''Urocystis occulta'' is a smut fungus which attacks the leaves and stalks of

rye Rye (''Secale cereale'') is a grass grown extensively as a grain, a cover crop and a forage crop. It is a member of the wheat tribe (Triticeae) and is closely related to both wheat (''Triticum'') and barley (genus ''Hordeum''). Rye grain is u ...

(''Secale cereale''). It is found in Australia, Europe, and North America. The fungus was first described by German botanist

Karl Friedrich Wilhelm Wallroth Karl Friedrich Wilhelm Wallroth (13 March 1792 in Breitenstein, Saxony-Anhalt – 22 March 1857 in Nordhausen, Thuringia, Nordhausen) was a German botanist. His name is abbreviated Wallr. as a taxon authority. He attended classes in medicine ...

under the name ''Erysiphe occulta'' in 1833.

References

Fungi described in 1833 Fungi of Australia Fungi of Europe Fungi of North America Fungal plant pathogens and diseases Rye diseases Pleosporaceae Taxa named by Karl Friedrich Wilhelm Wallroth {{Pleosporales stub