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01-06-2025 09:37

Charles Aron Charles Aron

Hi All, I found this Octospora growing with liver

05-07-2025 12:38

Åge Oterhals

I found this pyrenomycetous fungi in pine forest o

04-07-2025 20:12

Josep Torres Josep Torres

Hello.A fungus growing on the surface of a trunk o

20-06-2025 08:33

Josep Torres Josep Torres

Hello.Small, blackish, mucronated surface grains s

28-06-2025 16:00

Josep Torres Josep Torres

Hello.A tiny fungus shaped like globose black grai

04-07-2025 12:43

Castillo Joseba Castillo Joseba

me mandan el material seco de Galicia (España) 

03-07-2025 18:40

Castillo Joseba Castillo Joseba

me mandas el material seco de Galicia (España) re

03-07-2025 20:08

Francois Guay Francois Guay

I found this interesting yellowish asco growing on

01-07-2025 23:37

Josep Torres Josep Torres

Hello.A Pleosporal symbiotic organism located and

02-07-2025 17:26

Yanick BOULANGER

BonjourRécolté sur une brindille au fond d'un fo

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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!