A worldwide nomenclature revision of sequestrate Russula species

Before the application of molecular techniques, evolutionary relationships between sequestrate genera and their epigeous counterparts in the <I>Russulaceae</I> were unclear. Based on overwhelming evidence now available, personal observations, and consideration of the International Code for Nomenclature of Algae, Fungi and Plants, we combine the overlapping sequestrate generic names <I>Bucholtzia, Cystangium, Elasmomyces, Gymnomyces, Macowanites</I>, and <I>Martellia</I> with the agaricoid genus <I>Russula</I>. This nomenclatural action follows precedents set by earlier mycologists and continues an effort to create clarity in our understanding of the evolutionary affiliations among sequestrate fungi - particularly the <I>Russulaceae</I>. We also provide the first comprehensive list of described sequestrate species of <I>Russula</I>.