Language: Spanish
Volume 132 covers the is the fourth part dealing with the Pteridophyta, a group including the ferns, horsetails, and lycophytes (clubmosses, spikemosses, and quillworts). This fascicle deals with the genus Asplenium sensu lato, which consists of two genera and 710 species worldwide. Following a sensu stricto definition, Mickel & Smith recognise 4 genera and 89 species in Mexico, and one genus and seven species in the study area.