DESCRIPTIONS OF THE PLATES. 



399 



DESCRIPTION OF PLATE II. 



Teratomyces mirificus Thaxter. 



Fig. 1. Young individual. A young perithecium in the centre bears terminally a highly developed 

 branching trichogyne. D 2. 



Laboulbenia cristata Thaxter. 



Fig. 2. Young perithecium with antheridia above at the right. The darker axile cell the 

 carpogonium, above it the trichophoric cell terminated by the trichogyne, on which are several 

 antherozoids. Leitz oil ^ 4. 



Fig. 3. Young individual with much more highly developed trichogyne, many of the cells 

 of which are distinctly nucleated. The cells of the dark rigid appendages at the left also 

 nucleated. D 2. 



Rhadinomyces pallidus Thaxter. 

 Fig. 4. Young individual with simple trichogyne, on which are numerous antherozoids. D 4. 



Laboulbenia elongata Thaxter. 



Fig. 5. Young individual with well-developed trichogyne, the tips of which are spirally twisted. 

 A fertile branch bearing numerous antheridia projects across the basal cell of the trichogyne. D 2. 



jRhachomyces lasiophorus Thaxter. 



Fig. 6. Young perithecium with branched trichogyne ; at its base several young sterile appendages, 

 and at the left an antheridium. D 4. 



Laboulbenia elongata Thaxter. 



Fig. 7. Abnormal form on which no perithecium has developed, but in its place the usual 

 blackened insertion-cell bearing sterile and fertile appendages, the latter with great numbers of 

 antheridia. D 2. 



Fig. 8. Abnormal form in which the perithecium at the right has not developed, the cells at its 

 base having sent out branches on which are numerous antheridia. D 2. 



Laboulbenia paupercula Thaxter. 



Fig. 9. Abnormal form in which the ascogenic cells 'have not developed, while the cells at the 

 base of the perithecium have sent up within it sterile branches, the tips of which project through 

 the terminal pore. D 2. 



Laboulbenia parvula Thaxter. 



Fig. 10. Specimen in which the perithecium has been broken off while the cells at its base 

 have sent up within it numerous sterile branches. D 2. 



