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21-03-2026 15:13

Lepista Zacarias

Hello everyone, Does any one know of any literatu

20-03-2026 12:53

Stefan Blaser

Hello everybody, In the field, from distance, my

20-10-2017 09:23

Garcia Susana

Este otro crecía en el mismo trocito de madera qu

20-03-2026 16:16

Edvin Johannesen Edvin Johannesen

These 0.5 mm diam. acervuli were breaking through

19-03-2026 19:34

Filip Fuljer Filip Fuljer

Hello everyone,a few days ago I collected this str

19-03-2026 18:25

William Slosse William Slosse

Good evening everyone, On 18/03/26 I found a few

17-03-2026 10:09

François Freléchoux François Freléchoux

Bonjour, Voici la description rapide d'un petit d

19-03-2026 15:58

Stefan Blaser

Hello everybody, I hope for some hints... Macro:

19-03-2026 17:50

Enrique Rubio Enrique Rubio

Hi to everybodyThese thiny, blackish pseudothecia

18-03-2026 13:09

Khomenko Igor Khomenko Igor

I recently examined Celtis occidentalis branches

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Unknown Xylariaceae
Gernot Friebes, 17-05-2016 14:15
Hi,

I'm looking for some help with this species found in eastern Austria (Burgenland) on a decorticated branch of an unknown tree (could be Fraxinus). I'm not even entirely sure which genus this might belong to... The perithecia are not imbedded in a dark stromatic tissue but rather immersed in the wood under the dark surface of the fungus. The ascospores are dark brown, without a sheath or appendages, with a straight, spore-length germ slit on one side of the spore, and measure about 11–15 x 5–6 µm (they are quite variable though). Thanks for any ideas!

Best wishes,
Gernot

(macrophotos are not mine)
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Jacques Fournier, 17-05-2016 15:14
Jacques Fournier
Re : Unknown Xylariaceae
Hi Gernot,
this must be Lopadostoma pouzarii Granmo & Petrini, not a good Lopadostoma but a genus is to be found to accommodate it.
Not host-specific but occurs preferentially on Ulmus in my region.

Cheers,

Jacques
Gernot Friebes, 17-05-2016 15:26
Re : Unknown Xylariaceae
Hi Jacques,

great, thank you! That's interesting because when I studied the material I thought that the microscopic characters indeed resemble Lopadostoma but of course the macroscopy doesn't fit.

Now I would be very interested in the original description of this species which I do not have, unfortunately. Do you maybe have it as a PDF, or perhaps someone else?

Granmo, A.; Petrini, L.E. 1996. A new species of Lopadostoma, and the anamorph of Biscogniauxia cinereolilacina. Mycologia Helvetica. 8: 43-50.

Best wishes,
Gernot
Jacques Fournier, 17-05-2016 15:33
Jacques Fournier
Re : Unknown Xylariaceae
the paper is available through Ascomycete.org digital library.
Gernot Friebes, 17-05-2016 16:26
Re : Unknown Xylariaceae
I forgot to check that. Thank you again. :-)

Best wishes,
Gernot