Lopadostoma on hardwood - Forum ASCOFrance

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Lopadostoma on hardwood

Enrique Rubio, 09-02-2014 20:52

Hi to all

These pulvinate erumpent stromata grew on corticated wood of Quercus robur. The very polymorphic and aberrant ascospores are mostly in 4-spored asci. It could be the Lopadostoma dryophilum of the recent paper of Jaklitsch, Fournier. Rogers and Voglmayr?

Thanks again

Alain GARDIENNET, 09-02-2014 21:04

Re : Lopadostoma on hardwood

Hi Enrique,

Have you read the last paper in Persoonia 32 ?

Alain

Enrique Rubio, 09-02-2014 21:09

Re : Lopadostoma on hardwood

Hi Alain

Yes. I have the paper. I have doubts because 'my' stromata have a reddish tissue between the perithecia and the asci are mostly narrower and 4-spored

Thanks!

Alain GARDIENNET, 09-02-2014 21:22

Re : Lopadostoma on hardwood

Yes, and ascospores also don't fit with described species.

You should contact Jacques or Walter...

Alain

Jacques Fournier, 09-02-2014 22:07

Re : Lopadostoma on hardwood

Hi Enrique and Alain,
the second photo shows some white tissue above the perithecia, thus I think that L. dryophilum can be ruled out.
It should be assessed if all asci are definitely 4-spored, which would be highly distinctive, or if only a variable percentage of asci are fortuitously 4-spored. Such asci are more frequent in hardly mature perithecia and may be responsible for abnormal ascospores. Enrique, try to find 8-spored asci and make measurements of ascospores, their length range should be smaller and more informative.
Cheers,
Jacques

Bernard Declercq, 10-02-2014 11:53

Re : Lopadostoma on hardwood

Bonjour Jacques,

Je te serais reconnaissant recevant une copie de l'article concerné.

Amitiés,
Bernard

Alain GARDIENNET, 10-02-2014 12:05

Re : Lopadostoma on hardwood

Il est en ligne sur le web, accessible.

Enrique Rubio, 10-02-2014 13:10

Re : Lopadostoma on hardwood

Hi to all

Jacques, je vais t'envoyer mon materiel avec l'autre Lopadostoma similaire au gastrinum, avec blanchatre endostroma, que nous avions trouvé sur Quercus ilex.

Amitiés

Jacques Fournier, 10-02-2014 14:16

Re : Lopadostoma on hardwood

D'accord Enrique,
envoie moi les deux, c'est vraisemblablement la même espèce.
Merci
Jacques

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