Calvatia gigantea (Giant puffball)
North America, Asia and Europe
7-80 cm diameter * 7-80 cm tall
This site contains no information about the edibility or toxicity of mushrooms.
Calvatia gigantea, commonly known as the giant puffball, is a puffball mushroom commonly found in meadows, fields, and deciduous forests usually in late summer and autumn. This is a very easy to recognise puffball and once fully developed it cannot reasonably be mistaken for any other mushroom.

Fruiting body shaped like a ball, or nearly so, white when fresh, becoming yellowish or olive brownish. The surface is less than 1 mm thick. soft, finely velvety when young, becoming bald. The inside of mature Giant puffballs is greenish-brown, whereas the interior of immature puffballs is white. Spore print olive-brown.

Microscopic Features: The spores measure 2.5-4 ┬Ám and have a subglobose to globose shape, with or without a short pedicel. They have a smooth surface and thick walls. In KOH (potassium hydroxide), they appear hyaline (colorless) to yellowish.

Synonyms: A common synonym is Langermannia gigantea.

Calvatia gigantea on the web site.
Calvatia gigantea on the MushroomExpert.Com Web site.

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