17-11-2025 19:14
herman lambertApothécie discoïde 0.6 cm diam., orangeFace hymÃ
17-11-2025 21:57
Philippe PELLICIERBonjour,Récolté sur bois de feuillu mort dur, no
16-11-2025 21:09
Robin Isaksson
Anyone recognize this acc. to pictures.? Found on
17-11-2025 21:46
Philippe PELLICIERBonjour,Récolté sur bois pourrissant de feuillu
14-11-2025 16:26
Marian Jagers
Hello everyone, On dead wood of Cytisus scoparius
15-11-2025 23:22
Mario FilippaHello,this is what I think to be Hymenoscyphus mac
15-11-2025 20:25
Riet van Oosten
Hello, Found by Laurens van der Linde, Nov. 2025
14-11-2025 18:31
Lothar Krieglsteiner
Hello,can somebody provide me with a file of:Rothe
tiny white helotial
Yannick Mourgues,
17-12-2023 16:24

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
Andgelo Mombert,
17-12-2023 17:03
Re : tiny white helotial
Salut,
Sans doute Hyphodiscus theiodeus.
Sans doute Hyphodiscus theiodeus.
Yannick Mourgues,
17-12-2023 17:11
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
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
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
Re : tiny white helotial
Thank's a lot Zotto and Andgelo.



