Division of Biology, Faculty of Science, University of Zagreb
Abstract
\u27Araphid\u27 diatom classification is discussed from the point of view of an \u27absolute standard\u27 for taxonomic rank. The \u27absolute standard\u27 is the phylogenetic tree, its nodes, the included monophyletic groups and sub-groups. To illustrate this point a few species from the genus Licmophora are re-analysed and the resulting phylogenetic tree is discussed in terms of a possible classification, the groups and sub-groups and their ranks