annulus
9.9
A ring of tissue left on a mushroom stem after the cap opens
- noun
- /ˈæn.jə.ləs/
- Specialized
:
anillo
- During our hike, we spotted a mushroom with a distinct annulus around its stem.
Examples
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The annulus of the mushroom was clearly visible, indicating its maturity.
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The biology teacher explained how the annulus helps identify different species of mushrooms.
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When we add the the annulus in there, it what happens here?
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A 3 x 4-mm erosion was noted in the posterosuperior canal wall 5 mm lateral to the annulus.
Academic text (2009)
Synonyms
7
9.9
A thin ring of tissue on a mushroom stem near the cap
has identical meaning but is the more technical anatomical term
Surface Forms
Etymology
Annulus comes from the Latin word annulus, which meant 'little ring'. That's why in mushrooms the annulus is the small ring left on the stem after the cap opens.