27-03-2013 08:01
Garcia SusanaI found this ascomycete on stems of Rubus (Navarra
26-03-2013 11:11
Gilbert MOYNETrouvé hier, dans un état assez avancé, un Enco
25-03-2013 13:58
Miguel Ángel Ribes
Apos < 5 mm, with a big "collarium" at the marg
24-03-2013 14:31
Rubén Martínez-Gil
Hola a todos.Ayer encontré esta Peziza en suelo a
23-03-2013 13:22
Gilbert MOYNEBonjour, Encore besoin d'aide car je ne sais où c
24-03-2013 11:32
Martin MullettHello, I was wondering if anyone happened to have
31-10-2012 00:01
Malcolm Greaves
This one was found on wet soil.Apothecia 5 mm acro
Pyrenopeziza escharodes
Garcia Susana,
27-03-2013 08:01
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
Hans-Otto Baral,
27-03-2013 08:36
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
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
?