Calvatia gigantea

Calvatia gigantea, commonly known as the giant puffball, is a species of puffball mushroom in the family Agaricaceae. It is found in meadows, fields, and deciduous forests across North America, Europe, and parts of Asia.

Description

The fruiting body of Calvatia gigantea is large and round, typically ranging from 10 to 70 centimeters in diameter. The outer surface is smooth and white when young, but becomes yellowish and cracked with age. The interior is initially solid and white, but becomes a mass of brown spores as the mushroom matures.

Edibility

Calvatia gigantea is edible when young and the interior is still white. It has a mild, pleasant flavor and a texture similar to tofu. It can be sliced and fried, baked, or used in soups and stews. However, it should be avoided if the interior has started to turn yellow or brown, as this indicates that the spores are maturing and can cause gastrointestinal upset if consumed.

Ecology

Calvatia gigantea is a saprobic fungus, meaning it obtains its nutrients from decaying organic matter. It is most commonly found in meadows and fields, but can also occur in deciduous forests. It is often found growing alone, but can also form fairy rings.

Cultural Significance

In addition to its culinary uses, Calvatia gigantea has also been used in traditional medicine. In some cultures, the spores are used to stop bleeding and promote healing of wounds.

See Also

• List of Agaricaceae genera
• Puffball

References

• Mushrooms and Other Fungi of North America by Roger Phillips
• Mushrooms Demystified by David Arora