21-12-2025 09:32
Josep Torres
Hello.A tiny ascomycete found embedded in wood in
21-12-2025 21:32
Pol DebaenstHello, Garden, Burgweg 19, Veurne, BelgiumOn 10/1
22-12-2025 23:38
Patrice TANCHAUDBonsoir, récolte sur un mur en pierre, apothéci
22-12-2025 00:47
Patrice TANCHAUDBonsoir, récolte à proximité du milieu dunaire
21-12-2025 21:40
Isabelle CharissouBonjour, j'aimerais connaitre les références de
20-12-2025 23:08
Patrice TANCHAUDBonsoir, récolte sur sol sablonneux dans l'arriÃ
20-12-2025 15:47
Mirek GrycHi.These grew on pine wood that was heavily covere
Pyrenopeziza ?
Yannick Mourgues,
17-06-2010 23:57
Dear 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
Yannick Mourgues,
17-06-2010 23:58
Re:Pyrenopeziza ?
spores
Yannick Mourgues,
17-06-2010 23:58
Re:Pyrenopeziza ?
coupe
Yannick Mourgues,
17-06-2010 23:59
Re:Pyrenopeziza ?
textura excipulum ectal
Nicolas VAN VOOREN,
18-06-2010 08:06
Re:Pyrenopeziza ?
Yannick,
les spores sont-elles déjà cloisonnées dans l'asque? Tu as identifié le bois ?
les spores sont-elles déjà cloisonnées dans l'asque? Tu as identifié le bois ?
Hans-Otto Baral,
18-06-2010 08:20
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
Zotto
Yannick Mourgues,
18-06-2010 21:23
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
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
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
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
Hans-Otto Baral,
20-06-2010 22:45
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
Zotto
Yannick Mourgues,
21-06-2010 00:01
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
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