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17-02-2016 16:26

Camille Mertens

Bonjour à tous.Récolté sur Rubus fructicosus le

17-02-2016 20:06

Garcia Susana

Hola:He encontrado estos ascomas creciendo sobre m

15-02-2016 12:10

Castillo Joseba Castillo Joseba

A ver si hay alguna sugerrenciaSaludosJoseba

17-02-2016 10:29

SYLVAIN ARD

Bonjour (hello)Quelqu'un pourrait-il me passer SVP

17-02-2016 09:14

Vasileios Kaounas Vasileios Kaounas

Found 16-02-16, in cow dung.Diameter 2-5 mm.asci 1

17-02-2016 00:34

Lothar Krieglsteiner Lothar Krieglsteiner

... also near Monchique, found today. I think the

16-02-2016 22:02

Castillo Joseba Castillo Joseba

Me mandan de Galicia  esta especie, parece muy vi

14-02-2016 01:43

Lothar Krieglsteiner Lothar Krieglsteiner

the bright yellow stipitate apothecia remind of a

16-02-2016 17:22

Hans-Otto Baral Hans-Otto Baral

Dear allI want here to draw you attention to the v

16-02-2016 12:26

enrico ponzi enrico ponzi

Found 9/2/2016 in a public garden in the city of P

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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