SUMMARY
The author presents the families, the genera, and as possible the species of Bryophytes so far known, often found in the tropical rain-forest in a range of 150Km around Manaus. State of Amazonas, Brasil. Artificial keys for identification of classes, and in particular cases for identification of genera and species are presented. Each family is described in a succint way under the morphological viewpoint, the preferential habitat, and the general geographic distribution. The technical terms used in the descriptions are defined in most of botanical dictionaries or in the texts concerning to Bryothytes morphology, made easier with the the inclusion of 536 figuras in this monograph.