Accès membres

Mot de passe perdu? S'inscrire

05-06-2026 11:02

Thomas Læssøe

https://svampe.databasen.org/observations/10596691

07-06-2026 15:10

William Slosse William Slosse

Hello everyone,On 05-06-26, I found following asco

07-06-2026 12:43

Steve Clements

Bojour. This was a strange find on a stick on my

07-06-2026 12:09

François Freléchoux François Freléchoux

Bonjour, Voici une brève description de ce qui m

12-07-2015 00:05

Nedim Jukic Nedim Jukic

This one from the same locality as the previous on

06-06-2026 17:44

Steve Clements

Bonjour, This disco was on planed wood 3 x 1.5 cm

14-08-2016 23:15

Alex Akulov Alex Akulov

Dear friendsCan you help me to find the descriptio

04-06-2026 23:53

Stip Helleman Stip Helleman

Dear all, someone can get acces to this article f

04-06-2026 11:36

Gernot Friebes

Hi,found on Vaccinium myrtillus.Asci: IKI –, 8-s

05-06-2026 12:10

François Freléchoux François Freléchoux

Capitotricha sp. sur Lonicea caerulea Caractères

« < 1 2 3 4 5 > »
Pyrenopeziza-like species with 4-spored asci
Nicolas VAN VOOREN, 17-06-2010 13:39
Nicolas VAN VOORENOn herbaceous stem, I found a Pyrenopeziza-like species, with asci containing only 4 spores!
The dark apothecia open in wet conditions

Asci 40-44 x 5-6 µm, with crozier, 4-spored, apical ring IKI+ (bb)
Paraphyses without VB, Ø 1-2.5 µm
Spores fusoid, with small LBs, 11-16 x 2-2.5 (2.7) µm
Cells at the margin with short "hairs" (max length 25 µm), enlarged at their base.

Do you have any idea?
  • message #11985
Nicolas VAN VOOREN, 17-06-2010 13:40
Nicolas VAN VOOREN
Re:Pyrenopeziza-like species with 4-spored asci
Marginal hairs...
  • message #11986
Nicolas VAN VOOREN, 17-06-2010 13:40
Nicolas VAN VOOREN
Re:Pyrenopeziza-like species with 4-spored asci
Ascus and spores...
  • message #11987
Hans-Otto Baral, 17-06-2010 13:44
Hans-Otto Baral
Re:Pyrenopeziza-like species with 4-spored asci
Strange! Although I beleive you, I would be happy to see photos of an ascus with 4 spores. Sometimes such a feature is variable. Did you see it in every ascus? Are there any remains of small aborted spores visible?

Also a photo of a section through the apparently thick margin would be valuable.

Zotto
Nicolas VAN VOOREN, 17-06-2010 19:15
Nicolas VAN VOOREN
Re:Pyrenopeziza-like species with 4-spored asci
I verify on two different apothecia, and all the mature asci I saw were containing 4 spores. I didn't observe aborted spores. I'm going to rehydrate the collection to make a photograph of an ascus.
I join a photograph of the section of the marginal excipulum (textura subglobulosa).
  • message #11993
Nicolas VAN VOOREN, 20-06-2010 20:08
Nicolas VAN VOOREN
Re:Pyrenopeziza-like species with 4-spored asci
Here is a (bad) photograph of an ascus containing 4 spores...
  • message #12051
Hans-Otto Baral, 20-06-2010 22:53
Hans-Otto Baral
Re:Pyrenopeziza-like species with 4-spored asci
O.k., and you have no idea of the plant?

Zotto
Nicolas VAN VOOREN, 21-06-2010 08:05
Nicolas VAN VOOREN
Re:Pyrenopeziza-like species with 4-spored asci
Sorry, I don't have any idea; here is a macrophoto of the stem.
  • message #12064