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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

09-12-2025 12:06

Andgelo Mombert Andgelo Mombert

Bonjour,Je recherche l'article concernant Hypobryo

13-12-2025 17:26

Buckwheat Pete

Hello everyone,I have a rather interesting ascomyc

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Peziza-like ascomycete on burnt ground
Sergey Markov, 02-01-2021 15:20
This peziza-like ascomycete was found 14.06.2020 in RU, Moscow region on burt ground, some apothecies directly on charcoal.

Excipulum ectal consist of textura angularis. Upper layer of excipulim (at margin with subhymenium) consist of txtura intricata. Paraphyses hyaline. Asci MLZ+ (pre-treated with KOH 3%) - showing prominent blue ring. Ascospores (16.39) 17.06 - 18.10 (18.32) × (8.46) 9.10 - 9.88 (10.04) µm; Q = (1.76) 1.78 - 1.93 (1.98) ; N = 28; Me = 17.53 × 9.41 µm ; Qe = 1.87. Ascospores ornamented with apicular gel-like "caps" and very rare single warts. I haven't found croziers, but it is not fact, that this fungus is w/o croizers.

I have no idea because strange spore ornamentation for peziza s.l. (and not suitable spore sizes for P.merdae / P.acroornata) Please help.
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Nicolas VAN VOOREN, 02-01-2021 15:43
Nicolas VAN VOOREN
Re : Peziza-like ascomycete on burnt ground
Look at Peziza acroornata.
Sergey Markov, 02-01-2021 15:57
Re : Peziza-like ascomycete on burnt ground
Thank Yoy, Nicolas.

I checked P.acroornata, but spore length for this species reported as >19 um (i.e. 19–22 (24,5) -  Premières récoltes françaises de Peziza acroornata (Ascomycota, Pezizales) - doi: 10.25664/art-0009;  19–22,6 - Peri? B. (2011): Peziza acroornata (Ascomycota, Pezizales) - quatrième récolte européenne, première du Monténégro. – Czech Mycology 63(1): 55–64.

But i didn't find any spore > 18.3 um

Also i checked P.merdae. Also no intersection with my spore measurement: 14,8-16,6 x 6,6-8,3?m (Häffner). And P.merdae should have fine punctate ornamentation on entire spore surface.
Nicolas VAN VOOREN, 02-01-2021 17:25
Nicolas VAN VOOREN
Re : Peziza-like ascomycete on burnt ground
I have a collection of P. acroornata with ascospores measuring 17-19 (20) × 9-10 (11) µm, Me 18.5 × 9.6 µ, Qm 1.9, so whyt not. The substrate is unusual, so maybe something else.
I have no other name to propose.
Sergey Markov, 02-01-2021 18:10
Re : Peziza-like ascomycete on burnt ground
Thank You again for new information about spore measurements.

I will postpone this collection for future research and possibly sequencing...