Flora of North America Volume 27 is the first volume of three on the bryophytes (mosses, hornworts, and liverworts). Thirty-five authors treat the first half of the mosses, including 32 of the acrocarpous families, with introductory chapters on bryophyte morphology, the history of North
America floristic bryology, and economic uses. The 84 species of sphagnum, of considerable economic importance, are fully treated. The number of taxa total 37 genera...