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19-08-2022 22:26

Juuso Äikäs

A few years ago I found a group of olive-brown fru

19-08-2022 19:05

Stefan Jakobsson

On a petiole of a leaf of what seems to be Populus

09-08-2022 20:06

Stephen Mifsud Stephen Mifsud

I have found an interesting aspergillus on flowers

13-08-2022 17:18

Stephen Mifsud Stephen Mifsud

I assumed these are weak colonies of Neurospora on

18-08-2022 17:50

Thomas Læssøe

https://svampe.databasen.org/observations/10283042

10-08-2022 15:45

Pierre-Yves Julien

Récolte le 31/07/2022 – Ozoir-la-Ferrière (77)

02-08-2022 17:48

Pierre-Yves Julien

Récolte le 31/07/2022 – Ozoir-la-Ferrière (77)

16-08-2022 20:07

Bernard Declercq Bernard Declercq

Good evening,Who could be so kind to supply me fol

07-01-2014 23:04

Michel Hairaud Michel Hairaud

Bonjour à tous, Hi to all. This tiny bright yell

16-08-2022 15:50

Thomas Læssøe

https://svampe.databasen.org/observations/10283169

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Lopadostoma on hardwood
Enrique Rubio, 09-02-2014 20:52
Enrique Rubio

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

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Alain GARDIENNET, 09-02-2014 21:04
Alain GARDIENNET
Re : Lopadostoma on hardwood

Hi Enrique,


Have you read the last paper in Persoonia 32 ?


Alain

Enrique Rubio, 09-02-2014 21:09
Enrique Rubio
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
Alain GARDIENNET
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
Jacques Fournier
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
Bernard Declercq
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
Alain GARDIENNET
Re : Lopadostoma on hardwood
Il est en ligne sur le web, accessible.
Enrique Rubio, 10-02-2014 13:10
Enrique Rubio
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
Jacques Fournier
Re : Lopadostoma on hardwood
D'accord Enrique,
envoie moi les deux, c'est vraisemblablement la même espèce.
Merci
Jacques