11-03-2026 16:24
Terje KristiansenOn Lonicera small peritecia with seta. Asci with 8
11-03-2026 14:14
Gernot FriebesHi,I would like to share a collection of Scopinell
10-03-2026 18:08
Marc Detollenaere
Dear Forum,On stems of Arctium, I found some downy
05-03-2026 10:07
Hulda Caroline HolteHello, I found and collected this species growing
07-03-2026 13:06
éric ROMERO
Bonjour tous, Sur cône d'épicea fortement imbu,
08-03-2026 14:05
Thierry Blondelle
Bonjour à tous,Sur 3 récoltes supposées de H. l
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.