Alkanna malatyana (Boraginaceae), a new species from East Anatolia, Turkey
Biogeographical variability and re-description of an imperfectly known species Hamatocanthoscypha rotundispora (Helotiales, Hyaloscyphaceae)
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
A taxonomic revision of the Capparis spinosa group (Capparaceae) from eastern Africa to Oceania
A taxonomic revision of the genus Digitaria (Panicoideae: Poaceae) in mainland Southeast Asia
A new North African subspecies in the Helianthemum origanifolium aggregate (H. subg. Plectolobum, Cistaceae)
Penium amplificatum status nova (Desmidiales, Streptophyta)
Rediscovery of Hieracium nebrodense (Asteraceae), a little-known endemic of Sicily (Italy)