Leucoagaricus leucothites

Rosablättriger Egerlingsschirmling ( Leucoagaricus leucothites )

The conditionally edible and almost worldwide spread Rosablättrige or Common Egerlingsschirmling ( Leucoagaricus leucothites ) is a species of fungus in the family of mushroom relatives ( Agaricaceae ). It is also called Rosablättriger Egerlingsschirmpilz / mushroom Parasol mushroom. The whitish, medium-sized fruit bodies resemble a mushroom, but have white and only at the age of pale pink colored fins and an equally colored spore powder. The stem base is always without scabbard. The fruiting bodies of the fungus appear saprobiontischen August to October usually outside of forests in gardens, parks and meadows.

• 6.1 Notes and references

Features

Macroscopic characteristics

The cap is 5-10 cm broad, campanulate young, then convex and expanded later. The Hutmitte is hunched sometimes more or less dull. The smooth, silky - matt surface is whitish to cream, the disc is colored often pale - ochraceous in age. The white and old pale flesh-colored to pink colored slats are free lollies. They are quite thin and are pretty crowded, the spore powder is white to pale pink. The cream- white stalk is 6-8 cm long and 1-2 cm wide. It is cylindrical in shape and inside enghohl. His narrow, membranous ring can be removed upwards. The stem base is thickened tuberous and can be up to 2.5 cm thick. It is in contrast to the Amanita mushrooms never in a sheath. The white, firm flesh is thick in the Hutmitte to 1.5 cm and is towards the edge thinner. It smells and tastes slightly mushroom-like and not very conspicuous.

Microscopic characteristics

The smooth, elliptical spores are 8-9 microns long and 5-6 microns wide. They are hyaline and thick-walled and have a germ pore. The bent - cylindrical to narrowly clavate - cheilocystidia are 40-60 microns long and 10-15 (-20 ) microns wide. The end cells of the hat skin are cylindrical, narrow - clavate or fusiform and measure 40-130 × 10-15 microns.

Artabgrenzung

The species from the Leucoagaricus - leucothites complex are very difficult to distinguish and the species rank and distinction of the different species to each other is highly controversial. Else C. Vellinga 2001, all she put in synonymy to Leucoagaricus leucothites, only Fleischblättrige Egerlingsschirmling (L. carneifolius ) receives her the rank of a variety. The Fleischblättrige Egerlingsschirmling differs by its slightly greyish and aged more brownish hat and the somewhat smaller spores (7-9 × 4.5-6 microns ) and cheilocystidia (25-35 × 7-9 microns ). The Engblättrige Egerlingsschirmling (L. densifolius ) has also gilbendes meat, its blades discolor early and later brownish pink. The spores are quite large with 10 (-12) microns in length. The Silky Egerlingsschirmling (L. holosericeus ) has gilbendes meat and fins discolor like the commons Egerlingsschirmling until late pink pale. Its spores are 9 (-10) microns long, the white silky mat hat and the end cells of the hat skin spindle-shaped and narrow. The Whitish Egerlingsschirmling (L. subcretaceus ) has immediate tanning flesh and a hat skin, which tears open - feldrig scaly with age.

Ecology

The fungus often comes to Human-influenced places mostly before outside of forests. It is found in gardens and parks or to (forest ) roadsides, even in greenhouses. He often occurs spontaneously after the creation of new gardens, embankments or vegetable beds and is usually disappears again in the following year. Semi-natural habitats are semi-arid and steppe grass, business fields and sand dunes and alder forests. The fungus preferred moderately to significantly nitrogenous, neutral to alkaline and fresh loamy soil. But he also happens to vegetable detritus, on compost pile and on similar enriched with nutrients sites. The fruiting body usually appear from July to October, rarely sooner or later.

Dissemination

The fungus is spread almost worldwide and was probably introduced to many countries. Evidence is there from Australia, New Zealand, Asia (Turkey, Israel, Armenia, West Siberia, Sri Lanka, India, Japan ), America (Argentina, Chile, USA, Canada ), Africa (Morocco, Algeria) and Europe. In Europe, the Rosablättrige Egerlingsschirmling is scattered in all countries to spread. In the north you can find him until the middle of Finland and east to Moscow. The fungus was still in the 1950s in Germany very absent-minded, since the species is understood but in constant spread and become very common in many areas. Maybe it's something rare in northern Germany.

Importance

The Rosablättrige Egerlingsschirmling is indeed edible but not very tasty, and therefore only suitable as a mixed mushroom. Especially for novice mushroom pickers, the fungus should be taboo, as it can be quite easily confused with the deadly poisonous Amanita mushrooms white. Therefore, it is classified as non- edible mushroom in many fungal leaders.

Swell

• Paul Kirk: Leucoagaricus leucothites. In: Species Fungorum. Accessed on 27 January 2014.
• Leucoagaricus leucothites. In: MycoBank.org. International Mycological Association, accessed on 27 January 2014 ( English).