Dioscorea medusae (Dioscoreaceae), a new species from Espírito Santo, Brazil
Myrcia auriculata (Myrtaceae), a new species from the Brazilian Atlantic Forest
Studies in the Neotropical Apocynaceae XLI: A new species of Prestonia (Apocynoideae, Echiteae) from Peru and a key to the Peruvian species
Species of Cyathea in America related to the western Pacific species C. decurrens
A new species of Ponthieva (Cranichidinae, Orchidaceae) from Bolivia
Critoniopsis hermogenesii (Vernonieae, Asteraceae), a new endemic species from Serra do Mar Mountain Range, São Paulo state, Brazil
Typification of some names of Graffenrieda (Melastomataceae: Merianieae)
The threatened Dioscorea galiiflora and the identification of Dioscorea triangularis (Dioscoreaceae): Solving a secular imbroglio
Achnanthidium neotropicum sp. nov., a new freshwater diatom from Lake Apastepeque in El Salvador (Central America)