Coreopsis bakeri (Asteraceae; Coreopsideae), a new species from Florida, USA

Taxonomic studies in the Aganisia complex (Orchidaceae, Zygopetalinae)

Five new species of Stauroneis (Bacillariophyta, Stauroneidaceae) from the northern Rocky Mountains, USA

Corrections to Phytotaxa 222: Some nomenclatural adjustments and typifications for almond species in the genus Prunus sensu lato (Rosaceae)

Asarum chueyi (Aristolochiaceae), a new species from the foothills of the Blue Ridge Mountains of Tennessee and Virginia, USA

Anthracoidea caricis-reznicekii (Anthracoideaceae), a new species on Carex reznicekii, and A. eburneae, a new record for the USA

Typification of names in the genus Duranta (Duranteae, Verbenaceae)

A brackish diatom, Pseudofrustulia lancea gen. et sp. nov. (Bacillariophyceae), from the Pacific coast of Oregon (USA)

New combinations in Tarenaya (Cleomaceae) for the Argentinian flora