Abstract
Apodospora is a new coprophilous genus of the Sordariaceae with dark, ostiolate perithecia. The eight-spored ascus has a conspicuous thickened ring in the apex. The asci are mixed with abundant filiform paraphyses. The ascospore has one dark cell and no hyaline cells. They are surrounded by a gelatinous sheath and have a single apical germ pore. The three new species described and illustrated are A. simulans (type of genus), on moose dung, Ontario, Alberta, Idaho, and South Dakota; A. thescelina, on rabbit dung, Wyoming; and A. viridis on rabbit dung, Mexico.