Boletus aereus
Bronze Boletus (Boletus aereus )
The bronze Röhrling or Schwarzhütige cep (Boletus aereus ) is a species of fungus in the family Dickröhrlingsverwandten. The edible, but relatively rare and schonenswerte Dickröhrling grows in heat favored oak and beech forests. He was chosen by the German Society for Mycology for "mushroom of the year 2008".
- 4.1 Literature
- 4.2 Itemization
Features
The bronze Röhrling forming large, compact, centrally stalked fruiting bodies with hemispherical to pad-shaped, 6-20 cm wide, in exceptional cases up to 25 cm hat. The stalk is 5-15 cm long and 2-5 cm thick, thick bulbous to clavate, rarely cylindric with age. The Hutoberseite is coffee, dark - brown to bronze, sometimes almost black, often with yellow-brown spots. Especially young guard is finely suede-like, glabrous in older fruiting bodies. The stalk is like in the color of the hat he is only a little paler dark to brown leather and is in the upper part of a very fine white to light brownish network covers. The tubes are initially whitish color with age to cream to green yellow. The pores are young barely noticeable and the same color the tubes.
Ecology
The bronze Röhrling preferably in Germany thermally favored oak -hornbeam mixed forests, oak forests and beech forests, can also be found in parks, cemeteries, and similar habitats but occasionally. While in the Mediterranean originate most finds of acidic soils, the Bronze Röhrling comes in Central Europe usually in front of the neutral and basic ground. He prefers dry to fresh, loamy locations and avoids wet ground. Like all boletus is the bronze Röhrling a Mykorrhizabildner, which come in Central Europe only deciduous trees into consideration. There he grows predominantly among oaks, significantly less common in houses. The fruiting bodies appear in Germany from July to September.
Dissemination
The species is widespread in the Mediterranean to temperate regions in Europe and North America. In North America, the distribution area is in the south, especially in Florida. In Europe, the bronze Röhrling occurs in the area of distribution of oak and beech. In Germany, it is scattered in the south to find rare in the north.
Endangering
Due to the growth in heat- favored, older oak and beech forests and the very scattered occurrence, often only individual fruiting bodies, the Bronze Röhrling is in Germany near threatened, in Bavaria, he is considered endangered. It is a protected species and can not be collected. Therefore, the type of the German Society for Mycology 2008 was elected the year mushroom. For a species of the genus Boletus was named the mushroom of the year after the Satan - Röhrling for the second time.