Artículos
Devi, Santha. "Investigations on the surface ultra structure of some spores..." (1-7-)
Vandermeer, John. "Notes on density dependence in Welfia georgii Wendl. Ex Burr..." (9-15-)
Mesler, Michael R. "Notes on the natural history of the mangrove Pelliciera rhiz..." (17-29-)
Wilson, Don E.. "Ecological observations on the tropical strand plants Ipomoe..." (31-42-)
Freese, Curtis H.. "Food habits of white faced capuchins Cebus capucinus L. (Pri..." (43-56-)
Salas Durán, Sergio. "Simbiosis entre Cochinillas de cola (Homoptera : Margarodida..." (57-64-)
DeLong, Dwigth M. "Some new species of Hecalapona (Homoptera : cicadellidae) fr..." (65-68-)
Valerio, Carlos E.. "Tendencia social en adultos de la araña Leucauge sp. (Aranea..." (69-76-)
La Val, Richard K.. "Notes on some Costa Rican Bats" (77-83-)
Gordh, Gordon. "A New neotropical species of Pteromalidae (Hymenoptera : Cha..." (85-94-)
Greenfield, David W.. "The Status of the Lake Maracaibo Anchovy Anchovia nigra Schu..." (101-107-)
DeLong, Dwigth M. "Five new species and two new subgenera of Ponana (Homoptera ..." (109-114-)
Gómez, Luis Diego. "Contribuciones a la pteridología centroamericana II. Novitat..." (115-119-)
Jones, H. G.. "A Note on the genus Cattleya Lindl. (Orchidaceae) in middle ..." (121-125-)
Gómez, Luis Diego. "Un Melocactus Link Otto (Cactaceae) nuevo para Centroaméric..." (126-134-)
Deuth, Debra. "The Function of extra floral nectaries in Aphelandra deppean..." (135-145-)
Angulo, Andrés O. "El macho de Salpis Lata Rindge y Salpis Unica Rindge (Lepido..." (95-11-)