Koenigia hedbergii (Polygonaceae: Persicarieae), a distinct new species from Shennongjia National Nature Reserve, Central China
Medlinella amphoroidea gen. et sp. nov. (Bacillariophyta) from the neck skin of Loggerhead sea turtles (Caretta caretta)
Eunotia rudis sp. nov., a new diatom (Bacillariophyta) from the Man and Biosphere Reserve at Yangambi, Democratic Republic of the Congo
Description of Tradescantia schwirkowskiana (Commelinaceae), a narrow endemic new species from Santa Catarina, southern Brazil, and typification of T. crassula
A new species of Dimeria (Poaceae) from Andaman and Nicobar Islands, India
Notes on the ornamental potential and taxonomy of Justicia (Acanthaceae, Justicieae), including a first record for the Paraíba flora, Brazil
Taxonomy and ecology of Fragilaria billingsii sp. nov. and analysis of type material of Synedra rumpens var. fusa (Fragilariaceae, Bacillariophyta) from Brazil
Two new species of Podostemaceae from the Yinggeling National Nature Reserve, Hainan, China
Isoëtes vanensis (Isoëtaceae) sp. nov. from Turkey
Two new Gomphonema species (Bacillariophyta) from the Maritime Antarctic Region