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24-12-2025 18:12

Ethan Crenson

Hello all, A friend found this Orbilia growing on

28-12-2025 12:08

Margot en Geert Vullings

This possible Karstenia was found on the bark of d

21-12-2025 21:32

Pol Debaenst

Hello, Garden, Burgweg 19, Veurne, BelgiumOn 10/1

26-12-2025 21:19

Arnold Büschlen

Pithyella chalaudii Priou. Ist als Bryoparasit in

21-12-2025 09:32

Josep Torres Josep Torres

Hello.A tiny ascomycete found embedded in wood in

18-12-2025 21:17

Pol Debaenst

The identification took me to Byssonectria deformi

21-12-2025 12:34

Castillo Joseba Castillo Joseba

me mandan el material seco de Galicia (España) 

24-12-2025 17:08

Hulda Caroline Holte

Hello, I have found this propoloid ascomycete on

23-12-2025 11:27

Louis DENY

bonjour forum,sur débris de bois de feuillu (acer

20-12-2025 10:49

Mirek Gryc

Hi. „I doubt it is possible to identify this ti

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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