Floral geometric morphometrics unveils a new cauliflorous species of Aristolochia (Aristolochiaceae) from the Guiana Shield
A critical analysis of the type of Navicula skuae with the description of a new Navicula species (Naviculaceae, Bacillariophyta) from the Antarctic Region
Dioon oaxacensis (Zamiaceae): a new cycad species from the arid central valleys of Oaxaca (Mexico)
A new species of Acianthera (Orchidaceae, Pleurothallidinae) from the Cordillera Central of Colombia
