Mastogloia jahniae sp. nov., a new diatom (Bacillariophyceae) from the Baltic Sea coast of Sweden
Taxonomic diversity and karyology of Anthemis rigida (Anthemideae, Asteraceae) in the Aegean, Greece
Cyathea gratissima, a new name for a Neotropical tree fern (Cyatheaceae, Polypodiopsida)