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17-05-2016 14:15

Gernot Friebes

Hi,I'm looking for some help with this species fou

17-05-2016 13:12

Castillo Joseba Castillo Joseba

Discos de 1 mm. de diametro,  creciendo en la cor

16-05-2016 18:18

Lothar Krieglsteiner Lothar Krieglsteiner

... collected in Switzerland, on resin of Picea. W

14-05-2016 23:44

Stip Helleman Stip Helleman

Dear all and especially Christian,I found this one

13-05-2016 22:06

Bernard CLESSE Bernard CLESSE

Bonsoir à tous,Hier, j'ai trouvé dans une prairi

16-05-2016 16:32

Castillo Joseba Castillo Joseba

En pila de abetoAlguina sugerencia?Joseba

18-08-2015 22:36

Elisabeth Stöckli

Bonsoir, Trouvé au bord d'un ruisseau, sur tiges

16-05-2016 16:57

Castillo Joseba Castillo Joseba

Alguien dispone de información sobre los datos mi

16-05-2016 16:36

Castillo Joseba Castillo Joseba

Sobre tierra en AbetalEjemplares grandes  alguno

16-05-2016 15:43

Enrique Rubio Enrique Rubio

I'd like your opinion on this Seynesia (¿?) speci

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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