Hypomyces lithuanicus

{{Short description|Species of fungus}}

{{Speciesbox

| image =

| image_caption =

| genus = Hypomyces

| species = lithuanicus

| authority = Heinr.-Norm. (1969)

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Hypomyces lithuanicus is a parasitic ascomycete in the Hypocreales order. The fungus produces a cream-ochre to cinnamon-colored granular or velvety growth of mycelium on the surfaces of the gills of agaric fungi like Lactarius torminosus, causing them to be deformed.