POUZAR Z., JECHOVÁ V. (1967): Botryobasidium robustior spec. nov., a perfect state of Oidium rubiginosum (Fr.) linder. Česká Mykologie 21(2): 69-73 (published: 1967) abstract The authors describe a new species Botryobasidium robustior, which is the perfect state of Oidium rubiginosum. It was collected in a forest near Mělník, Bohemia, and is similar to B. aureum and B. candicans.