Identification: Know what this is?

Discussion in 'Fungi, Lichens and Slime Molds' started by Sadie, Jan 16, 2024.

  1. Sadie

    Sadie New Member

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    I took this pic in Durban, South Africa. The fungus is approximately 30cm across.
     

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  2. Frog

    Frog Generous Contributor Forums Moderator 10 Years

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    Hi @Sadie - thanks for posting your lovely find!
    This is in the genus Ganoderma, and in a subset called "laccate" which basically means these are the shiny top conks.
    I'm not sure which species ... I'll take a look in my S.A. region resources and see if it jumps out.
    Sometimes tree type (hardwood or conifer, or even a specific type) can be helpful, if you know what it was.
     
  3. Frog

    Frog Generous Contributor Forums Moderator 10 Years

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    Below is a Checklist of Ganoderma in South Africa i found in my files
    ... I realize you'd prefer an ID over a list, but I'm in the pacific northwest of North America, so most of my knowledge and resources are for my region
    I don't have any resource that offer photos and species descriptions for SA

    Your list of options is much shorter than this, partly as some of these will be non-laccate / non-shiny, and some will be visibly very unlike yours.
    1. annulare;"(Fr.) Gilb.";PREM;;
    2. applanatum;"(Pers.) Pat.";PREM;Yes;
    3. aridicola;"J.H. Xing & B.K. Cui";;;"Xing et al. 2016"
    4. austroafricanum;"Coetzee
    5. chilense;"(Fr.) Pat.";PREM;;
    6. colossus;"Fr.) C.F. Baker";PREM;;
    7. cf. cupreum;"(Sacc.) Bres.";;;"Tchotet et al. 2019"
    8. curtisii;"(Berk.) Murrill";PREM;;
    9. destructans;"M.P.A. Coetzee
    10. dunense;"Tchotet
    11. eickeri;"Tchotet
    12. eminii;Henn.;PREM;;
    13. cf. cupreum;"(Sacc.) Bres";;;"Tchotet et al. 2019"
    14. enigmaticum;"M.P.A. Coetzee
    15. fulvellum;Bres.;PREM;;
    16. hildebrandii;Henn.;PREM;;
    17. knysnamense;"Tchotet
    18. lucidum;"(Curtis) P. Karst.";PREM;Yes;
    19. mastoporum;"(Lév.) Pat.";PREM;;
    20. mollicarnosum;"(Lloyd) Sacc. & Trotter";PREM;;
    21. nigrolucidum;"(Lloyd) D.A. Reid";PREM;;
    22. oerstedii;"(Fr.) Torrend";PREM;;
    23. oregonense;Murrill;PREM;;
    24. oroflavum;"(Lloyd) C.J. Humphrey";PREM;;
    25. resinaceum;Boud.;PREM;Yes;"Tchotet et al. 2019"
    26. tornatum;"(Pers.) Bres.";PREM;;
    27. zonatum;Murrill;PREM;;
     
  4. Sadie

    Sadie New Member

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    Thank you Frog! Even narrowing it down this much is already a huge help, I had no idea where to even begin. I'll take it from here with researching the identification, and let you know when I've worked it out. The really interesting thing about this particular specimen, aside from it's huge size, is that it wasn't growing against a tree at all. It actually grew out of a cinderblock in a retaining wall.
     
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  5. Sadie

    Sadie New Member

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    After careful checking, I'm pretty sure that the specimen is Ganoderma lucidum. Which is even more wild, because that's not a native species to South Africa at all, apparently! I hope it's not too invasive.
     
  6. vitog

    vitog Contributor 10 Years

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    There must be some damp wood behind the cinderblocks. Ganoderma only grows on wood.
     
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  7. DerekK

    DerekK Active Member

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    I checked iSpot to see the prevalence of Ganoderma Lucidum in Africa generally and South Africa specifically and see that the latest observation is a picture of the same fungi in the same cinder block wall. Confirmed on iSpot as Ganoderma Lucidum.
    observations
    And then came across this article describing G.lucidum as native to Kenya, Tanzania and Ghana (perhaps it has expanded its range along with cultivated gardens into South Africa?). Quite fascinating to see the potential of this fungi in treatment of many challenging diseases.
    PMC9441938
     
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  8. Frog

    Frog Generous Contributor Forums Moderator 10 Years

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    Ah good sleuthing Derek, I see what you mean! Not only same mushroom but same photo!
    Sadie you might want to contact ClarkKellison and ensure they give you photo credit.

    upload_2024-1-17_13-14-25.png
     
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