THAXTER. — NEW LABOULBENIACE.E. 443 



MISGOMYCES nov. genus. 



Receptacle consisting of numerous cells superposed singly or in tiers 

 of two to three cells each, terminating in a more or less irregularly 

 cellular base bearing appendages singly or in groups. The solitary 

 perithecium arising beside the appendages, the two situated in relation 

 to one another as in Laboulbeuia. 



The antheridia could not be recognized in the material examined, the 

 appendages being more or less broken in all cases, but are doubtless 

 simple, the genus being probably related to Laboulbenia, while at the 

 same time it suggests some forms of Ceratomyces. 



Misgomyces Dyschirii nov. sp. 



Rather rich amber brown, the receptacle consisting of from eight to 

 twenty-three superposed cells, the upper ones rarely divided longitu- 

 dinally, the distal cell lying between several, usually three, smaller cells 

 which become separated from it on either side, and which, together with 

 its base, are united to the base of the perithecium ; while above it, and 

 separated from it by a thin dark insertion, a cellular base gives rise to 

 the group of appendages, the irregular basal cells of which alone remain 

 in the material examined. Perithecium nearly oval or very slightly 

 pointed, the tip and lips undifferentiated. Spores, seen only in peri- 

 thecium, with base apparently abruptly recurved or bent, about 60 X 

 3.8/^. Perithecia 70-85 X 35-40 //. Receptacle 135-400 /x. Total 

 length to tip of perithecium 200-435 fx. 



On Dyschirius globosus Herbst., Hope Coll., No. 349, England ; on 

 D. salinus Schaum., British Museum, No. 582, Europe. 



Misgomyces Stomonaxi nov. sp. 



Hyaline or pale straw colored. Receptacle consisting of a basal and 

 one or two more single superposed cells, the cells above these becoming 

 rather irregularly divided longitudinally to form a double row of variable 

 length, above which a second longitudinal division appears, the recepta- 

 cle in this region being made up of three-celled tiers as far as the base 

 of the perithecium, above which its distal part consists of several super- 

 posed pairs of cells, or of two rows of cells more irregularly distributed, 

 the insertion of the appendages rather indefinite, the cells composing it 

 producing irregular hyaline or brownish branches distally. Perithecium 

 externally nearly straight, the inner margin convex, the tip rather abruptly 



