THAXTER. 



Female individual. Receptacle hyaline, usually turned so that it is 

 viewed edgewise, somewhat broader opposite the lower secondary 

 appendage, consisting of a longer basal cell and three obliquely super- 

 posed flattened cells terminated liy the undifferentiated basal cell of 

 the primary appendage ; which is small and not otherwise distinguished 

 from the cells below it; the cell above it is distinguished by a black 

 septum, but is not deeply suffused, and is in general like that of the 

 male, though sometimes smaller. A single secondary appendage 

 arising from the subbasal cell of the receptacle, similar to the primary, 

 and separated from its basal cell by a contrasting black septum. 

 Perithecium usually arising from the subterminal cell, of the receptacle, 

 rarely from the terminal, above the secondary appendage; erect or 

 l)ent sidewise at the base, sessile or the stalk very short, the ascus- 

 apparatus filling the whole cavity; asymmetrical, transparent, pale 

 smoky brown, distally rounded outward on one side below the rather 

 abruptly distinguished tip, the base of which is more deeply suffused 

 with blackish ; forming a more or less definite transverse black hand, 

 above which it is quite hyaline except for a deep blackish suffusion just 

 below the hyaline apex; which is rounded, slightly asymmetrical and 

 bent. Spores 30 X 4 /x. Perithecia 75 X 20-24 ^t. Receptacle 

 55-65 X 25 fx. Appendages about 40-45 X 7-S m- Total length to 

 tip of perithecium 120-135 fx. 



On the right inferior posterior surface of the prothorax of a small 

 carabid allied to Tachjs, Peradeniya, Ceylon. No. 2093b, and 

 Samarang, Java, No. 20Slc. Known also from Borneo and the 

 Philippines. 



This species is not nearly allied to any known form. The antheridia 

 are unusually numerous and quite unique in form and appearance 

 owing to the deeply blackened neck and abruptly bent hyaline dis- 

 charge tube. I have taken the liberty of naming this very distinct 

 form for Mr. T. Petch, whose admirable work on the fungi of Ceylon 

 is well known to all mycologists and to whom I am indebted for all 

 the Ceylon species herewith described. 



Dimeromyces appressus nov. sp. 



Male individual. Receptacle lying nearly flat on the substratmn, 

 the antheridium toward the female; two-celled, the basal cell suffused, 

 broader than long, extending outward beneath the antheridium, the 

 base of which rests on it; subl)asal cell concolorous, subtriangular, 



