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12-04-2026 17:56

Hardware Tony Hardware Tony

Found on dead stems in February earlier this year

12-04-2026 15:52

Gernot Friebes

Hi,I'm looking for help with this anamorph collect

12-04-2026 12:22

William Slosse William Slosse

In a dune grassland in Oostduinkerke (Belgium), on

11-04-2026 15:45

Zuzana Sochorová (Egertová) Zuzana Sochorová (Egertová)

Please, could anyone send me this paper?Moyne G.,

11-04-2026 13:34

Artem Ptukha

Hello, I am seeking assistance with the identific

11-04-2026 10:42

Castillo Joseba Castillo Joseba

Me mandan el material de Galicia, España, recolec

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Michel Hairaud Michel Hairaud

Chers amis d'Ascofrance , voici une très bonne no

11-04-2026 10:10

Michel Hairaud Michel Hairaud

Dear Ascofrance members, here is some very good ne

10-04-2026 23:22

Gernot Friebes

Hi,ascospores are 1- to 3-septate, approximately 

10-04-2026 15:51

William Slosse William Slosse

Hello everyone, On 08/04/26, I found a growth sit

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Pyrenopeziza escharodes
Garcia Susana, 27-03-2013 08:01
I found this ascomycete on stems of Rubus (Navarra-Spain)
I think it could be Pyrenopeziza escharodes, but I have no security. What do you think?
The features are:
Apothecia size 500-700um
Asci biseriate, IKI +. croziers +. Size 50-58 x 5-6.5um
Paraphyses abundant vacuoles. Of 2-3.5um wide.
Spores fusiform, 9-11 x 2.5-3.5um
Reaction to KOH = intense yellow staining.
Excipulum medular angularis
Marginal hairs up to 120 x 6um, pigmented
Presence of a highly developed subiculum, thick-walled hyphae (x 4um)
Thanks in advance
greetings

Susana
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Hans-Otto Baral, 27-03-2013 08:36
Hans-Otto Baral
Re : Pyrenopeziza escharodes
Dear Susana

did you rehydrate your fungus? It will widely open its apothecia (wait for some minutes while keeping them under water).

The refractive vacuoles in the paraphyses and their yellow reaction clearly assign this to Mollisia. The subicular hyphae are also very characteristic of the genus. 

What kind of Rubus du you have, blackberries? I think it is Mollisia rosae, and I see that Aebi 1972 lists the species also for Rubus idaeus. That species has simple-septate asci, and I could imagine that in your case there are no croziers but only basal protuberances. If you manage to show more ascus bases we could get more clear.

M. prunicola would have croziers and longer spores, but I am unaware of hosts other than Prunus.

Zotto
Garcia Susana, 27-03-2013 09:18
Re : Pyrenopeziza escharodes
Hello Zotto

I confused the name of the substrate. It was Rubus, but Rosa canina (very abundant in this area). So perfect with your identification.
Respect to croziers, surely you are right and also one case of protuberances on the base. Cost me find (I guess I wanted to see them).


thank you very much


Susana


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