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13-01-2026 18:55

Strossmayeria sp. on indet. decroticate hardwood
Rees Cronce

Strossmayeria sp. on indet. decroticate hardwoodTh

13-01-2026 07:57

cf. Bombardia on indet. decorticate wood - 304222307
Danny Newman Danny Newman

cf. Bombardia on indet. decorticate woodAppalachia

11-01-2026 20:35

Pyrenomycete on Conifer Wood
Josep Torres Josep Torres

Hello.A very tiny pyrenomycete sprouting sparsely

13-01-2026 10:13

Cordieritidaceae sp. on indet. wood w/ Hypoxylon sp. - 305337857
Danny Newman Danny Newman

Cordieritidaceae sp. on indet. wood w/ Hypoxylon s

13-01-2026 07:28

Chlorociboria glauca on indet. decorticate hardwood log - 303627368
Danny Newman Danny Newman

Chlorociboria glauca on indet. decorticate logThe

13-01-2026 07:14

Neodasyscypha cerina on indet decorticate log - 303463318
Danny Newman Danny Newman

Neodasyscypha cerina on indet decorticate logThe S

13-01-2026 09:10

Dasyscyphella chrysotexta on indet. decorticate hardwood - 303900282
Danny Newman Danny Newman

Dasyscyphella chrysotexta on indet. decorticate ha

13-01-2026 08:43

Tricladium varicosporioides on indet. decorticate stick - 303997395
Danny Newman Danny Newman

Tricladium varicosporioides on indet. decorticate

13-01-2026 08:49

Coccomyces sp. on fallen Rhododendron leaves - 305874978
Danny Newman Danny Newman

Coccomyces sp. on fallen Rhododendron leavesPretty

12-01-2026 22:02

Coryneum (?) acervuli on oak (?) branch
Ethan Crenson

Hello all, I am hoping someone will have some ins

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Small-spored O. flavidobrunneola
Viktorie Halasu, 14-04-2025 23:19
Viktorie HalasuHello, 

I've microscoped exsiccate of an Otidea which looks a lot like O. flavidobrunneola, but the spores are too small. Everything else is OK - macro appearance of the exsiccate, paraphyses shape, spore shape, ectal excipulum structure, KOH and MLZ reactions. I have studied six other collections of flavidobrunneola with only a small difference in spore size, but this one is distinctly different. I measured sporeprint deposited on hymenium surface, so the apothecia should have been mature (although this species notoriously matures tardily). 

What do you think - is it flavidobrunneola or not? Czechia, collected in July, 370 m a.s.l., on edge of a path under broadleaved trees (Tilia, Fraxinus), bedrock is paragneiss. 

Thank you for your opinions. 
Viktorie
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