Accès membres

Mot de passe perdu? S'inscrire

15-07-2025 13:27

Angel Pintos Angel Pintos

Hello, does anyone have access to the following ar

14-07-2025 11:20

Michel Hairaud Michel Hairaud

Bonjour, Voici une espèce de  (?) Hyaloscyphace

16-01-2023 21:31

Riet van Oosten Riet van Oosten

Hello, Nearby the find of Calycina claroflava on

14-07-2025 17:55

Yanick BOULANGER

BonjourAutre dossier laissé en suspendJe viens de

14-07-2025 11:17

Yanick BOULANGER

BonjourJ'ai un dossier Jackrogersella qui est rest

14-07-2025 15:52

Gernot Friebes

Hi,I wanted to share this collection on Rubus idae

14-07-2025 13:37

Gernot Friebes

Hi,do you think this collection could be R. ulmari

25-02-2023 18:36

Elisabeth Stöckli

Bonsoir, Trouvé sur un tronc de Salix recouvert

12-07-2025 16:45

Thierry Blondelle Thierry Blondelle

Bonjour à tous,J'avais d'abord pensé à des stro

05-07-2025 12:38

Åge Oterhals

I found this pyrenomycetous fungi in pine forest o

« < 1 2 3 4 5 > »
Pyrenopeziza ?
Yannick Mourgues, 17-06-2010 23:57
Yannick MourguesDear all.

Here is a small asco found on decorticated wood sp. in hight altitude (2000m), Pyrenopeziza-like specie I think.

Apo. from 400 to 600 um diameter, grey with a white margin, opening at first in slit.
Presence of brown septate hairs (wide of 2-3um) on the base.

Asci unitunicate, spores biseriate, 175-180x10-12 um, IKI- even with pre-treatment in KOH, with croziers.
Spores 13,3-14,5x3,7-4,4 um and often 1-septate.
Sous-hymenium textura intrica
Excipulum textura globulosa/subglobulosa, brown on excipulum-ectal and gradually brown to hyalin inward.

Have you got an idea ?

Yannick Mourgues
  • message #11995
Yannick Mourgues, 17-06-2010 23:58
Yannick Mourgues
Re:Pyrenopeziza ?
spores
  • message #11996
Yannick Mourgues, 17-06-2010 23:58
Yannick Mourgues
Re:Pyrenopeziza ?
coupe
  • message #11997
Yannick Mourgues, 17-06-2010 23:59
Yannick Mourgues
Re:Pyrenopeziza ?
textura excipulum ectal
  • message #11998
Nicolas VAN VOOREN, 18-06-2010 08:06
Nicolas VAN VOOREN
Re:Pyrenopeziza ?
Yannick,
les spores sont-elles déjà cloisonnées dans l'asque? Tu as identifié le bois ?
Hans-Otto Baral, 18-06-2010 08:20
Hans-Otto Baral
Re:Pyrenopeziza ?
Clearly a Pyrenopeziza. There exist some on woody substrate (incl. bark), also with inamyloid asci, but they are partly indeterminable. Important is to know whether the spore septa occur inside living asci. Perhaps you have still some living ones and can check them and make a photo? How large are the asci? I cannot believe that they are much over 100 µm ?!

Zotto
Yannick Mourgues, 18-06-2010 21:23
Yannick Mourgues
Re:Pyrenopeziza ?
Thank's a lot.
First, the wood has been identified : Sambucus.
Second, I remember that only a few spores were septate in asci. I'll try this evening to make picture of that. Asci are 175-180x10-12 um I'll make a picture of that too.
Yannick
Yannick Mourgues, 20-06-2010 15:15
Yannick Mourgues
Re:Pyrenopeziza ?
Dear Zotto.
Here is a picture of an ascus from rehydrated material. Spores are usually non-septate inside but sometimes they are 1-septate.
Asci are 60-70x6-10um ! You are right ! I haven't read the good line on my paper... Sorry.
Yannick
  • message #12041
Hans-Otto Baral, 20-06-2010 22:45
Hans-Otto Baral
Re:Pyrenopeziza ?
With Bernard's key there is only one lignicolous species (I wonder about that), Py. salicis (Feltg.) Nannf., on Salix and Sambucus, wit spores 12-15 x 2.5 µm. In Nannfeldt 1932 there is no mention of the iodine reaction, also not in Bernard's key. Maybe Höhnel says something about that.

Zotto
Yannick Mourgues, 21-06-2010 00:01
Yannick Mourgues
Re:Pyrenopeziza ?
Thank's Zotto.
Could you send me Bernard's key if it's possible ? I haven't got it.
I will try to find if Höhnel says something about this specie.

Yannick