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09-06-2025 22:28

Edmond POINTE Edmond POINTE

Bonjour,Apothecie pulvinée, blanche 0.4 x 1mm sur

09-06-2025 10:32

Elisabeth Stöckli

Bonjour,Trouvé sur une branche morte et décortiq

09-06-2025 12:50

Joaquin Martin

Hi,Last week I found this Hymenoscyphus on Rubus.S

09-06-2025 16:18

Sylvie Le Goff

BonjourPourrais je avoir votre avis sur cet ascome

09-06-2025 16:36

David Malloch David Malloch

As far as I know, this species has yet to be assig

08-06-2025 18:03

éric ROMERO éric ROMERO

Bonjour à tous, Une récolte alpestre discrète

07-06-2025 15:39

Edvin Johannesen Edvin Johannesen

A friend sent me a few Betula seeds with tiny blac

08-06-2025 14:55

Edvin Johannesen Edvin Johannesen

Ascomata only ca. 1 mm, erumpent on very thin Sali

06-06-2025 12:12

Hans-Otto Baral Hans-Otto Baral

Dear all I want to ask you if you have any recent

04-06-2025 15:10

Stefan Jakobsson

Hi forum, On a herbaceous stem, possibly Aegopodi

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Small orange discs but no octospora
carl van den broeck, 14-11-2024 12:06
carl van den broeckOn November 8th I found very small orange discs stuck together along the edge of a pond in the Belgian dunes. They were on bare ground near Bryum sp. which is why I thought I was dealing with Octospora s.l.. When examining them with a microscope I saw septate cilia which does not occur in Octospora s.l.. No dung was visible in the area. Operculate ascen, 8-spored operculate ascen, oval to ovate smooth spores 14-16 x 8-9 mu, q = 1.7, paraphyses with capitate head, hyaline septate cilia at the edge (hardly visible with a magnifying glass). 99% of the spores contain one drop. Strange spores can be seen on one photo, but I think this is a contamination. Can anyone point me in the right direction? Thanks!
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Nicolas VAN VOOREN, 14-11-2024 12:10
Nicolas VAN VOOREN
Re : Small orange discs but no octospora
Why do exclude an Octospora species?
François Bartholomeeusen, 14-11-2024 17:29
Re : Small orange discs but no octospora
Hoi Carl,

Is there perhaps charcoal nearby, then Neottiella hetieri could be a possibility?

Kind regards,

François

carl van den broeck, 14-11-2024 20:31
carl van den broeck
Re : Small orange discs but no octospora
I have never identified an Octospora with cilia and the keys do not give me an acceptable species.
carl van den broeck, 14-11-2024 20:34
carl van den broeck
Re : Small orange discs but no octospora
Thanks Francois! In the meantime I found a key of Moyne of Octospora s.l. and relatives with hairy edges. I think your proposal comes close!
Lieve Deceuninck, 15-11-2024 10:36
Lieve Deceuninck
Re : Small orange discs but no octospora
En recherchant sur Google 'Octospora et setae', je trouverai  Octosporopsis, pour mois inconnu.
Nicolas VAN VOOREN, 15-11-2024 10:43
Nicolas VAN VOOREN
Re : Small orange discs but no octospora
From a phylogenetic point of view, and also morpholgically, Octosporopsis is different from Octospora (s. lato).
The presence of setae/hairs at the margin is no more a character useful to exclude a species from Octospora s. lato.
Neottiella hetieri must be considered as an Octospora, and "true" Neottiella are associated to Polytrichum.
carl van den broeck, 15-11-2024 12:53
carl van den broeck
Re : Small orange discs but no octospora
Thanks for your reactions. On http://www.octospora.de/Ohetieri.htm  I find description and pictures that  morfological perfectly match my find.