Angiosperm Phylogeny Group (APG): Molecular-Based Classification of Flowering Plants Angiosperm Phylogeny Group Angiosperm Phylogeny Group (APG): an international botanist collaboration using molecular phylogenetics to develop consensus, evolution-based classifications of flowering plants, u…
Genus (biological classification) Genus A genus is a principal taxonomic rank grouping closely related species. This article explains its role, naming conventions, history, practical use, and how taxa are delimited and r…
Polyphyly: definition, examples, and significance in biological classification Polyphyly Polyphyly is a pattern of grouping organisms that do not share a recent common ancestor within the group. This article explains the concept, examples, history, and how taxonomists…
Tree of life (biology): evolutionary relationships and phylogenetic concepts Tree of life (biology) A summary of the biological 'tree of life' concept: its meaning, history, data and methods, limits such as horizontal gene transfer, and its uses in classification and research.
