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25-01-2026 23:23

Tomaz Vucko Tomaz Vucko

Hello! I found this species that resembles Delitsc

06-02-2026 01:14

Tomaz Vucko Tomaz Vucko

Hello!How would you name this species? Most perith

04-08-2014 17:35

Leandro Sánchez Leandro Sánchez

Sur branche de feuillus, jusqu'à 22 mm diamètre,

05-02-2026 15:07

Vasileios Kaounas Vasileios Kaounas

Found on a fallen needle of Pinus halepensis, diam

05-02-2026 06:43

Stefan Blaser

Hello everybody, Any help on this one would be mu

18-08-2025 15:07

Lothar Krieglsteiner Lothar Krieglsteiner

.. 20.7.25, in subarctic habital. The liverwort i

02-02-2026 21:46

Margot en Geert Vullings

On a barkless poplar branch, we found hairy discs

02-02-2026 14:55

Andgelo Mombert Andgelo Mombert

Bonjour,Sur thalle de Lobaria pulmonaria.Conidiome

02-02-2026 14:33

Andgelo Mombert Andgelo Mombert

Bonjour,Sur le thalle de Peltigera praetextata, ne

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Durella sp. ?
Maren Kamke, 01-01-2014 15:28
Maren KamkeHi again,
on the same piece of decidious wood on which the Phaeohelotium trabinellum grows are small redbrown apothecia. They are very small with 0,05 mm max, the turbinate apothecia are fleshcoloured to redbrown and become black with age.
Spores (6-10) 8,5 x 2,91 (2,5-3) µm, hyalin, 1-septate, already in the ascus. Asci 8-spores, biseriate, IKL negative, 52-54 x 6-9 µm with croziers. There are asci? which seem to have no spores and a somewhat purplebrown content which goes into the medium with KOH treatment. Paraphyses are septate and branched and apikal hooked, 1,5 µm.
My guess is Durella uncinata.
Thanks
Regards Maren
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Hans-Otto Baral, 01-01-2014 20:49
Hans-Otto Baral
Re : Durella sp. ?
Hi Maren

oh yes, this is my "Durella uncinata". Not often encountered.  We had it on Quercus, Fraxinus, Carpinus, Corylus, Alnus, and Tilia, but I think always on attached branches.

Did you look whether your wood is ring-pored? Then it could easily be determined.

Zotto
Maren Kamke, 02-01-2014 07:47
Maren Kamke
Re : Durella sp. ?
Hi Zotto,
I have no experience with microscopic wood-determination, but after comparing the image, I think it ist Alnus.
Regards Maren
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Hans-Otto Baral, 02-01-2014 10:06
Hans-Otto Baral
Re : Durella sp. ?
Sehr gut!

Yes, Alnus is probable. Did you also try a radial section? There you will see the perforations of the pores with many steps, see below

Zotto
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Maren Kamke, 02-01-2014 11:25
Maren Kamke
Re : Durella sp. ?
Ja, habe ich, die gezeigten Elemente sind da. Alnus ist in dem Gebiet auch häufig vertreten.
Liebe Grüße
Maren
Hans-Otto Baral, 02-01-2014 12:48
Hans-Otto Baral
Re : Durella sp. ?
Prima, danke!