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02-01-2021 15:20

Peziza-like ascomycete on burnt ground
Sergey Markov

This peziza-like ascomycete was found 14.06.2020 i

01-01-2021 12:46

Helotial
Garcia Susana

Hola, Tengo archivada esta especie sin identifica

31-12-2020 21:11

Asco on Pteridium
Jakob Schneller Jakob Schneller

Dear ColleguesA few weeks ago I collected this fun

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Allophylaria macrospora?
Juuso Äikäs

These were growing on a fallen stem of Chamaeneri

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Hyaloscypha minuta ?
Thorben Hülsewig

Hi there,two weeks ago i found this Hyaloscypha on

31-12-2020 12:11

Durella?
Mirek Gryc

HiI have absolutely no idea about the genus, let a

31-12-2020 09:16

Xylogramma (Durella) compressa?
Mirek Gryc

HiThis is the first time I find this species so I

29-12-2020 20:14

Peziza
Bometon Javier Bometon Javier

Hola a todos, subo imagenes de una Peziza encontra

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Disco on Athyrium distentifolium
Jakob Schneller Jakob Schneller

Dear MycologistsRecently i found this disco on Lad

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onbekend tussen korstmos
Dirk Baert

Dag allen.Deze asco gevonden op een tak tussen kor

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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...