Morphological variability within the Achnanthidium minutissimum species complex (Bacillariophyta): comparison between the type material of Achnanthes minutissima and related taxa, and new freshwater Achnanthidium species from Portugal
Sporolithon yoneshigueae sp. nov. (Sporolithales, Corallinophycidae, Rhodophyta), a new rhodolith-forming coralline alga from the southwest Atlantic
Two new species of Rhodiola (Crassulaceae) from the Qinghai-Tibetan Plateau
Lacomucinaea, a new monotypic genus in Thesiaceae (Santalales)
Eutrema racemosum (Eutremeae, Brassicaceae), a new tetraploid species from southwest China
Two new combinations in Persicaria sect. Echinocaulon (Polygonaceae: Persicarieae)
Neotypification of Pancratium sanctae-mariae (Amaryllidaceae)
