In: Sydowia 69, (2017): 115-122 DOI 10.12905/0380.sydowia69-2017-0115 Published online on January 30th, 2017

Tylopilus aquarius, comb. et stat. nov., and its new variety from Brazil
Anderlechi Barbosa-Silva, Clark L. Ovrebo, Beatriz Ortiz-Santana, Mariana C. A. Sá, Marcelo A. Sulzbacher, Mélanie Roy & Felipe Wartchow

Barbosa-Silva A., Ovrebo C.L., Ortiz-Santana B., Sá M.C.A., Sulzbacher M.A., Roy M. & Wartchow F. (2017) Tylopilus aquarius, comb. et stat. nov., and its new variety from Brazil. – Sydowia 69: 115–122.

We propose the new species and new combination, Tylopilus aquarius var. aquarius, by elevating T. potamogeton v. aquarius to species level. We also describe a new variety, T. aquarius var. megistus, from the Atlantic Forest states Paraíba and Rio Grande do Norte, Brazil, that produces larger, robust basidiomata and smaller basidiospores as compared to T. aquarius var. aquarius.

Keywords: Agaricomycetes, Boletaceae, Boletales, Neotropics, taxonomy.