Size
Giant (>25 cm)
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The "Giant" category covers macromycetes whose cap (or fruiting body) diameter consistently exceeds 25 centimeters and in some cases can reach 40-50 cm.
There aren't many such mushrooms in nature. They need ideal conditions and a huge store of nutrients in the mycelium to appear. Often one such mushroom can feed a whole family.
15 species in the database.

Artist's bracket
Ganoderma applanatum
Inedible
Aureoboletus projectellus
Edible
Cauliflower fungus
Sparassis crispa
Edible
Chicken of the woods
Laetiporus sulphureus
Edible
Dryad's saddle
Cerioporus squamosus
Edible
Fleecy milk cap
Lactifluus vellereus
Conditionally edible
Giant funnel
Aspropaxillus giganteus
Conditionally edible
Hen of the woods
Grifola frondosa
Edible
Imperial mushroom
Catathelasma imperiale
Edible
Leccinum percandidum
Edible
Leucopaxillus tricolor
Edible.webp)
Macro mushroom
Agaricus urinascens
Edible
Parasol mushroom
Macrolepiota procera
Edible
Tinder fungus
Fomes fomentarius
Inedible
Umbrella polypore
Polyporus umbellatus
Edible
The best-known giants of the temperate zone
According to mycological guides, there are two absolute leaders among the giants, both of them excellent edible delicacies:
1. Parasol mushroom (Macrolepiota procera):
This is a true skyscraper of the mushroom world. Its stem can grow up to 40 cm tall, and the open, flat cap (covered with brown scales and resembling an umbrella) easily reaches 30-40 cm across. Parasols grow on forest edges and in pastures. Despite their giant size, the flesh stays tender (the caps are fried whole, like cutlets), but the tough stems are usually thrown away.
2. Giant puffball (Calvatia gigantea):
This mushroom has no stem and no cap; it looks like a huge white ball (or a soccer ball) lying in the grass. The giant puffball can reach up to 50 cm in diameter and weigh 5-10 kilograms (the world record is 20 kg). As long as the flesh inside the ball is snow-white, the mushroom is edible and very tasty. A single one can release up to 7 trillion spores!
Atypical giants
Sometimes mushrooms grow giant even when that size isn't normal for them. For example, in unusually warm and wet years, porcini can grow to gigantic sizes (cap 30+ cm, weight up to 2-3 kg). However, such freak specimens are the exception to the rule, and their flesh usually becomes too soft and spongy to eat.
Questions and answers
Are there poisonous mushrooms among the giants?
Sources
- 1.Зерова М.Я. та ін. Визначник грибів України. 1979
- 2.Roger Phillips. Mushrooms (Roger Phillips)
- 3.David Arora. Mushrooms Demystified
- 4.Index Fungorum