Much discolouring birch mushroom
| Much discolouring birch mushroom | ||||||||||||
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Much discolouring birch mushroom ( Leccinum variicolor ) |
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| Leccinum variicolor | ||||||||||||
| Wading |
The many discolouring birch mushroom ( Leccinum variicolor ), also called differently colored or spotted grouse , is a type of mushroom from the family of thick boletus relatives . The species forms mycorrhiza exclusively with birch trees and prefers swampy, acidic sites. The much discolored birch mushroom is one of the edible mushrooms .
features
The 5–15 cm wide hat is initially hemispherical in shape and later flattened like a cushion. The hat skin is light gray-brown to reddish-brown, later often more or less brown, smooth, bare, dry and moist rather greasy. The tubes are white, light pink, cream at a young age, and later dirty cream in color. In old age, the tubes on the hat can bulge outwards, and around the handle they are badly dented. The tube layer is very easy to remove from the hat meat. The 5–15 cm long and 1–3.5 cm thick stalk is slender, white and dark to black, irregularly scaled and tapers towards the top. The base of the stem is often green-blue in color. The flesh of young specimens is relatively firm, but very soon, especially in rainy weather, it becomes spongy and water-containing. The whitish, later more cream-colored meat turns light pink on contact with atmospheric oxygen, after a while bluish colors appear. The meat turns black when cooked.
Species delimitation
The much discolored birch mushroom is very often confused with other birch mushrooms or red caps . However, all mushrooms of the genus Raufussröhrlinge are edible.
Ecology and phenology
The much discolored birch mushroom is less common in Europe and can be found within the birch area. Preferred locations are moors and wetlands . The much discolored birch fungus does not occur on alkaline soils (lime ground). It is a mycorrhizal partner of the birch species and grows from June to October.
meaning
The much discolouring birch mushroom is edible like the common birch mushroom ( Leccinum scabrum ), but should be spared because of its rarity.
swell
literature
- Kallenbach: The boletus (Boletaceae) . Klinkhardt, Leipzig 1940–42
- Ewald Gerhardt: Mushrooms. Volume 2: Röhrlinge, Porlinge, Belly mushrooms, ashlar mushrooms and others . Spectrum of Nature FSVO Intensive, 1985
