SUMMARY
One new species, distinguished by the possession of distinct, thick- walled cystidia, of the genus Exidiopsis is described. Sebacina hirneoloides Pat., the type species of the genus Hirneolina (Pat.) Bres., is described in detail and is transferred to the genus Heterochaete Pat. Additional collections of Hyaloria pilaere Möll, extend the known morphological diversity of this species.