Russula(Basidiomycota, Russulales, Russulaceae) subsect.Roseinae“down under”

Abstract

The present contribution presents species of Russula subsect. Roseinae Sarnari from the southern hemisphere. Russula incrustata Buyck, sp. nov. and R. koniamboensis Buyck, sp. nov. are described from New Caledonia, R. purpureotincta R. F. R. McNabb from New Zealand is redescribed in detail and two secotioid species, R. albobrunnea T. Lebel from Australia and R. kermesina (R. F. R. McNabb) T. Lebel from New Zealand are shown to be the first known secotioid taxa in Roseinae. The systematic placement and importance of these southern taxa is discussed.