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Mot de passe perdu? S'inscrire

20-03-2026 12:53

Stefan Blaser

Hello everybody, In the field, from distance, my

20-10-2017 09:23

Garcia Susana

Este otro crecía en el mismo trocito de madera qu

20-03-2026 16:16

Edvin Johannesen Edvin Johannesen

These 0.5 mm diam. acervuli were breaking through

19-03-2026 19:34

Filip Fuljer Filip Fuljer

Hello everyone,a few days ago I collected this str

19-03-2026 18:25

William Slosse William Slosse

Good evening everyone, On 18/03/26 I found a few

17-03-2026 10:09

François Freléchoux François Freléchoux

Bonjour, Voici la description rapide d'un petit d

19-03-2026 15:58

Stefan Blaser

Hello everybody, I hope for some hints... Macro:

19-03-2026 17:50

Enrique Rubio Enrique Rubio

Hi to everybodyThese thiny, blackish pseudothecia

18-03-2026 13:09

Khomenko Igor Khomenko Igor

I recently examined Celtis occidentalis branches

17-03-2026 19:41

Bernard CLESSE Bernard CLESSE

Bonsoir à toutes et tous,Pourriez-vous m'aider à

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Valsa? on Ribes
Marja Pennanen, 25-02-2015 20:26
Hi again,

on the same twig of Ribes nigrum with propably Didymella grew some Valsalike pyrenos.
There were groups of black penetrating papillas on the surface, group width about 0,5 mm.
The spores were hyaline, allantoid about 7-9x2.
Asci were thin walled about 20-28x5.
Valsa frangulae is close, but that has not been found in the neighbourhood and that makes me very unsure of my determination.

Other opinions? Marja
  • message #34132
  • message #34132