238 



THAXTER. MONOGRAPH OF THE LABOULBENIACE^E. 



51. 



52. 



53. 

 54. 



55. 



56. 



57. 



58. 



59. 

 60. 



61. 



62. 

 63. 



64. 



65. 



66. 



67. 



68. 



69. 



Receptacle appearing to be distally multicellular through proliferation, 

 the resultant cells more or less copiously appendiculate. 



A primary appendage of superposed cells bearing specialized antheri- 

 dial branchlets superposed externally, similar branches arising 

 from cells on one side, about the bases of the perithecial stalk- 

 cells. 



No primary appendage distinguishable at maturity. 



Receptacle obconical, the proliferous cells producing distally a dense 

 tuft of appendages enveloping the bases of the perithecial stalk- 

 cells. 



Sterile branches few, antheridial cells intercalary in continuous 

 series. 



Sterile branches and branchlets copious, antheridial cells free, ex- 

 ternally superposed in irregular series on the lower segments of the 

 appendages and associated with beak-like sterile cells. 



Receptacle subtriangular, flattened, with paired, two-celled rounded 

 outgrowths and paired perithecia, proliferating cells above their 

 bases producing numerous branched appendages. 



Receptacle consisting of two superposed cells, the upper giving rise 

 directly to a more or less well distinguished free main appendage 

 and to one or more free, stalked perithecia. 



Antheridial branches producing serial intercalary antheridia. 



Primary appendage hyaline producing branches from its basal cell, 

 secondary perithecia originating like the primary. 



Primary appendage more or less blackened, its basal cell producing 

 secondary perithecia when these occur. 



Antheridia borne free, singly, or in groups, on the appendage, or on its 

 branches. 



Main axis of the appendage consisting of two superposed cells, the 

 upper bearing a series of branches from the bases of which arise 

 branchlets bearing the antheridia singly or in groups. 



Appendage consisting of several superposed cells, the distal bearing 

 sterile branches, the basal often perithecia, the rest short antheridial 

 branchlets from their upper inner angles. 



Appendage of numerous superposed cells, the basal free sterile and 

 specially modified, the rest bearing a series of branches superposed 

 externally, the basal cells of which give rise to antheridia singly or 

 in groups. 



Appendage of superposed cells, the basal adnate, sterile unmodified, 

 the rest appendiculate on the inner side, the branchlets bearing 

 antheridia more or less irregularly. 



Appendage two-celled, the distal cell a blackened insertion-cell bearing 

 sterile and antheridial branchlets. 



Receptacle multicellular, the cells subbiseriate above the subbasal cell, 

 the one series terminated by the perithecium, the other by the ap- 

 pendages. 



Receptacle producing one or more free secondary perithecigerous 



axes. 



Idiomyceteae 



Idiomyces 



Teratomyceteae 



Sympledromyces 



Teratomyces 

 Diplomyces 



Corethromyceteae 



Rhadinomyces 

 Corethromyces 

 Laboulbenieae 



Eucorethromyces 



SticJwmyces 



Rhizomyces 



Sphaleromyces 

 Ceraiomyces 



Laboulbenia 



58 

 53 



57 



56 



57 



68 



61 



64 



65 



66 



67 



