13-09-2025 14:10
Wim de GrootWe found this hymenoscyphus on rubus fruticulosis.
11-09-2025 16:57
Jason Karakehian
Our revision of Marthamycetales (Leotiomycetes) is
13-09-2025 14:01
Thomas Flammerdark brown apothecia, splitIKI-Spores biguttulate
10-09-2025 23:53
Marcel Heyligen
Found on Robinia pseudoacasia together with Diapor
10-09-2025 17:18
Blasco Rafael
Hola, encontre este estiercol de vaca estos apotec
02-09-2025 11:34
Thomas Læssøehttps://svampe.databasen.org/observations/10527903
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.