 







laterally similar perithecigerous axes. 



( 'Irnifilomiirrs 



72 



72. 



Perithecigerous axes unicellular and (list ally appendiculate below 









(he perithecial stalk-cell. 



Compsomyceteae 





73. 



Individuals solitary with suhvertieillatc fertile and sterile branches 









from a primary two-celled receptacle. 



Compnomyrcs 



74 



74. 



Individuals in a dense tuft, with a common intrusive cellular hausto- 









rium. 



Mo.schomiircH 





75. 



Receptacle indeterminate or elongating by secondary cell-division. 







70. 



Primary appendage a well defined axis of superposed cells (see also 84). 



%l 11 O 1 1 \ ' 





79 



77. 



Receptacle and primary appendage forming a bristle-like coincident 









axis of superposed cells, bearing branches, perithecia and further 



Chaetomyceteae 







branches in a unilateral series and in the order mentioned. 



Cha'tomyces 



78 



78. 



Receptacle very variable through secondary growth, producing no 



Ecteinomycefeeae 







branches below the perithecium. 



Ecteinomyces 





79. 



Primary appendage a rounded cellular prominence beside the perithe- 



Misgomyceteae 







cium, with evanescent terminal branchlets (inccrtw sedis). 



Misgomyces 





80. 



Antheridia more or less undifferentiated cells of the appendages or of 









their branches. Mostly aquatic. 



CERATOMYCETINE/E 



81. 



Receptacle not a massive multicellular structure. 





90 



82. 



Receptacle bearing no appendages below the perithecium. 



Ceratomyceteae 



89 



83. 



Receptacle indeterminate. 





80 



84. 



Perithecium determinate, the wall-rows few-celled. 



Hydroph ilomyccs 



85 



85. 



Perithecium indeterminate, the wall-rows many-celled. 



Rh ynchophoromyrcs 





80. 



Receptacle determinate. 







87. 



Perithecium determinate, wall-rows few-celled. 



Autoicomyces 



88 



88. 



Perithecium indeterminate, wall-rows many-celled. 



Ceratomyces 





89. 



Receptacle bearing appendages from specially differentiated cells 



IT OllO !»/ 



Coreomyceteae 







below the perithecium. 



Coreomyces 





90. 



Receptacle a massive multicellular structure. 



Zodiomyceteae 





91. 



Receptacle distally cup-shaped, a ciliate margin surrounding numer- 









ous perithecia. 



Zodiomyces 



92 



92. 



Receptacle a massive axis continuous with a terminal appendiculate 









primary appendage and bearing numerous perithecia and append- 









ages in a crowded lateral series. 



Euzodiomyces 



93 



93. 



Receptacle a massive axis continuous with a terminal appendiculate 









primary appendage, consisting of numerous superposed tiers, the 









upper of which grow out laterally on either side to form peritheciger- 









ous branches of numerous superposed cells. 



Kainomyces 





