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05-11-2025 11:33

Pierre Repellin

Bonjpur,J'ai trouvé, sur une hampe florale d'Alli

04-11-2025 09:07

Josep Torres Josep Torres

Hello.A suspected Hymenoscyphus sprouting on a thi

04-11-2025 12:43

Edvin Johannesen Edvin Johannesen

Hi! One more found on old Populus tremula log in O

04-11-2025 14:53

Josep Torres Josep Torres

Hello.Very small, globose, mucronate perithecia, b

03-11-2025 21:34

Edvin Johannesen Edvin Johannesen

These tiny (0.4-0.5 mm diam.), whitish, short-stip

03-11-2025 19:41

David Chapados David Chapados

Hi,Does anyone knows which genus could this be? G

28-10-2025 15:37

Carl Farmer

I'd be grateful for any suggestions for this strik

03-11-2025 16:30

Hans-Otto Baral Hans-Otto Baral

Hello I want to ask you if you have found this ye

01-11-2025 09:14

Francis Maggi

Bonjour,Trouvé sur Xanthoria parietina à Valdebl

28-10-2025 19:33

Nicolas Suberbielle Nicolas Suberbielle

Bonjour à tous,Je voudrais votre avis sur cette r

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Help on this pyreno
Elsa Sousa, 04-06-2017 02:16
Good evening,

I found this pyreno on falling branch but I'm sure about the tree.

Spores are not initially septate, I saw few irregulary septate (5?)

(28) 33.9 - 38.7 (40.5) × (11.9) 12 - 13 (14.1) µm


Would appreciate any help.
Thank you
Elsa
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Michel Delpont, 04-06-2017 11:36
Michel Delpont
Re : Help on this pyreno
Hello Elsa.

This is a lichen; We can see the apothecia lecanorines. I do not know if you will be able to have a precise answer here, but maybe you could propose your photos on a site corresponding to your search.


Michel.

Paul LEROY, 04-06-2017 22:34
Re : Help on this pyreno
Bonsoir,

Ici les photos ne sont pas au "top", ceci ne facilite pas la tâche. Cependant s'il y bien un lichen sur le support,les asques et les spores représentés ne sont pas de cet organisme. Il s'agit bien de spores et asques d'un champignon et apparemment d'une Diaporthale. J'oserais même avancer : Pseudovalsa lanciformis. A confirmer
Cordialement
Paul
Elsa Sousa, 05-06-2017 00:33
Re : Help on this pyreno
Thank you guys, sorry for the photos, but that's what I have by now.

There is a lichen here Michel, but I sampled just the black pyreno in the middle.

Like Paul said the micro of this lichen wouldn't be like this, I'm going to search about Pseudovalsa, thanks for the tip.

Elsa
Peter Püwert, 05-06-2017 00:50
Peter Püwert
Re : Help on this pyreno
Hi all,
the substrate strongly looks after Betula. Here a few very old spores photos of Pseudovalsa lanciformis which I also favor.
Greetings Peter.
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Elsa Sousa, 05-06-2017 23:56
Re : Help on this pyreno
Thank you Peter, for the photo signaling.
In fact it's probably Betula, there were many there where I collected. Macro photos of Pseudovalsa lanciformis like these https://www.sites.google.com/site/funghiparadise/d---ascomycota-sordariomycetes/diaporthales---kugelpilze/pseudovalsaceae/pseudovalsa-lanciformis-fr-ces-de-not-1863 are very similar. Spores are within parameters and I see the vacuoles, so I think we reached the target.

Thank you all.
Regards
Elsa