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Fungus

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Everything posted by Fungus

  1. Fungus
    Rob, The black dots are the ascomycete teleomorphs of a powdery mildew. Could f.i. be Microsphaera alphitoides.
  2. Fungus
    Tobias, 1. No. 2. Yes.
  3. Fungus
    Mark, Was it attached to the wood or laying on top and free from it ? If it was free, it might be "star jelly" or heron's or polecat's vomit after they have been eating (female : Falopian tubes) frogs.
  4. Fungus
    Another good question : what species with what types of wood rot (temporarely) increase flexibility and what species with what types of woodrot (temporarely) change the T/R or slenderness ratio in what other way and with what consequences for your diagnosis of stability of the tree and your tree management options ?
  5. Fungus
    Chicken of the Woods (Laetiporus sulphureus).
  6. Fungus
    Tony, No, only as seedlings, Salix is associated both with endo- and pioneer ectomycorrhizal symbionts, full grown willows are associated with ectomycorrhizal macrofungi, some of which are exclusive for Salix and part of the tree species specific ecosystem such as Russula subrubens, Tricholoma cingulatum and Cortinarius urbicus.
  7. Fungus
    Tom, 1.Yes, it is, so how about Gymnopilus sapineus then ? 2. .
  8. Fungus
    Tom, 1. Because of the absence of mycelial felts, which are indicative for Fomes, no, as both Phellinus and Fomes are simultaneous white rotters. 2. Might be, might not be. Anyway, this definitely is Fomes fomentarius.
  9. Fungus
    Yes, I do . I've often "used" Vordenstein (Brasschaat) for workshops on mycology and trees for Dutch and Belgian arborists or tree officers.
  10. Fungus
    Tom, 1. Yes, in this case one mostly refers to the fungus as Ganoderma cf. lipsiense or as Ganoderma lipsiense s.l. (including G. australe). 2. Nice documentation . Will you microscopically check the spore size too and also perform the "striking a match near the yellow sub-surface layer" test ?
  11. Fungus
    1. No, we don't, but it's quite obvious why you think we do and/or need us to. 2. Why post your snappy formulated hypothesis if you're not interested in a critical review by professionals and wanted to fell the tree regardless of any comment on your "diagnosis" in the first place ? 3. I will from now on, realising there's nothing to be gained for any of us in investing in "enlightening" you in the field of forest ecology, soil food webs, mycology and tree species specific ecosystems. 4. Why repeat all of this without answering my question concerning the last sentence ?
  12. Fungus
    Although the poor quality (and magnification) of the photo's makes it hard to say something sensible, the first and last two photo's could show melanine plaques, in the first photo of either the necrotrophic parasitic Armillaria mellea or A. ostoyae or of the saprotrophic A. lutea (= A. bulbosa) hollowing the tree inside out and in the last two photo's of either A. mellea or A. ostoyae decomposing dead wood outside in after the tree died. The second and third photo could show melanine plaques, but one of the many black crusts forming ascomycete Sphaeriales, such as Diatrype stigma, seems to be more likely. Anyhow, in all cases : microscope.
  13. Fungus
    1. How ? I thought Phytophthora was a soil oomycete/pathogen invading the tree by its roots. 2. Any thoughts or suggestions on other treatment programs ?
  14. Fungus
    See Phytophthora : ELISA test.
  15. Fungus
    Getting shut down meaning the mycelium still is in contact with living tissue while (panic) fruiting from dead wood, which is a characteristic of biotrophic parasitic Ganoderma's. Having been shut down meaning fruiting from dead wood, which is a characteristic of necrotrophic parasitic Ganoderma's.
  16. Fungus
    In the U.K. yes, on the continent no, see my post on Ganoderma carnosum.
  17. Fungus
    Tony, The answer is given in the question : "when it's getting shut down", not after it has been shut down.
  18. Fungus
    ... they are, see my post on myxomycetes.
  19. Fungus
    The investigation being performing an ELISA field test ?
  20. Fungus
    John, This is the transitional phase from plasmodium to aethalia of a myxomycete or slime mould, because of the purplish colour of the remaining bits of plasmodium, it might be/become an Arcyria species.
  21. Fungus
    Tony, Bit of a problem though, the perennial G. pfeifferi also is biotrophic parasitic .
  22. Fungus
    Davy, This definitely is an annual Ganoderma species, but which species can only be determined by using a microscope.
  23. Fungus
    1. This looks like panic fruiting by the biotrophic parasitic G. australe. 2. Are you sure it was not Phellinus robustus at this height ?
  24. Fungus
    Tom, , what tree species was the monolith with the Fomes with retracting tube layers ?
  25. Fungus
    Tom, Yes I can, as long as it has not been microscopically identified by the size of the spores. With fungi, there's always an exception to the rules we make up for them . F.i. : G. australe is documented to be (rather poorly) decaying dead wood in vitro (Schwartze) and recently one has succeeded in having the biotrophic parasitic Grifola frondosa fruiting from dead oak wood.

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