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22-04-2026 20:17

Pseudaegerita spec.
Marian Jagers Marian Jagers

Is anyone familiar with the Hyphomycetes genus Pse

22-04-2026 20:54

Pyrenopeziza on monocot.
Enrique Rubio Enrique Rubio

Hi to everybody.This Pyrenopeziza grew in moist le

22-04-2026 19:12

Poilu, violet avec KOH
Louis DENY

Bonjour forum.Trouvé à Belfort, est de la France

21-04-2026 21:00

Hymenoscyphus sp
Sylvie Le Goff

Bonjour à tousJe sollicite votre aide pour cet as

21-04-2026 22:14

Peziza
Margot en Geert Vullings

This cup fungus was found on April 10, 2026, on lo

22-04-2026 01:06

Neonectria ou thelonectria ?
Richard VALERI Richard VALERI

Bonjour à tous.Je vous présente cette Nectria s.

21-04-2026 13:36

Wentiomyces-like on Salix
Gernot Friebes

Hi,I am out of ideas for this one. I collected Sal

21-04-2026 13:19

Lophodermium on Typha
Gernot Friebes

Hi,this Lophodermium on Typha has ascospores measu

21-04-2026 13:05

Hyphomycete on Typha
Gernot Friebes

Hi,this hyphomycete feels familiar but I was not a

20-04-2026 22:00

Trichobolus dextrinoideosetosus?
Malcolm Greaves Malcolm Greaves

These pale yellow, hairy ascos were growing on cul

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Ascobolus michaudii?
Chris Yeates, 19-06-2019 19:07
Chris Yeates
Bonsoir tous

this fungus developed on incubated sheep (Ovis aries) dung after 2-3 weeks. It grew on both the dung and the paper on which the dung was placed.

During development the ascomata were a bright lemon-yellow, this has faded somewhat as they matured. They started out globose, then barrel-shaped, finally to the shape which can be seen in the accompanying photographs. A noticeable feature is that they are now ± stoutly stipitate. This shape is very like that ilustrated in Doveri (central image) and also by Ann Bell in her "An illustrated guide to the coprophilous Ascomycetes of Australia"

The ascopores are marked with irregular cracks, without any longitudinal / parallel / anastomosing ones. Spore measurements are 19.1-20.6 x 9.7-11.2µm, which correspond perfectly with those given by van Brummelen, and lie between those given by Doveri and Bell.

In the light of all the above I am fairly confident that this is Ascobolus michaudii; as this would be new for me (and there are few UK records) I would be grateful for any comments from those with experience of the species.

Amitiés

Chris
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Michel Delpont, 19-06-2019 20:12
Michel Delpont
Re : Ascobolus michaudii?
Good evening, Chris!

Very nice pictures! Your description seems to correspond well to A. michaudii as well as the ornamentation and shape of the spores. Indeed, some apothecies can develop a kind of foot, sometimes with age. It is not a very frequent species (at least for my harvests), but despite everything it appears regularly in small numbers.


Amicalement.


Michel.

Chris Yeates, 20-06-2019 02:31
Chris Yeates
Re : Ascobolus michaudii?
Je toi remercié comme toujours Michel!

Amitiés

Chris
Jacky Launoy, 20-06-2019 09:51
Re : Ascobolus michaudii?
Good morning Chris,

I found this species several times and I think you are right with A. michaudii. Compare also the paraphyses wirth the fig f, g in the monograph off Van Brummelen (page 114). See my pictures below.

Greats

Jacky
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