21-11-2025 11:52
Jean-Luc RangerBonjour à tous, on voit toujours 2 espèces areni
21-11-2025 10:56
Christopher Engelhardt
Very small (~0,5 mm) white ascos, found yesterday
14-11-2025 16:26
Marian Jagers
Hello everyone, On dead wood of Cytisus scoparius
17-11-2025 21:46
Philippe PELLICIERBonjour,Récolté sur bois pourrissant de feuillu
20-11-2025 14:14
Mick PeerdemanFound on the leaves of 'Juglans regia' in the Neth
20-11-2025 13:07
Mick PeerdemanIn January i found these black markings on the dea
Dothideomycete
Andrés Valverde Valera,
19-12-2016 22:37
Bonjour, 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.
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
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
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
indeed, that was my first impression...
Best wishes,
Gernot
Andrés Valverde Valera,
19-12-2016 23:58
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
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
Alain GARDIENNET,
20-12-2016 00:03
Re : Dothideomycete
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
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
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
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
Hello, here is a little paper about Immotthia. I hope that the link works. Cheers, Walter
Andrés Valverde Valera,
21-12-2016 22:35
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
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