''Peronospora farinosa'' f.sp. ''betae'' is a

forma specialis ''Forma specialis'' (plural: ''formae speciales''), abbreviated f. sp. (plural ff. spp.) without italics, is an informal taxonomic grouping allowed by the International Code of Nomenclature for algae, fungi, and plants, that is applied to a par ...

of '' Peronospora farinosa'', attacking sugar beet.

References

External links

Index Fungorum

USDA ARS Fungal Database
{{DEFAULTSORT:Peronospora Farinosa F.Sp. Betae Water mould plant pathogens and diseases Food plant pathogens and diseases Peronosporales Forma specialis taxa