Fungus
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Everything posted by Fungus
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Sean, In China and Japan, i.e. in eastern and south-eastern Asia, Ganoderma sinense, G. neo-japonicum and G. tsugae are indigineous annual species found in the wild and/or cultivated on wood for the Chinese herbal pharmacy as Reishi or Ling Zhi.
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Sean, So you're 100 % sure it's the first find of R. ulmarius on Aesculus in Europe without microscopical check ?
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the body language of Decay, The Delights of D
Fungus replied to Tony Croft aka hamadryad's topic in Fungi Pictures
Matt, I. cuticularis on branches ? -
Tis the season to see Fungi, fa la la la la....
Fungus replied to David Humphries's topic in Fungi Pictures
No, I only know them from pictures. -
Sean, According to Ryvarden & Gilbertson, this would be a first European finding of R. ulmarius, which (normally) is a root (plate) and buttresses rotter (of Ulmus), in a cavity high up the trunk of an Aesculus, while one of its look-a-likes, especially as young brackets, Spongipellis spumeus (photo), predominantly lives in cavities of horse chestnuts, so to be 100 % sure, a microscopical check up and documentation of material in a herbarium is necessary. ---
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David, It certainly is a Cantharellus, probably C. tubaeformis. Being an ectomycorrhizal symbiont, fruiting on an oak stump is only possible if the mycelium is still in contact with intact and living (secundary) roots, like f.i. happened when the wood of Q. rubra still was used by the Dutch bakers for their ovens and the coppices regenerated roots after they had been cut for this purpose, which set backwards the "order" of succession to an earlier stage.
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Tis the season to see Fungi, fa la la la la....
Fungus replied to David Humphries's topic in Fungi Pictures
David, Polyporus leptocephalus being P. varius ? -
On oak : so the blackish layer is not a fungus, but (peeling off) blackened bark with Chondrostereum purpureum fruiting on it.
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No, the roots grow "backwards" from the cambium and provide the branches growing on the outside or on top of the (pollarded) tree with moisture and nutrients from the decayed wood.
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Last year's rotting fruitbodies of a fungus with gills, could be anything ranging from Armillaria mellea s.l. (white spores) to Gymnopilus junonius (brown spores).
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Jonathan, Dry brown or cubical heart rot : Laetiporus sulphureus Moist to dry brown rot of annual rings : Fistulina hepatica Combination of white and soft rot : Inonotus dryadeus
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Tony, Daedaleopsis confragosa causes a simultaneous white rot, Inonotus hispidus a combination of white and (often brown coloured) soft rot. Photo : D. confragosa (bottom right) & I. hispidus (top left) on Sorbus intermedia. ---
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Janey, Do you know which pathogen causes the basal canker in both tree species, a bacteria or a (micro)fungus ?
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For the differences between Armillaria rhizomorphs and secundary roots, see my album : Rhizomorphs Armillaria. And this diameter secundary roots even makes colonizing and fruiting from the roots by ectomycorrhizal symbionts like Russula olivaceoviolascens possible, as is documented in the photo of three fruitbodies growing at 2 metres height on top of a pollarded willow. ---
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And you can add Bjerkandera adusta to this on the second (together with T. versicolor in the middle) and third photo, the annual bracket fungus, on the mycelium of which Trametes gibbosa lives as a parasite.
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Gary, Are you sure it was an Armillaria rhizomorph ? IMO it could just as well be secundary roots formed by the tree itself penetrating and "tapping" the rotten wood, a phenomenon which often is found in hollow or pollarded willows.
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For what purpose would squirrels damage a tree to such an extent ? Could it not have been a strike of lightning, which caused this ?
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There are two very nice and friendly Fung ladies living in my garden, asking Spidy's and Monkey's permission to join the just for fun - Fung party under their guidance and protection.
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Kretzschmaria transmission via root contact?
Fungus replied to KinlossRich's topic in Tree health care
Rich, 1. As far as I know, there is no reliable research proving the mycelium of K. deusta is capable of transmission to not yet infected, but damaged or not well protected (Tilia : ectomycorrhizae) tree roots of close to an infected tree standing trees by root-root contact. Normally transmission to roots from other trees takes place in a much better protected form, like f.i. melanine covered rhizomorphs of Armillaria, then through the very vulnerable hyphae of the mycelium of a pathogen. So if you would be able to reliably document (microscopical, second opinion by an expert) root-root transmission by the mycelium, you would be the first to provide evidence of the possibility of root-root transmission. 2. That's correct as far as decay detection of K. deusta on Tilia from the outside (f.i. Picus) is concerned, not if f.i. a resistograph is used. -
You're right, it never is natural behaviour of an adult dog. The dog must have been taught and started off by the owner to display this kind of behaviour, just as an Alsatian was incited to vandalize this Taxodium by its Dutch female owner.
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Jim, No Naan bread, but annual brackets of the "Chicken of the Woods" (Laetiporus sulphureus), which causes a brown rot of the central wood column of the tree. Depending on the tree species (which in this case is ?) and also taking the large wound close to the brackets into consideration, the prognosis for the tree ranges from detrimental on the short run to not that problematic on the long run.
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Rob, You're right on this , it's Xylaria hypoxylon, a "year around" fruiting ascomycete, which in its imperfect phase is producing whitish conidiospores. Xylaria's normally live on/of dead wood or other substrates, in which the mycelium causes a superficial soft rot, on or partially immersed in the forest floor. In this case you have documented an exception, I have only once seen before by X. polymorpha on a wound on the trunk of a beech at two meters height.
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Rob, The fungus on the tree, of which you're holding a specimen in your hand, is Daldinia concentrica (see the concentric silvery and black rings inside), a soft rot causing asco- or pyrenomycete, which mostly grows on Fraxinus.
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Next time please more information on the tree species. 1. If f.i. on Populus or Fraxinus, possibly Kretzschmaria deusta and Chondrostereum purpureum. 2. If on oak, probably Inonotus dryadeus, if on other tree species, probably I. hispidus.
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1. Laetiporus sulphureus 2. Pleurotus pulmonarius 3. Polyporus squamosus
