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Podospora (?)

  • Hello!


    Sorry for the wrong language, but unfortunately I'm only fluent in English. I'm very new to Coprophilous fungi but I hope to learn much more.


    I found this fungus growing on Deer dung that has been incubating for 2.5 weeks now, collected in Berkeley, California (USA). When I saw the spore appendages I thought that meant it was Podospora, but now I'm not sure it isn't Arnium (or even something else in Sordariales)!


    Asci appear to contain more than 64 spores (128?), And each spore is about 20 µm long. Perithecium opening is small, black, and covered in spikes.


    Any advice on how to best get fungi like these to genus would be appreciated. From there I hope to use the available species keys to work it down, but it's hard to do that without knowing the genus!


    thanks so much,

    Jonah B.

  • Beorn

    Hat das Thema freigeschaltet
  • Hello and welcome to this forum, Jonah!


    You show us a Podospora.

    The spores are typical two-celled with a brown upper cell an a hyalin pedicel.

    With haired perithecia and 128-spored asci this could be Podospora setosa or P. bifida.


    For P. setosa both the asci and the pedicel are to broad, so that I think that your species should be Podospora bifida.

    The upper gelatinous cauda has to be bifid at the base and I think this can we see at your last photo. I have marked it in the following.



    I hope I could help you a little bit.


    Greatings, Nobi

    Hier geht es zu meinen Themen.

    -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

    Chips: 88 nach diversen Verlusten - 10 APR 2019 = 78 + 6 (150er Prämie APR 2019) = 84 -10 APR 2020 = 74 - 5 Macrocystidia-Wette = 69 - 10 APR 2021 = 59

  • Thank you Nobi!


    I was hoping to get better photos of the bifid caudae to post here but it seems that the fruits appear and disappear pretty quickly. A few days later I found some but all the asci were far too immature.


    Today I found some Podospora with mature spores, but found it difficult to pop the perithecia while keeping the asci intact so that I could count the spores. Do you have any tips on how to do this?


    The perithecia on these are still hairy, and the asci still seem to have 128(?) spores (definitely more than 64).

    The spores are also the same size as before. However, using Doveri's key the spores seem to match P. setosa better than P. bifida – they seem to lack a gelatinous sheath and I could only see 1 tail on all that I observed.


    Do you agree with this assessment? If so, do you think it's likely that the ones before were also P. setosa, or that both species were present in the dung?


    thanks again,

    Jonah B.


  • Nice new pictures, Jonah!:thumbup:

    This is without a doubt Podospora setosa.

    You can compare with this nice portrait from our member Thorben.

    If so, do you think it's likely that the ones before were also P. setosa

    Yes, I think so.

    It was a misinterpretation of the upper cauda by me.


    Regards, Nobi

    Hier geht es zu meinen Themen.

    -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

    Chips: 88 nach diversen Verlusten - 10 APR 2019 = 78 + 6 (150er Prämie APR 2019) = 84 -10 APR 2020 = 74 - 5 Macrocystidia-Wette = 69 - 10 APR 2021 = 59

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