Chalciporus piperatus
Pepper Boletus ( Chalciporus piperatus )
The Pepper Röhrling or Peppery Zwergröhrling ( Chalciporus piperatus, Syn Boletus piperatus ) is a species of fungus in the family Dickröhrlingsverwandten ( Boletales ). The yellow- brown fungus is often found in coniferous forests and is considered a moderate edible mushroom.
- 6.1 Notes and references
- 6.2 External links
Features
Macroscopic characteristics
The brilliant and often cracked hat skin is slightly sticky and slimy in the rain. The hemispherical or cushion-like hat measures 2-11, in exceptional cases, up to 11 cm. He has a cinnamon - or orange - brown color. The orange-brown tubes are also grown on a stick and sometimes run slightly reduced it. The square tube openings or pores become smaller brim and crowded; they are darker than the hat. The spore powder is yellowish - brown. The stem of the pepper - Röhrlings is 3-6 cm long and 5 mm thick, smooth, full and often curved. It has the color of the hat, the base is, however, lemon yellow, the mycelium strongly developed is yellow. The fungus has thin, soft meat. The hat is burgundy, in contrast, stalk lemon yellow. It has a pleasant smell, but tastes very spicy and reminiscent of pepper. The pores and the stem respond to potassium with a deep brown color.
Microscopic characteristics
The spindle-shaped spores are 8-11 × 3-4 micrometers in size.
Artabgrenzung
The Pepper Röhrling be confused primarily with the edible cow Boletus ( Suillus bovinus ); However, the latter is larger and yellow, also the strong pungent taste him missing. The Auburn larch boletus ( Suillus tridentinus ), which is also similar to the pepper Boletus, is found only among larches and has a ringed stem.
Ecology, phenology and distribution
The Pepper Boletus grows from July to October in the coniferous forest and rarely in deciduous forest, preferably acidic and calcareous soils. The species is widespread in Europe and North America; But he was found even in Tasmania, where he grew up under the Tasman slip beech ( Nothofagus cunninghamii ). Also in Australia and South America before he comes now in softwood plantations.
System
The Classification of Pepper Röhrlings in the genus Chalciporus is controversial. As represented in the genera Suillus and Xerocomus some mycologists view, this would be better all grouped under the genus Boletus.
Even within the genus see some researchers some types only as subtypes of pepper - Röhrlings. The will, however, on the other hand maintained that the substances responsible for the sharp taste found only in C. piperatus.
For the pepper Boletus following varieties have been described:
- Chalciporus piperatus var amarellus ( Quél. ) Pilát & Dermek 1974
- Chalciporus piperatus var hypochryseus ( Sutara ) Klofáč & Krisai 2006
Importance
The sharp taste of pepper - Röhrlings lost largely in drying or cooking the fruit body. For the sharpness of the alkaloids Chalciporon ( C16H21NO ) Chalciporonypropinat, Isochalciporon and Dehydrochalciporon that give the species its name Chalciporus care.