17-03-2026 19:41
Bernard CLESSE
Bonsoir à toutes et tous,Pourriez-vous m'aider à
19-03-2026 10:56
Thomas Læssøehttps://svampe.databasen.org/observations/10505643
18-03-2026 13:09
Khomenko Igor
I recently examined Celtis occidentalis branches
27-02-2026 11:21
Yannick Mourgues
Hi to all. Here is a specie that can may be relat
18-03-2026 18:42
Gonzalez Garcia MartaI have collected some lyre-shaped apothecia on the
18-03-2026 17:22
Katarina PastircakovaHi there,I'm looking for the following literature:
27-11-2025 15:41
Thomas LæssøeSpores brownish, typically 4-celled; 26.8 x 2.4;
18-03-2026 11:52
Thomas Læssøehttps://svampe.databasen.org/observations/10493688
11-03-2026 17:36
Michel Hairaud
Bonjour, Je cherche des indices pour cette réc
17-03-2026 10:40
Martine Vandeplanque
Bonjour à tous.Chaque année en mars ou avril, il
The fruiting bodies are very small, 0.4 mm maximum.
However, I am not sure if the fruiting bodies actually grew on the bark. The thallus of a dead lichen was visible on the bark where they appeared. Apparently, it was the place where fruiting bodies were growing.
The fruiting bodies are so small and fragile that I am not able to make an exact cross-section.
Do you have any ideas?
best regards
Mirek
The problem is that I cannot observe the structures. The fruiting bodies are very delicate and thin. But if there were angularis, I would probably notice?
It keeps them alive so I'll try to observe something more, but with my ever weaker eyesight I have problems with it.
Thank you .
Mirek
Only today I had time to see the find in daylight. What appeared to be a dead lichen is not. The fruiting bodies grow on the dead piece of Peniophora. Peniophora has not been microscoped, but the macro features indicate Peniophora polygonia, which in my case is a common species on Populus tremelia.
You were right it was Hyphodiskus but I am not able to match it with any collection you have on disk.
The vast majority of spores without any content. Only very rarely can you find spores with two small droplets. I have measured more spores, here are their dimensions:
(5.5) 5.9 - 8 (9.6) × (1.7) 1.9 - 2.2 (2.3) µm
Q = (2.6) 2.8 - 3.9 (5); N = 18
Me = 6.9 × 2.1 µm; Qe = 3.4
For the sake of completeness, I also put in a few more photos.
best regards
Mirek
