Reinvestigation of the type material for Odontidium hyemale (Roth) Kützing and related species, with description of four new species in the genus Odontidium (Fragilariaceae, Bacillariophyta)
Aichryson santamariensis (Crassulaceae): a new species endemic to Santa Maria in the Azores
Three new combinations of Butyriboletus (Boletaceae)
Lecanicillium sabanense sp. nov. (Cordycipitaceae) a new fungal entomopathogen of coccids
Piriqueta pampeana, a new species of Turneraceae (Passifloraceae s.l.) from Rio Grande do Sul, Brazil
The rediscovery of Astragalus autranii (Fabaceae) on Mt Tomor, south central Albania
Impatiens kingdon-wardii (Balsaminaceae), a new species from Mt. Victoria (Natma Taung), Myanmar
Bulbophyllum salweenensis (Orchidaceae; Epidendroideae; Malaxideae), a new species from Yunnan, China
Corrections to Phytotaxa 222: Some nomenclatural adjustments and typifications for almond species in the genus Prunus sensu lato (Rosaceae)
Review of East African Plant Collectors
