During the year 1928-29, I have done no concentrated work on the Iowa mosses. A few interesting specimens have been picked up, however, in the little time that it was possible to devote to the work. Collections have been started in the vicinity of Ames, a part of the state in which almost no collecting has been reported. The Ledges State Park at Boone promises interesting possibilities, since the geological formations are quite different from those of the rest of the state. Rhodobryum roseum (Weis.) Limpr. was found fruiting. Dr. A. J. Grout says of this species, "Although common, in fruits infrequently either in America or England but reproduces freely by its stolons."