Len Verwoerd

• 'n Bydrae tot ons kennis van die Suid-Afrikaanse ustilaginales of brandswamme
• A preliminary list of fungi from the Bloemfontein district of the Orange Free State
• Aantekenings oor 'N Paar Minder Bekende Suid-Afrikaanse Swamme
• Ancestors of Christiaan Hendrik Persoon
• Descriptions of some new species of South African fungi and of species not previously recorded in South Africa-
• Die besmettingsvermoë van die teleuto-stadium van Puccinia graminis Pers. in Suid-Africa
• Peronospora mesembryanthemi,n.sp., die oorsaak van 'n donsige skimmelsiekte van Mesembryanthemum-soorte
• Preliminary report on the occurrence in South Africa of black chaff disease in wheat
• Suid-Afrikaanse Lycoperdaceae en Nidulariaceae
• The distribution and prevalence of physiologic forms of Puccinia graminis tritici in the Union of South Africa, 1930-1934