Nordic porling

from Wikipedia, the free encyclopedia
Nordic porling
Climacocystis borealis 38653.jpg

Nordic porling ( Climacocystis borealis )

Systematics
Class : Agaricomycetes
Subclass : insecure position (incertae sedis)
Order : Stalk porlings (Polyporales)
Family : Tree spongy relatives (Fomitopsidaceae)
Genre : Climacocystis
Type : Nordic porling
Scientific name of the  genus
Climacocystis
Feces. & Pouzar
Scientific name of the  species
Climacocystis borealis
( Fr. ) Kotl. & Pouzar

The Nordic Porling or Northern Sponge Porling ( Climacocystis borealis , syn. Spongipellis borealis ) is a tree fungus from the monotypical genus Climacocystis . As a parasite, it causes simultaneous white rot in conifers. The short-lived fruiting bodies can be found in autumn on dying and dead tree trunks of spruce and fir trees, more rarely on deciduous trees.

features

Macroscopic features

The 5–15 cm wide, annual fruiting bodies are yellowish-white, 1–2 cm thick and have a sharp edge when fully grown. They often have a stem-like extension. The upper side is rough-felted to shaggy, on the underside there is the spore-forming fruit layer with 1–2 mm wide pores, some of which have uneven walls. When fresh, the fruit body is juicy and has an elastic, tough consistency. The flesh is yellowish-white and has radial fibers. When dry, you can see a two-layer trama (duplex trama) with a lower glassy, ​​cartilaginous layer and a thinner upper layer that appears spongy and white-yellow.

Microscopic features

The broadly elliptical spores are 4–6.5 × 3–5 µm in size and are hyaline and inamyloid . The cystids are spindle-shaped and thick-walled. The hyphae have buckles and are purely generative , this is called a monomitic trama.

Ecology and diffusion

Photo of a fruiting body between dead wood remains
Fruiting bodies, pitted on the upper side and with overgrown blackberry shoots on the left

The Nordic Porling grows saprophytically mainly on spruce and also on firs , on dead trees and stumps. Less common hosts are European beech ( Fagus sylvatica ) and oak ( Quercus sp.). Observations from North America report infested maples ( Acer spp.) And poplars ( Populus spp.). The fungus causes white rot by breaking down the lignin in the wood. The species has a Holarctic distribution, it also occurs sporadically in southwest Australia and Venezuela . In Central Europe it occurs frequently in the Alps and in the low mountain ranges. It is very rare in northern Germany and Denmark. It is often massive on windbreak areas.

swell

literature

Individual evidence

  1. ^ Synonyms of Climacocystis borealis . In: Species Fungorum . Retrieved December 8, 2012 .
  2. a b c d Hermann Jahn: The types of Porlinge I . In: Westphalian mushroom letters . tape 4 , no. 3 , 1963, p. 27-62 ( PDF; 2.41 MB ).
  3. a b c Svengunnar Ryman, Ingmar Holmåsen: Mushrooms . Bernhard Thalacker, Braunschweig 1992, ISBN 3-87815-043-1 .

Web links

Commons : Nordic Porling ( Climacocystis borealis )  - Album with pictures, videos and audio files