Language: Italian
The author presents some rare or poorly known taxa of the genus Russula Persoon by the form of the monography he has in preparation. They are:
R. taigarum Ruotsalainen & Vauras
R. brunneoviolacea Crawshay
R. poichilochroa Sarnari
R. subterfurcata Romagnesi
R. zvarae var. zvarae Velenovsky
R. zvarae var. pusilla Sarnari.