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Fungus

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Everything posted by Fungus

  1. Fungus
    1. The melanine plaques shield off and protect the hyphae of the Armillaria mycelium against acids and parasites while decomposing (white rot) dead wood. 2. You should have looked at the colour of the spores, Armillaria = white, Pholiota = brown. 3. Because only Ganoderma species cause white rot with selective delignification.
  2. Fungus
    It's the only rhizomorphs producing macrofungus protecting its hyphae with self produced melanine layers (plaques) against acids and attacks of other parasites, that is capable of detecting damaged roots at a distance of up to one metre and after detection growing in a straight line towards the roots at a spead of up to one metre a year. And that's why Armillaria ostoyae is the largest living organism in the world.
  3. Fungus
    It is, but its rhizomorphs can only detect the roots to colonize from a distance by growing hormones secreted by damaged roots.
  4. Fungus
    Nothing, as long as there are still rhizomorphs of the Honey fungus present/active and the new plants are coming from the nursery with damaged roots.
  5. Fungus
    1/2/5/6/7/8 : Macrolepiota rachodes 3 : Clitocybe nebularis 4 : Coprinus comatus 9/10 : Lepista nuda All saprotrophic, none ectomycorrhizal.
  6. Fungus
    ... is L. perlatum.
  7. Fungus
    Tobias, Annual and with pale brown spores 7-8.5 x 5-6.5 µm ? If so, Inonotus dryophilus, also known from living oaks from a few localities north of Stockholm. And the Ekticka doesn't resemble the perennial Phellinus robustus, but looks much more like the annual Hapalopilus ritulans.
  8. Fungus
    Baxter, The blushing is caused by the exposure to oxygen of the same enzyme that turns the flesh of the Blusher (Amanita rubescens) red or makes Stereum rugosum and S. gausapatum "bleed" when scratched.
  9. Fungus
    Ben & Paul, 1. Yes, in that order, where I find the resistograph to be the most precise instrument. 2. That depends on the specific circumstances (risk management) and on the conditions (stability) of the trunk, the buttresses and the roots.
  10. Fungus
    1. The black layer could also be melanine plaques of Armillaria. 2. Is there any proof of the presence of Ganoderma species then ? And could the clusters of red "drops" in the last photo be Nectria peziza ?
  11. Fungus
    Ben, Precede, co-incide and/or succeed on living trees, but always with distinct mycelial territories. And after the tree has died, necrotrophic parasitic Armillaria species always follow the biotrophic parasitic P. squarrosa.
  12. Fungus
    I think it's all Tricholoma scalpturatum (= T. argyraceum) of which the flesh turns yellow when bruised.
  13. Fungus
    Tony, 1. Lactarius species (whitish milk) ? If not, Clitocybe gibba. 2. Probably a Cheilymenia/Coprobia species such as C. granulata. 3. Might be Psathyrella spadicea.
  14. Fungus
    David, 1. What in your opinion is 6. M.v. then ? 2. ... or (also) fruiting as a saprotrophic from buried dead wood/roots of trees that were there before ?
  15. Fungus
    ... and all other deciduous and coniferous tree species associating with this not only in the pioneer, but also the final phase of the tree's life cycle present generalistic ectomycorrhizal symbiont.
  16. Fungus
    The second has rusty brown spores, so it's not a Laccaria (white spores), but Gymnopilus sapineus.
  17. Fungus
    Sloth, Yes, Flammulina velutipes and Panellus serotinus.
  18. Fungus
    Sloth, Although Pleurotus ostreatus mostly is a saprotrophic wood decomposer, in wintertime it can also be a weak parasite, because the tree is in rest and can't defend itself against the mycelium invading living tissue.
  19. Fungus
    Owen, Pleurotus ostreatus.
  20. Fungus
    1. There's a puzzle, looks like nothing I'm familiar with, so you should have a specialist have a go at it ! And he/she should also have a look at 2 and 3, because : 2. this could be a Hohenbuehelia species, like H. repanda and 3. this might be Hohenbuehelia grisea or Pleurocybella porrigens. 4. = Leucoagaricus holoceus 5. Clitocybe nebularis could be right.
  21. Fungus
    First - if possible - you'll have to identify the pathogen, to be sure of what type of woodrot you're looking for in/on the roots and in the buttresses and/or trunk base : - white rot (Heterobasidion annosum, Pholiota squarrosa, Grifola frondosa, Armillaria species, Xerula radicata, Abortiporus biennis, etc. or Inonotus dryadeus and M. giganteus combined with soft rot of living tissue), - white rot with selective delignification (Ganoderma species), - soft rot (K. deusta, M. giganteus and Inonotus dryadeus in living tissue) or - brown rot (Fistulina hepatica, Phaeolus schweinitzii, Sparassis crispa, etc.). And with airspading alone, one can't assess woodrot inside the tree roots or buttresses.
  22. Fungus
    If so, so it's Inonotus radiatus.
  23. Fungus
    Graham, There needs to be no contact by root grafts to translocate the round up, connections with shared mycelia (or rhizomorphs) of ectomycorrhizal symbionts (or Armillaria) will be sufficient to reach the roots. And the yellow fungus is Stereum hirsutum, a saprotrophic pionier decomposing already dead cambium and throwing the bark afterwards.
  24. Fungus
    Looks like an Inonotus species to me, could be I. cuticularis or I. radiatus.
  25. Fungus
    QUOTE=hamadryad : 1. A.a. ? 2. L. n. : 3. C. n. : 4. A. o. : probably 5. T. v. : 6. M. v. ?

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