Kowalski, W.W.A. 2024. Micrasterias crux-melitensis Ehrenberg var. multispinosa W.W.A.Kow. var. nov. and Xanthidium fasciculatum Ehrenberg ex Ralfs var. burchardtii W.W.A.Kow. var. nov. – new taxa for the desmidia flora from wetland ecosystems of Western Pomerania, Poland . Annales Universitatis Paedagogicae Cracoviensis Studia Naturae. 9, 1 (Jun. 2024). DOI:https://doi.org/10.24917/25438832.9.x .