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09-06-2026 18:32

Vibrisseaceae(?) sur phragmites
Camille Mertens

Sur morceau de roseau immergé 0,5 - 0,7 mm de dia

10-06-2026 12:54

A dematiaceous hyphomycete on Filipendula
Steve Clements

Bonjour encore, Pouvez-vous m'aider, s'il vous pl

10-06-2026 23:08

Mollisia nervicola ?
éric ROMERO éric ROMERO

Bonjour tous, Je vous propose un Mollisia trouvé

10-06-2026 21:16

Ascomycète stipité sp. sur Filipendula ulmaria
François Freléchoux François Freléchoux

Bonsoir,Le dernier du jour, en attendant votre avi

10-06-2026 21:07

Pyrénomycète ? sur Gentiana lutea
François Freléchoux François Freléchoux

Toutes les tiges de gentianes jaunes de l'an passÃ

10-06-2026 13:41

Ascomycète sp. sur Gentiana lutea
François Freléchoux François Freléchoux

Bonjour à nouveau, Voici une trouvaille d'hier.

10-06-2026 11:53

Lachnum nudipes on Meadowsweet
Steve Clements

Bonjour, This disco is abundant on dead stems of

10-06-2026 10:45

Trichopeziza mollissima sur Sambucus ebulus
François Freléchoux François Freléchoux

Bonjour à nouveau, Encore une détermination qui

08-06-2026 10:16

Seemingly Helicosporeous fungus
Spooren Marco Spooren Marco

I don`t have a clou about this fungus,it is not in

10-06-2026 09:24

Trichopeziza leucophaea sur Sambucus ebulus
François Freléchoux François Freléchoux

Bonjour, J'imagine que cette détermination ne do

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Yellow Discomycete on Soil
Charles Aron, 13-10-2020 18:26
Charles Aron

Hi All,


For a couple of months I have been finding yellow apothecia on bare damp soil in shrub borders of my garden. They are 1-3mm and bowl to disc shaped. The spores are usually multiguttulate and measure 15-21x9-10 and the cylindric asci are 200-280x10-13. No blueing in iodine was observed. Did not find croziers. The paraphyses are curved, septate and slightly swollen to 3 at the apex. A distinctive feature is that the paraphyses and ascus tips are glued together with yellowish amorphous matter. In Melzer's this disperses into yellow drops. Excipulum is a Textura Globosa. I think we are looking at an operculate disco but am struggling even to get to genus.


Thanks in advance,


Charles.

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Chris Yeates, 13-10-2020 20:46
Chris Yeates
Re : Yellow Discomycete on Soil
Hello Charles

My first thought was something like Cheilymenia vitellina - any inconspicuous marginal hairs?

Best

Chris
Lothar Krieglsteiner, 13-10-2020 20:49
Lothar Krieglsteiner
Re : Yellow Discomycete on Soil
Hello Chris,
Cheilymenia I know without conspicuous contents of the spores (?).
Best regards, Lothar
Charles Aron, 13-10-2020 21:21
Charles Aron
Re : Yellow Discomycete on Soil

Hi Chris,


Not aware any hairs. Also a bit small for C. vitellina


Cheers,


Charles.

Charles Aron, 13-10-2020 21:32
Charles Aron
Re : Yellow Discomycete on Soil

Here is a slightly better photo of the apothecia, this time with sparse mosses, but in other spots there was no moss at all.


Charles.


I have received the suggestion of Boubovia/Pseudoboubovia from Marcel Vegas. I think I had ruled out Boubovia but I was unaware of Pseudoboubovia. It turns out that Pseudoboubovia benkertii, with its multiguttulate ascospores, is an excellent fit!

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Chris Yeates, 13-10-2020 22:44
Chris Yeates
Re : Yellow Discomycete on Soil
Nice!

New to UK? New genus for UK? I suspect the national fungaria will be interested . . .

It just goes to show what is out there; I tend to collect in less than "prime" habitat and still find interesting things (albeit generally quite small things ;-) )
Charles Aron, 13-10-2020 23:18
Charles Aron
Re : Yellow Discomycete on Soil

Hi Chris,


Wel, I always scan the soil surface when I'm gardening. Just in case! It turns out that this fungus is associated with my Cupressus hedge!


Yes, I think the genus might be new to Britain and I'll let Paul Cannon know.


Best wishes,


Charles.