page_title: Annulus (mycology)
hierarchical_section_title: Annulus (mycology)
caption_attribution_description: Gymnopilus junonius English: Mushroom growing on dead pinus radiata stump, Wellington, New Zealand.
context_page_description: An annulus is the ring-like structure sometimes found on the stipe of some species of mushrooms. The annulus represents the remaining part of the partial veil, after it has ruptured to expose the gills or other spore-producing surface. An annulus may be thick and membranous, or it may be cobweb-like. An annulus may be persistent and be a noticeable feature of a mature mushroom, or it may disappear soon after the emergence of the mushroom, perhaps leaving a few remnants on the stipe as an "annular zone".
  The position, shape, or other description of the annulus of a mushroom may be used in the identification and classification of mushrooms.
  pendant - drooping or skirt-like
  flaring - spreading outward from the stipe
  sheathing - opening upwards around the stipe
context_section_description: An annulus is the ring-like structure sometimes found on the stipe of some species of mushrooms. The annulus represents the remaining part of the partial veil, after it has ruptured to expose the gills or other spore-producing surface. An annulus may be thick and membranous, or it may be cobweb-like. An annulus may be persistent and be a noticeable feature of a mature mushroom, or it may disappear soon after the emergence of the mushroom, perhaps leaving a few remnants on the stipe as an "annular zone".
  The position, shape, or other description of the annulus of a mushroom may be used in the identification and classification of mushrooms. 
  pendant - drooping or skirt-like
  flaring - spreading outward from the stipe
  sheathing - opening upwards around the stipe
caption: A ring can be seen on the stem of this Gymnopilus junonius mushroom.
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