Boletus calopus
Schönfuß Boletus (Boletus calopus )
The Schönfuß Boletus or Dickfuß Boletus (Boletus calopus ) is a type of fungus of the genus Boletus.
Features
The Schönfuß Boletus forms in pileus and stipe articulated, large fruit body with a Hutbreite of 5-20, in exceptional cases up to 25 cm. The hat is hemispherical to cushion -shaped and is not flat even in older specimens, the staining of Hutoberseite can from mud brown to milky coffee -color, also pale to brownish gray, more rarely reddish to olive-brown specimens are possible. Jung is the hat surface finely velvety- tomentose, she is bald in old age. The stem is about 5-15 cm long and 1-4.5 cm thick, it may be slim to thick, walzig, clavate or bulbous. At the top he is colored in yellow, under this section, a striking crimson zone closes, which may fade due to sun exposure, the stem base is brownish in color. The stem is covered with a relatively coarse, pale to brownish yellow network. The tube layer is yellow and takes at Sporenreife soon a Olivton on, the pores have the same color, they turn sharply to pressure to blue. The same blue color Amylon reaction also shows the otherwise yellow in the stem base often reddish purple flesh that immediately shows a strong blue color upon rupture or bleed. The meat tastes very bitter and has no specific odor.
Ecology
Like all Boletus also forms the Schönfuß Boletus mycorrhizal with trees, can be associated with it with both deciduous and coniferous trees. For Baden- Württemberg common spruce and beech were found as the most frequent partners trees, followed by pine trees. According to the type of mycorrhizal partner who Schönfuß Boletus occurs in spruce - fir forests and various beech forests. Respect to the ground his claims are low, and sour are compared with neutral and alkaline soils preferred. The species is distributed mainly in the higher altitudes of the mountains, at lower altitudes it is very rare.
Dissemination
There is evidently a European type of fungus that is spread from the Mediterranean to northern Europe, but is mainly found in the temperate zone and montane areas preferred. In Germany it is out on the red list in the risk group 3.
Importance
The Schönfuß Boletus taste bitter and is considered slightly toxic, so it is out of the question as an edible mushroom.