Taxonomic Revision of Cuphea sect. Trispermum s.l. (Lythraceae)
Two new species of Spathiphyllum (Araceae) from Tabasco, Mexico with notes on their floral scent
Siphula paramensis V. Marcano & L. Castillo (Icmadophilaceae, Lichenized Fungi), a new species from the high paramo in Venezuela
Begonia ciliatifolia (Begoniaceae), a rare, critically endangered new species endemic from Santa Catarina, southern Brazil
Zamia brasiliensis, a new species of Zamia (Zamiaceae, Cycadales) from Mato Grosso and Rondônia, Brazil
Species definition of Dioon sonorense (Zamiaceae, Cycadales), and description of D. vovidesii, a new cycad species from northwestern Mexico
Cleistes pallida (Orchidaceae Vanilloideae): a new species from South Brazil
A taxonomic revision of the western South American genus Presliophytum (Loasaceae)
A synopsis of Cousinia sect. Pseudactinia (Cardueae, Asteraceae) including a new species from NE Iran