Morphological and molecular investigation of freshwater Hildenbrandia (Hildenbrandiales, Rhodophyta) with a new species reported from Japan

First record of the dinoflagellate Metadinophysis sinensis (Dinophysales, Dinophyceae) in the Atlantic Ocean

Martensia incipiens (Delesseriaceae, Rhodophyta), a newly recognized species of red algae from the Sultanate of Oman

Description of Myxacorys almedinensis sp. nov. (Synechococcales, Cyanobacteria) isolated from the limestone walls of the Old Cathedral of Coimbra, Portugal (UNESCO World Heritage Site)

Novel Neidium Pfitzer species from western Canada based upon morphology and plastid DNA sequences

Sabbea gen. nov., a new diatom genus (Bacillariophyta) from continental Antarctica

Neidiomorpha gusevii—a new diatom species (Bacillariophyceae: Neidiaceae) from Southeast Asia

Sheathia matouensis (Batrachospermales, Rhodophyta), a new freshwater red algal species from North China

Centroceras gasparrinii subsp. minor subsp. nov. (Ceramiaceae, Rhodophyta) in the North Adriatic Sea (Mediterranean): molecular and morphological characterization

New records of the rare, endemic species Spondylosium luetzelburgianum comb. nov. and S. simplex comb. nov. (Desmidiaceae) from Brazil