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30-06-2025 12:09

Edvin Johannesen Edvin Johannesen

This tiny, rather "rough" erumpent asco was found

30-06-2025 19:05

ALAIN BOUVIER

Bonjour à toutes et à tousJe cherche à lire l'a

30-06-2025 14:45

Götz Palfner Götz Palfner

This is a quite common species on Nothofagus wood

30-06-2025 16:56

Lydia Koelmans

Please can anyone tell me the species name of the

30-06-2025 06:57

Ethan Crenson

Hi all, Another find by a friend yesterday in Bro

25-06-2025 16:56

Philippe PELLICIER

Bonjour, pensez-vous que S. ceijpii soit le nom co

29-06-2025 18:11

Ethan Crenson

Hello all, A friend found this disco yesterday in

28-06-2025 17:10

Peter Welt Peter Welt

I'm looking for: RANALLI, M.E., GAMUNDÍ, I.J. 19

28-06-2025 16:00

Josep Torres Josep Torres

Hello.A tiny fungus shaped like globose black grai

27-06-2025 14:09

Åge Oterhals

I found this pyrenomycetous fungi in mountain area

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Ascobolus
Malcolm Greaves, 23-03-2020 18:48
Malcolm  Greaves
Hello all

This Ascobolus was on Goose dung.

White apothecia turns dark brown on maturity, mostly 0.5mm across. Asci protruding more as it matures and eventually almost looks like A imersus.

There is bluing in Meltzers.

The spores have a smooth surface with few fissures 17-22 * 9-10

Paraphyses mostly cylindrical but one or two with swollen apex.

I have tried looking as Van Brummelen but not managed to come to any firm conclusion especially as some of the words used in the descriptions especially in the key to sections are unknown to me.

Thanks

Mal
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Norbert Heine, 24-03-2020 12:44
Norbert Heine
Re : Ascobolus
Hello Malcolm,

compare with Ascobolus brantophilus. Dissing described this species in 1989 (Four new coprophilous species of Ascobolus and Saccobolus from Greenland, Opera Bot. 100: 43-50). With strongly protruding asci and spores 21-23 x 10-11 with only few longitudinal often forked crackings this should be your species! It seems to be known from old goose dung in arctic areas only. Where did you find it?

I'll attach a pdf with the description and the drawings.

Stay healthy, Norbert
Michel Delpont, 24-03-2020 14:38
Michel Delpont
Re : Ascobolus
Hello Malcolm!

I discover your message and I also think of this species as you say Norbert; if this is confirmed it is a very nice find!

Michel.


Malcolm Greaves, 24-03-2020 16:54
Malcolm  Greaves
Re : Ascobolus
Norbert (and Michel)
Thanks for that. It was found by a lake in the North of England. There were lots of Canada goose, (Branta canadensis) and swans but there may have been others about.
The description by Dissing mentions a gelatinous sheath which I hadn't noticed originally but is definitely there so I think this is a very good fit for the A. brantophilus.
I will send a specimen to Chris Yeates and see if he can confirm. As the area is now in lockdown it is lucky that there are lots of fruitbodies available on the one sample I have.
Thanks once again. 
Mal
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