What is "ceratomyces"

Ceratomyces is a genus of fungi in the family Ceratomycetaceae. There are approximately 20 identified species for this genus, with most species occurring on Tropisternus ( Hydrophilidae, Coleoptera) from America. According to Tavares and Shen et al. The genus is characterized by a receptacle of usually 3–4 cells, outer wall cells flattened in alternate vertical rows, other 2 rows with subequal or conspicuously longer and narrower cells, rows usually appearing 3 across, wall cell tiers usually 20 or more (rarely as few as 13), and a perithecium with a slender subterminal or terminal horn (usually multicellular) on only one side.