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05-04-2026 20:40

Robin Isaksson Robin Isaksson

Hi!Found i Japan on bark of Abies sp. Spores 35-4

05-04-2026 13:33

Sylvie Le Goff

Bonjour à tousPuis avoir votre avis sur ce champi

03-04-2026 17:11

Bohan Jia

Lastly, I have found these small apothecia on a co

31-03-2026 21:18

Miguel Ãngel Ribes Miguel Ángel Ribes

Good evening. oes anyone have the original descrip

31-03-2026 20:57

Stefan Blaser

Hello everybody, I hope somebody can help me with

26-03-2026 15:31

Ãke Widgren Åke Widgren

Hello,I found this one in October last year, on r

31-03-2026 16:20

Mlcoch Patrik Mlcoch Patrik

Hello, Please about help with determination. On

31-03-2026 08:19

Bernard CLESSE Bernard CLESSE

Bonjour à toutes et tous,Pourriez-vous m'aider à

30-03-2026 12:18

Sylvie Le Goff

BonjourRécolté sur la base de Pteridium aquilinu

30-03-2026 12:03

William Slosse William Slosse

Hello all,On 27/03/26, in Kraaiveld in Wingene (Be

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tiny white helotial
Yannick Mourgues, 17-12-2023 16:24
Yannick Mourgues
Hi.

Need help to ID this very tiny white helotial.

Diameter less than 0.5mm, excipulum covered with very small hairs (made by cylindrical cells, sometimes widened at the top, with last cell finely warty).

Asques IKI- without croziers, 18-27x3-4,5 µm.

Spores rounded 2,2-2,5x 2-2,4 µm, hyalins.

Very difficult for me to take good pictures.

May be these will be sufficient for an ID ?

I sequenced it, but it blasts with Peniophora lycii... Bad luck.

Yannick
  • message #77643
  • message #77643
  • message #77643
  • message #77643
Andgelo Mombert, 17-12-2023 17:03
Andgelo Mombert
Re : tiny white helotial
Salut,
Sans doute Hyphodiscus theiodeus.
Yannick Mourgues, 17-12-2023 17:11
Yannick Mourgues
Re : tiny white helotial
Merci, c'est une bonne idée, mais les rares iconographies examinées ne montrent pas des ascos blancs comme ici.

Mais on est dans le genre en tout cas !

Yannick
Yannick Mourgues, 17-12-2023 17:13
Yannick Mourgues
Re : tiny white helotial
Remarque, de tout jeunes ascomes peuvent être blanchâtres ...

De toute façon je ne vois pas autre chose.
Hans-Otto Baral, 17-12-2023 20:40
Hans-Otto Baral
Re : tiny white helotial
H. theideus has hemiamyloid asci, so when you really used IKI it must be very diluted.

The species likes to grow on Peniophora, so you have well identified the host.
Yannick Mourgues, 18-12-2023 16:49
Yannick Mourgues
Re : tiny white helotial
Thank's a lot Zotto and Andgelo.