Accès membres

Mot de passe perdu? S'inscrire

16-09-2025 12:53

Philippe PELLICIER

Pézizes de 1-4 mm, brun grisâtres, sur les capsu

03-09-2025 12:44

Enrique Rubio Enrique Rubio

Hi to somebody.I would like to know your opinion o

15-09-2025 14:40

Nicolas VAN VOOREN Nicolas VAN VOOREN

Hello.I'm searching for a digital copy of the seco

14-09-2025 22:16

Philippe PELLICIER

Apothécies petites jusquà 3 mm, oranges, avec de

13-09-2025 14:01

Thomas Flammer

dark brown apothecia, splitIKI-Spores biguttulate

10-09-2025 17:18

Blasco Rafael Blasco Rafael

Hola, encontre este estiercol de vaca estos apotec

13-09-2025 14:10

Wim de Groot

We found this hymenoscyphus on rubus fruticulosis.

11-09-2025 16:57

Jason Karakehian Jason Karakehian

Our revision of Marthamycetales (Leotiomycetes) is

10-09-2025 23:53

Marcel Heyligen Marcel Heyligen

Found on Robinia pseudoacasia together with Diapor

02-09-2025 11:34

Thomas Læssøe

https://svampe.databasen.org/observations/10527903

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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.