The publication of A Catalog and Atlas of the Mosses of Ohio (Snider and Andreas 1996), and the formation of the Ohio Moss and Lichen Association in 2004, have led to a renewed interest in Ohio bryophytes, and to significant additions to the knowledge of Ohio mosses. Since 1996, from collections made on annual forays, independent field trips, and annotations of existing herbarium specimens, 17 species have been added to the list of Ohio mosses. Snider and Andreas (1996) listed 12 species cited in literature without locality data. County distributions, either from field collections or herbarium specimens, have been located for five of the twelve species. Fourteen species, whose county distributions were reported from literature citations (Snider and Andreas (1996), have been verified with existing herbarium specimens or new collections. Ten species listed in Snider and Andreas (1996) have been excluded from the Ohio moss list.