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18-01-2026 12:24

Josep Torres Josep Torres

Hello.An anamorph located on the surface of a thin

25-01-2026 23:23

Tomaz Vucko Tomaz Vucko

Hello! I found this species that resembles Delitsc

25-01-2026 16:08

Malcolm  Greaves Malcolm Greaves

This Geoglossum had spores mostly 70-80 (87) with

23-01-2026 21:50

Cameron DK

I am looking for this please publication. is anyon

10-01-2026 20:00

Tom Schrier

Hi all,We found picnidia on Protoparmeliopsis mur

21-01-2026 19:55

Bohan Jia

Hi,  Could this be Nemania aureolutea? Or did I

21-01-2026 16:32

Gernot Friebes

Hi,I need your help with some black dots on a lich

21-01-2026 16:48

Gernot Friebes

Hi,after my last unknown hyphomycete on this subst

20-01-2026 17:49

Hardware Tony Hardware Tony

I offer this collection as a possibility only as e

15-01-2026 15:55

Lothar Krieglsteiner Lothar Krieglsteiner

this one is especially interesting for me because

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Dothideomycete
Andrés Valverde Valera, 19-12-2016 22:37
Andrés Valverde ValeraBonjour,
Je vous ajoute quelques photos d'un dothideomycete (comme m'a dit le camarade Enrique Rubio), que j'ai trouvé le 5 décembre près de l'étang du Banyoles sur bois morte de possible Salix. Les pseudotecia? qui sont tuberculées mesurent 160 ?m aprox. J'ai pu regarder les spores, qui mesurent 14,4 x 4,8 micres.
J'espère que vous pouvez m'aider à déterminer de quelle espèce il s'agit.
Merci beaucoup d'avance,

Andrés Valverde Valera
El Prat de Llobregat (Barcelona)


PD. Excusez-moi mes possibles fautes d'orthographe.

  • message #46218
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Gernot Friebes, 19-12-2016 22:46
Re : Dothideomycete
Hi,

could you elaborate a bit on the form of the ascomata? Is it possible that they grow on old stromata of Hypoxylon?

Best wishes,
Gernot
Alain GARDIENNET, 19-12-2016 23:40
Alain GARDIENNET
Re : Dothideomycete
You think at Immotthia, Gernot, right ?
Gernot Friebes, 19-12-2016 23:46
Re : Dothideomycete
Hi Alain,

indeed, that was my first impression...

Best wishes,
Gernot
Andrés Valverde Valera, 19-12-2016 23:58
Andrés Valverde Valera
Re : Dothideomycete
Hi Gernot,

I prefer to send to you a picture that I have just took under the microscope of these ascomata, that are tuber-form, distributed especially in the periphery of the fruiting bodies.

At first I thank in Hypoxylon serpens, for the shape of the mushroom, but I haven't found spores like those of Hypoxylon. Although I have to say that I have found an another kind of spores while searching the asci, that I attach in the second picture.

Best whishes,
Andrés
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Alain GARDIENNET, 20-12-2016 00:03
Alain GARDIENNET
Re : Dothideomycete

Andrés, the solution is perhaps there : http://www.ascofrance.fr/search_recolte/3004.


Alain

Gernot Friebes, 20-12-2016 00:05
Re : Dothideomycete
Hi Andrés,

yes, that looks very much like Immotthia atrograna on Hypoxylon sp. On your last photo you show the conidia of this species.

Best wishes,
Gernot
Andrés Valverde Valera, 20-12-2016 00:15
Andrés Valverde Valera
Re : Dothideomycete
Thanks you so much Alain and Gernot!!!

I've seen the subject "sur hypoxylon / 2. pyreno noir" and I also think that I have found the anamorphe (Sphaeropsis parasitans) but I will write only Immothia atrograna bescause I understand that they are their conidia.

Thank you very much for your help! Without you I would never have determined this species. Muchas gracias!!

Andrés
Jaklitsch Walter, 21-12-2016 19:31
Re : Dothideomycete
http://www.zobodat.at/pdf/OestZPilz_11_0093-0106.pdf

Hello, here is a little paper about Immotthia. I hope that the link works. Cheers, Walter
Andrés Valverde Valera, 21-12-2016 22:35
Andrés Valverde Valera
Re : Dothideomycete
Hello Walter,

Yes, the link works! And I have found another very recent in researchgate,
https://www.researchgate.net/publication/299423764_Immotthia_atrograna_Dacampiaceae_Ascomycota_a_new_for_Ukraine_fungicolous_fungus_from_the_Carpathians

Thanks you so much,

Andrés Valverde Valera