Revisiting sectionCompressaofChaetoceros(Bacillariophyceae), with descriptions ofC. brevispinosus sp. nov. andC. ornatus comb. nov.

Recent studies have described several new species within the section Compressa of the genus Chaetoceros. To explore the diversity in the section, further studies were conducted based on monoclonal strains established from Chinese warm waters. A combination of molecular and morphological data showed the presence of a new species, Chaetoceros brevispinosus, within the section. Morphologically, C. brevispinosus is characterised mainly by the...