The Ferns and Fern-allies of Costa Rica, Panama, and the Choco. Part 1:Psilotaceae through Dicksoniaceae. 1989. (Pteridologia, Vol. 2A). 562 line figures. 364 p. gr8vo. Paper bd.

Contents: Introduction/ List of the families, genera, and subgenera/Key to the families/ Floristic treatments: Psilotaceae/ Lycopodiaceae/Selaginellaceae/ Isoetaceae/ Equisetaceae/ Ophioglossaceae/ Marattiaceae/ Osmundaceae/ Plagiogyriaceae/ Schizaeaceae/ Parkeriaceae/ Adiantaceae/Vittariaceae/ Pteridaceae/ Loxsomaceae/ Hymenophyllaceae/ Gleicheniaceae/ Polypodiaceae/ Cyatheaceae/ Dicksoniaceae. - From the Introduction: Irecognize about 1100 taxa in 117 genera, and new species or species newto the area still are discovered from time to time. Species that becameknown to me after the plates were assembled (e.g. 137a Llaveacordifolia) are given "a" numbers. They and a few others are notillustrated. Judging by the rate of discovery, the Flora appears to beat least 90% complete. The relatively little-known Atlantic slope of themountains from Central Costa Rica to Central Panama is most likely toyield new discoveries and should have first priority in futureexploration.