What does volva mean?
A volva is a distinctive fungal structure found at the base of the stalk of certain mushrooms. It is formed from the universal veil, a partial covering present around many young mushrooms; as the mushroom expands, the veil may rupture and leave a cup, sac, or skirt-like remnant called the volva. This feature is especially associated with certain Amanita species, although not every species in that genus has one. In field identification, the volva can provide valuable evidence, but it should be considered alongside the cap, gills, spores, and the habitat rather than used by itself. The word belongs primarily to the vocabulary of mycology and botanical description. Its unusual appearance also makes it memorable: a volva is both a remnant of the mushroom's earlier protective covering and one of the features used to distinguish otherwise similar fungi.
nounA sac-like or cup-like structure at the base of some mushrooms, formed by the remains of the universal veil. It is especially characteristic of certain Amanita species.
- The sac-like or cup-like fungal covering at the base of the stalk of certain mushrooms, formed from remnants of the universal veil.
"The young mushroom was still partly enclosed by its volva when it was found beneath the pines."
"A broken volva was visible around the base of the Amanita."
"Mycologists may examine the volva and other veil remnants when identifying a mushroom."
The standard plural is volvas.
"Several Amanita species have volvas at the base of their stalks."
When a mushroom's universal veil splits, the leftover cup-like skirt at its base is the volva.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of volva
The word comes from Latin volva, an old term associated with a membrane, covering, womb, or uterus. In modern English it was adopted in botany and mycology for the veil-like structure found at the base of certain mushrooms. Latin volva is related to a wider family of words derived from the root “to turn or roll,” including revolve, involve, convolve, and volvulus.
Related word forms
How volva is actually used
This is a specialized term used chiefly in mycology, the study of fungi. It is uncommon in general English but is important in descriptions of mushrooms and in identification guides.
Easily confused with volva
A volva is a mushroom's veil-derived covering, whereas a vulva is the external opening of the female genital tract.