Revision of Philodendron subgenus Pteromischum (Araceae) for Pacific and Caribbean tropical America. Grayum, Michael, H.
Phenotype expression of epiphytic Gesneriaceae under different microclimatic conditions in Costa Rica. Freiberg, M.
Musaespora kalbii (lichenized Ascomycetes: Melanommatales), a new folicolous lichen with a pantropical distribution. Lücking, R. & L. E. Sérusiaux.
Light environment and photosynthesis of an understore and a pionner species from premontane rainforest of Costa Rica. Stegemann, J. et al.
Las abejas de la Reserva Biologica de San Ramón lista preliminar y anotaciones ecológicas sobre la familia Apidae. Lobo, J.
Element contents of soil and leaves and their correlation in five tree species in an area of the Reserva Biologica Alberto Brenes, Costa Rica. Birkelbach, J. & R. O. Vargas.
Las relaciones de los nutrientes en las hojas de los helechos arborescentes en la Reserva Biologica Alberto Ml. Brenes. Weber, C. et al.
Mapping geomorphology and trails around the biological station at the Reserva Biologica Alberto Brenes (sierra de tilaran), Costa Rica. Breckle, S. W. & R. Breckle.