Artículos
Kennedy, Helen. "Unusual floral morphology in a high altitude calathea (Maran..." (1-9-)
Ramírez B., William. "Evolution of the strangling habit in Ficus L., Subgenus Uros..." (11-19-)
Ciccio, José F. "Tabersonina y coronaridina en semillas de plantas del género..." (21-24-)
Gómez, Luis Diego. "Contribuciones a la pteridología costarricense XI. Hermann C..." (25-79-)
Wagner L., Warren. "An enigmatic polypody fern from Cartago Costa Rica" (81-103-)
Janzen, Daniel H.. "Developmental demography of Bauhinia pauletia Pers. (Legumin..." (105-111-)
Gagné, Raymond J.. "The Cecidomyiidae (Diptera) associated with chromolaena odor..." (113-131-)
Villa, Jaime. "A New species of pimelodid catfish of the genus Rhamdia from..." (133-142-)
McDiarmid, Roy . "The Systematic status of the lizard Bachia blairi (Dunn) 194..." (143-153-)
Kruckow, Thorwald. "The Record of Cliona Grant 1826 (Porifera) in the Neogen of ..." (155-161-)
DeLong, Dwigth M. "The Leafhoppers (Homoptera : Cicadellidae) known from Chile" (163-267-)