
05-07-2025 12:38
Åge OterhalsI found this pyrenomycetous fungi in pine forest o

02-07-2025 18:45
Elisabeth StöckliBonsoir,Sur feuilles d'Osmunda regalis (Saulaie),

04-07-2025 20:12
Hello.A fungus growing on the surface of a trunk o

20-06-2025 08:33
Hello.Small, blackish, mucronated surface grains s

28-06-2025 16:00
Hello.A tiny fungus shaped like globose black grai

04-07-2025 12:43
me mandan el material seco de Galicia (España)

03-07-2025 18:40
me mandas el material seco de Galicia (España) re
looking for Cosmospora ustulinae on Ustulina (Kretzschmaria) deusta I found this fungus. The spores are too large for C. ustulinae. For Dialonectria episphaeria the spores are too coarsely warted and even too large. There are some other species that could potentially grow on Ustulina but with smooth spores (e. g. Cosmospora flavoviridis s. str.).
Perithecia: red, with papilla, no disc, collapsing laterally up to the papilla
Ascospores: 8-14 x 3,5-5 (5,5) µm, pale brown, coarsely warted, even in larger hyaline ascospores, larger ascospores tend to have acute ends, but also smaller ones with rounded ends are pale brown
Host: Ustulina (Kretzschmaria) deusta
Is it still one of the species mentioned above or did I find something else?
Regards
Steffen