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24-07-2024 13:19
Thomas FlammerI am looking for a PDF of the above article. Thank
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21-07-2024 10:13
![Thierry Blondelle](/uploads/user_vgn/-0211.jpg)
Bonjour,Récolte sur branchette de Castanea dans u
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21-07-2024 10:28
![Alan Rockefeller](/uploads/user_vgn/-0063.jpg)
Which Peziza did I find on horse dung in Humboldt
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19-07-2024 11:08
![Miguel Ãngel Ribes](/uploads/user_vgn/Ribes-0001.jpg)
Good morningThis Scutellinia from July 9 grew at 1
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21-07-2024 06:23
Masanori KutsunaDear all, Does anyone have these papers and send
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08-07-2024 23:34
Villalonga PacoSmall Scutellinia growing in garden soil (calcareo
What is this pyrenomycete causing white lesions in hardwood bark?
Ethan Crenson,
05-05-2021 22:25
Hello all,
In a New York City cemetery last weekend I found a small hardwood branch with the bark beginning to fall away. In the bark are stout black pyrenomycetes in clusters, which seem to be causing white lesions in the bark and wood beneath. The pyrenomycetes can be quite large (by pyrenomycete standards). In the images of the 3 sectioned perithecia, the large one is 1mm wide by 1.5mm tall. It is 2mm tall when measuring from the base to the tip of the neck.
Asci: 153-168 x 7.5-10µm. The spore bearing part 105-125µm. IKI+, the apical plug about 2.5 tall x 3µm wide when mature; much longer in immature asci.
Spores: 13-14 x 6-7µm, brown, ellipsoid to inequalateral ellipsoid, guttulate, usually with one large guttule at the center, with a very inconspicuous germ slit less than spore length.
Can anyone help me put a name on this?
Thanks in advance.
Ethan