A phylogenetically-based nomenclature for Cordycipitaceae (Hypocreales)

Abstract

The ending of dual nomenclatural systems for pleomorphic fungi in 2011 requires the reconciliation of competing names, ideally linked through culture based or molecular methods. The phylogenetic systematics of <i>Hypocreales</i> and its many genera have received extensive study in the last two decades, however resolution of competing names in <i>Cordycipitaceae</i> has not yet been addressed. Here we present a molecular phylogenetic investigation of <i>Cordycipitaceae</i> that enables identification of competing names in this family, and provides the basis upon which these names can be maintained or suppressed. The taxonomy presented here seeks to harmonize competing names by principles of priority, recognition of monophyletic groups, and the practical usage of affected taxa. In total, we propose maintaining nine generic names, <i>Akanthomyces, Ascopolyporus, Beauveria, Cordyceps, Engyodontium, Gibellula, Hyperdermium, Parengyodontium,</i> and <i>Simplicillium</i> and the rejection of eight generic names, <i>Evlachovaea</i>, <i>Granulomanus</i>, <i>Isaria</i>, <i>Lecanicillium, Microhilum, Phytocordyceps, Synsterigmatocystis,</i> and <i>Torrubiella</i>. Two new generic names, <i>Hevansia</i> and <i>Blackwellomyces</i>, and a new species, <i>Beauveria blattidicola</i>, are described. New combinations are also proposed in the genera <i>Akanthomyces, Beauveria, Blackwellomyces,</i> and <i>Hevansia.</i>