THAXTIOH. 



MONOGRAPH OF TH 10 LA BOULBJ0N F AC 10/10. 



23. Antheridial cells disposed in four opposite pairs. 



24. Antheridial cells numerous. 



25. Antheridium opening by a free pore. 



2G. Antheridial cells unassociated with evident sterile cells above the 

 stalk-cell of the appendage. 



27. Antheridium terminal, rounded, areolate, with lateral pore and termi- 



nal spine. 



28. Antheridium conical with prominent terminal pore. 



29. Antheridial cells associated with evident sterile cells above the stalk- 



cell of the appendage. 



30. Antheridial cells numerous, disposed in obliquely superposed rows, 



associated with an external sterile marginal cell, opening terminal. 



31. Antheridium opening by a lateral pore below a terminal cellular sterile 



portion. 



32. Antheridial cells few, opening into a chamber extending upward beside 



two external sterile cells to a terminal chamber and pore. 



33. Antheridium areolate, lateral below sterile terminal branches. 



34. Inccrtw seclis, ascogenic cells very numerous. (See 46.) 



35. Antheridia single cells with free efferent tubes. 



36. Individuals unisexual. 



37. Perithecia on secondary repent receptacles attached to the host. 



38. Perithecia arising from a primary receptacle. 



39. Receptacle two-celled, terminated by the perithecium, spores con- 



tinuous. 



40. Receptacle terminated by a two-celled prominence, spores once-sep- 



tate. 



41. Receptacle several-celled, chaetophorous. (Incertoe sedis.) 



42. Individuals hermaphrodite. Primary receptacle without secondary 



elongation through intercalary growth. 



43. Receptacle simple, or without free axes of secondary origin. 



44. Antheridial appendage a single, simple, specialized series of super- 



posed cells, unassociated with sterile branchlets or appendages. 



45. Subterminal cell of the appendage sterile, the cell below it bearing 



several antheridia, the terminal cell bearing a single spinose 

 antheridium. 



46. Appendage of several flattened irregularly superposed cells, surmounted 



by a dome-shaped structure, ascogenic cells very numerous. {In- 

 certae sedis, see 34.) 



47. Antheridial appendage of five cells, two superposed antheridia arising 



from the terminal and subterminal cells respectively. 



48. Distal, fertile, portion of the appendage consisting of two to many 



superposed cells which give rise to antheridia superposed in a single 

 or double series. 



49. Antheridia more or less distinctly whorled on the fertile terminal por- 



tion of the appendage. 



50. Antheridial appendages or branches more than one and associated 



with sterile branches or branchlets. 



Monoicomyces 



Bhmonoicamyceg 



Haplomyceteae 



Haplomycea 

 Camptomyccs 



Eucantharomyces 



Kleidiomyccs 



Eulwplomyc.es 

 Cantharomyces 

 Polyascomyces 



LaBOULBEN'I.YCEjE 



Herpomyceteae 



Ilcrpomyces 

 Amorphomyceteae 



A mo rp homy res 



Dioicomyces 

 Smeringomyces 



Stigmatomy cete 83 



Acompsomyces 



Polyascomyces 

 Acallomyces 



Stigmatomyces 

 Arthrorhynchus 



237 



24 



29 

 28 



31 



32 

 33 



42 

 38 



40 

 41 



75 

 69 



50 



46 



47 



48 



49 



