ABSTRACT

Classication of fungi (eukaryotic organisms) follows the same rules. Yeasts and molds are members of fungi distinguished according to specic morphology, respectively a predominant monocellular or pluricellular state; they are not true taxonomical groups. According to the rules of the International Committee on Taxonomy of Viruses, virus classication starts at the order level, but they are excluded from the phylogenetic tree of life.