New records of pteridophytes from Bolivia

Based mainly on collections made in the last few years, we document 145 spe cies and one additional variety of pteridophytes for the first time in Boli via. Full specimen citations, previously known distributions, and, where ap propriate, taxonomic notes are given for all taxa. The remarkable Bolivian pteridophyte flora previously has been among the most poorly known in the w orld, and it has been thought to be less diverse than the floras of other A ndean countries. Recent collections, of both described and undescribed spec ies, suggest that Bolivia rivals other Andean floras in richness and permit more accurate taxonomic and phytogeographic comparisons with fern floras f rom adjacent areas.