Olive white woodlouse (Hygrophorus olivaceoalbus) photo and description

Olive White Woodlouse (Hygrophorus olivaceoalbus)

  • Department: Basidiomycota (Basidiomycetes)
  • Subdivision: Agaricomycotina (Agaricomycetes)
  • Class: Agaricomycetes (Agaricomycetes)
  • Subclass: Agaricomycetidae (Agaricomycetes)
  • Order: Agaricales (Agaric or Lamellar)
  • Family: Hygrophoraceae (Hygrophoric)
  • Genus: Hygrophorus (Gigrofor)
  • Species: Hygrophorus olivaceoalbus (Olive white woodlouse)
    Other names for the mushroom:

  • Gigrofor olive-white
  • Sweetheart
  • Blackhead


  • Sweetheart
  • Blackhead
  • Woodlice olive-white

Olive White Woodlouse (Hygrophorus olivaceoalbus)

Olive white woodlouse (Latin Hygrophorus olivaceoalbus ) is a species of Basidiomycete fungi, a member of the Gigrofor genus of the Hygrophoraceae family.

External description

At first, the cap is bell-shaped, cone-shaped, then it becomes prostrate and depressed. In the center there is a tubercle, grooved edges. Slimy, shiny and clammy skin. Rather dense, cylindrical, thin stem. Rare fleshy, wide plates, slightly descending, sometimes with a continuation in the form of thin lines on the top of the leg. Loose white flesh with a weak but sweet taste and pleasant smell. Elliptical smooth white spores, 11-15 x 6-9 microns. The color of the cap changes from brown to olive green and darkens towards the center. Above the leg is white, below it is covered with ring-shaped growths.


Medium quality edible mushroom.


Olive white woodlice is found in coniferous and mixed forests, most often with spruce and pine.


Summer autumn.

Similar species

The olive-white woodlouse is similar to the edible hygrophorus persoonii, but it has a dark brown or brownish-gray cap and is found in deciduous forests.