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13-09-2025 14:10

Wim de Groot

We found this hymenoscyphus on rubus fruticulosis.

13-09-2025 14:01

Thomas Flammer

dark brown apothecia, splitIKI-Spores biguttulate

10-09-2025 23:53

Marcel Heyligen Marcel Heyligen

Found on Robinia pseudoacasia together with Diapor

11-09-2025 16:57

Jason Karakehian Jason Karakehian

Our revision of Marthamycetales (Leotiomycetes) is

10-09-2025 17:18

Blasco Rafael Blasco Rafael

Hola, encontre este estiercol de vaca estos apotec

02-09-2025 11:34

Thomas Læssøe

https://svampe.databasen.org/observations/10527903

07-09-2025 08:19

Josep Torres Josep Torres

Hello.Tiny pinkish discomycetes, photographed and

09-09-2025 12:07

Edmond POINTE Edmond POINTE

Bonjour amis mycologues,Trouvé sur moquette de ch

08-09-2025 19:07

ruiz Jose

Hola me pasan esta recolecta en madera de fraxinus

03-09-2025 21:59

Philippe PELLICIER

La Léchère, Col de la Madeleine, alt 1970m, au s

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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!