CHITONOMYCES AND RICKIA. 39 



debtetl. Six individuals have been examined, in only one of which is 

 the peritheciinn nearly mature, although no spores are visible. It is 

 probable that the dimensions of the peritheeium of more fully devel- 

 oped individuals will prove greater than those given above, and that 

 its erect, free finger-like tip may become more prominent with age. 

 The first appendiculate cell which is cut off, appears to bear an ap- 

 pendage; while all, or a great majority of those cut off beside it, which 

 lie in a subhorizontal series, bear antheridia. Owing to the fact that 

 the antheridia are thus crowded side by side, it is very difficult to 

 estimate the number developed in connection with a given marginal 

 cell, but there appear to be from four to six. The extremely oblique 

 septation of the base of the primary appendage, is much more striking 

 than in any of the several species where a slight oblic^uity is observable. 



Rickia pallida nov. sp. 



Hyaline, tapering symmetrically downward from the mid-region of 

 the peritheeium to the foot. Receptacle triseriate, the basal cell 

 rather small, subtriangular, not distinguished from and slightly if at 

 all intruded between the two cells above it: anterior series extending 

 to, or almost to, the base of the perithecial tip, consisting of usually 

 eighteen cells ; the upper ten usually in contact with the peritheeium, 

 the distal ones smaller, those below the peritheeium subequal, irregu- 

 larly three-sided except the lowest; all the cells of the series, except the 

 distal and basal, cutting off from one to five relatively small obliciuely 

 superposed cells bearing appendages or antheridia; the bases of which, 

 crowded in oblic{ue rows, are visible only on the left face, that is only 

 when the anterior series lies at the left: posterior series consisting of 

 about sixteen cells, similar to the anterior series, the basal cell also 

 separating an appendiculate cell: median series consisting of more 

 often fifteen cells, the four below the peritheeium larger, irregularly 

 squarish to hexagonal; those next the peritheeium extending to the 

 base of its tip, two or three of the distal ones extending beyond the 

 base of the primary appendage, which is inconspicuous and projects 

 somewhat obliquely from the left face; four or five successive distal 

 cells of the series, usually not including the terminal one, cutting off 

 one, or the lower two, appendiculate cells; the appendages, or their 

 bases, lying on the right face. Antheridia numerous, hyaline, taper- 

 ing almost uniformly to the blunt apex; the neck but slightly dis- 

 tinguished, straight or slightly curved. Appendages longer and larger 



