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17-12-2025 18:35

Michel Hairaud Michel Hairaud

Bonjour à tous/Hi to everyone I am passing along

21-11-2025 10:47

François Freléchoux François Freléchoux

Bonjour,Peut-être Mollisia palustris ?Trouvée su

15-12-2025 15:48

Danny Newman Danny Newman

Melanospora cf. lagenaria on old, rotting, fallen

15-12-2025 15:54

Johan Boonefaes Johan Boonefaes

Unknown anamorph found on the ground in coastal sa

15-12-2025 21:11

Hardware Tony Hardware Tony

Small clavate hairs, negative croziers and IKI bb

15-12-2025 07:09

Danny Newman Danny Newman

indet. Rutstroemiaceae sp. on unk. fallen leavesMc

15-12-2025 21:47

Pol Debaenst

Good evening, On 12/11/2025 I found ascomycetes w

15-12-2025 07:05

Danny Newman Danny Newman

Pseudosclerococcum golindoi (det: Zotto)near Cosb

15-12-2025 11:49

Danny Newman Danny Newman

ITS sequences from the following two collections B

15-12-2025 12:34

Danny Newman Danny Newman

indet. Rhytismataceae on oak leafnear Purchase Roa

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Pezicula cf. cinnamomea (or too small?)
Edvin Johannesen, 16-12-2021 17:02
Edvin Johannesen
Just a couple of really tiny (0.3 mm) apothecia on bark of Betula.  Spores ca. 25-27 x 10-11 mcr. (measured in KOH)  Appearing septate (but only large guttules?).  Aseptate in Baral'sche Lösung. Paraphyses filiform. +/- isodiametric cells plus yellow-pigmented thin hyphae in excipulum. Ascus pore IKI+ (deep reddish brown in Baral'sche).

I am thinking Pezicula cinnamomea, but can it be this small and solitary?  Any other Pezicula possibility?

All micro photos in KOH (except last, in Baral'sche).

Grateful for opinions.
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