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12-06-2026 14:50

Mollisia revincta (?)
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Bonjour, Voici la brève description d'une Mollis

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Ascomycète stipité sp. sur Filipendula ulmaria
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Bonsoir,Le dernier du jour, en attendant votre avi

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Orbilia
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Hi all, Recently, a friend found this Orbilia in

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Spinellus-like fungus on Scathophaga stercoraria
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Hello all,In an attempt to make a culture of a sus

11-06-2026 19:03

IMPORTANT >> MAINTENANCE 15-06
Nicolas VAN VOOREN Nicolas VAN VOOREN

Chers membres d'Ascofrance,Le site sera placé en

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Mollisia nervicola ?
éric ROMERO éric ROMERO

Bonjour tous, Je vous propose un Mollisia trouvé

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Vibrisseaceae(?) sur phragmites
Camille Mertens

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

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A dematiaceous hyphomycete on Filipendula
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Bonjour encore, Pouvez-vous m'aider, s'il vous pl

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Pyrénomycète ? sur Gentiana lutea
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Toutes les tiges de gentianes jaunes de l'an passÃ

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Ascomycète sp. sur Gentiana lutea
François Freléchoux François Freléchoux

Bonjour à nouveau, Voici une trouvaille d'hier.

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Identification of spore trap spores
Martin Mullett, 29-09-2011 18:05

 Hello all,


I am running a spore trap (Burkhard) in a forest in the southeast of England and am having difficulty identifying some (or many!) of the spores.
I was wondering if anyone recognizes the ones in the photos?  They are very distinct, long (some 100um) and seem to be trapped on a rainy day in middle of June after a long dry period.  Unfortunately nothing is known about the fruiting body.
Does anyone have any ideas??


Many thanks,


Martin

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Hans-Otto Baral, 29-09-2011 18:13
Hans-Otto Baral
Re : Identification of spore trap spores
Hi Martin

this reminds me of ascospores of Ophiobolus, üartly broken in two parts, with one cell inflated in the middle.

Zotto
Peter Welt, 29-09-2011 18:45
Peter Welt
Re : Identification of spore trap spores

Hi Martin,

This is almost certainly Ophiobolus acuminatus. I the middle of the constricted (Fig. 2 middle), and it thickened spores are typical for this species.

Peter

Martin Mullett, 30-09-2011 20:48
Re : Identification of spore trap spores
Hello Peter and Zotto,
Yes it is Ophiobolus, it fits perfectly!! Thank you very much for your help!
Can I ask if you think this new photo is a Fusarium species?  It reminds me of Fusarium with a sort of 'heel cell' but it doesn't seem quite right.
Thanks again for your help!

Martin
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Hans-Otto Baral, 30-09-2011 21:07
Hans-Otto Baral
Re : Identification of spore trap spores
Hi Martin

sorry I can't. But a question: do you always kill the spores that you trap? I think they will not run away if you use tap water instead.

But without joking: I recognize species much easier when the spores are alive, when I see the guttules inside etc. And they are well visible on photos without staining.

Zotto
Martin Mullett, 04-10-2011 13:47
Re : Identification of spore trap spores
Haha,
Yes you are right, they shouldn't run away!  But sometimes they do germinate before I am able to have a look at them.  But maybe I will be kinder and not kill them straight away in the future :)

Thanks,

Martin