Brick-red coal crust

from Wikipedia, the free encyclopedia
Brick-red coal crust
Brick-red coal crust (Hypoxylon rubiginosum)

Brick-red coal crust ( Hypoxylon rubiginosum )

Systematics
Class : Sordariomycetes
Subclass : Xylariomycetidae
Order : Xylariales (Xylariales)
Family : Wooden club relatives (Xylariaceae)
Genre : Coal berries ( hypoxylon )
Type : Brick-red coal crust
Scientific name
Hypoxylon rubiginosum
( Pers. ) Fr.

The brick red cabbage crust ( Hypoxylon rubiginosum ) is a fungal art from the family of the wooden club relatives (Xylariaceae).

features

The fruiting bodies (stroma) are often irregularly spread over a large area on the substrate. They form a thin crust that can be up to 30 cm long, up to 10 cm wide and 1 to 2 mm thick. The surface is wavy and often furrowed. Due to the perithecia mouths (ostioles), which do not protrude above the surface of the stroma, it appears a bit rough. The color ranges from brick red to red to purple brown; in old age they are tinted dull black.

The anamorphic is found on the edges of young stroma or in older specimens. It is pale yellow-brown to honey-colored and velvety. The conidia are ellipsoidal and yellowish in color. They measure 5–6 × 3–4 µm.

The spores are broadly elliptical to bean-shaped and measure 7–13 × 3–6 µm. They have a drop of oil and a straight column of germs the length of a spore. The apical ring of the asci is amyloid .

  • Young stroma of the brick-red coal-crust

  • Old brick-red coal crust stromata

Species delimitation

The brick-red coal crust can be mistaken for a bark mushroom. The perithecia become visible with a magnifying glass or by cutting . Other similar types of coal berries ( Hypoxylon ) are difficult to distinguish.

Ecology and diffusion

The brick-red coal crust can be found all year round on debarked, rarely barked hardwoods. The populated substrates are mostly maples and ash trees .

The fungus can be found in the Holarctic in the temperate regions. It is widespread in Germany.

supporting documents

literature

  • Hans E. Laux, Andreas Gminder : The great cosmos mushroom guide. All edible mushrooms with their poisonous doppelgangers. Franckh-Kosmos, Stuttgart 2010, ISBN 978-3-440-12408-6 , p. 634.

Individual evidence

  1. ↑ a b c d e Hypoxylon multiforme . Pyrenomycetes from southwestern France

Web links

Commons : Brick Red Coal Crust ( Hypoxylon rubiginosum )  - Collection of images, videos and audio files