The following new species are described and illustrated: C. adinocladum, resembling C. cuniculorum generally, but separated by the robust terminal hairs which are gracefully sinuous or loosely curved at their tip and never extend far beyond the mass of delicate, finely branched, fluffy hairs; C. anahelicinum, resembling C. crispatoideum and C. crispatum, in having contorted terminal hairs but producing many regularly coiled branches of the terminal hairs; C. ancistrocladum, a member of the C. murorum group, characterized by large, light brown, ellipsoid ascospores and long, circinate terminal hairs, which are intermingled with shorter, noticeably branched, looped hairs; and C. semispirale, a member of a group having short, spirally coiled terminal hairs, characterized by loosely, 3–4 times coiled, distinctly septate terminal hairs, straight or slightly flexed lateral hairs, dark, lemon-shaped ascospores, and rich orange-colored mass of chlamydospores. Unusual species, C. erraticum and C. subaffine are also redescribed.