03-06-2026 14:39
Thomas FlammerApothecia yellow, glassy-transparent, 80 - 120 ymS
03-06-2026 19:45
Miguel Ángel Ribes
Good afternoonI'm completely baffled by this suppo
16-03-2014 13:39
Enrique Rubio
HI to all I'm looking for B. Hein's article on Wi
02-06-2026 14:33
Nicolas VAN VOOREN
Hello.I'm searching for a PDF copy of the followin
18-10-2022 00:12
Valencia Lopez Francisco JavierHola amigos/asRecientemente encontré esta colecci
02-06-2026 17:58
Louis DENYBonjour forum, Sur feuille de Populus tremula, en
Hélotiale blanche sur Sambucus racemosa
Bernard CLESSE,
10-02-2026 17:42
Bonjour à toutes et tous,Pourriez-vous me donner votre avis sur cette Hélotiale récoltée sur bois pourri de sureau à grappes ?
Merci d'avance !
Bernard
Hans-Otto Baral,
10-02-2026 20:22
Re : Hélotiale blanche sur Sambucus racemosa
How old ist this find that you did not study it fresh?
I only know Hymenoscyphus geogenus with these characters. I found it mostly on Quercus but rarely on other angiosperm trees (Fagus, Betula, ...).
Usually there is a pale blue apical ring. Did you use MLZ? That might prohibit the reaction.
Bernard CLESSE,
10-02-2026 20:48
Re : Hélotiale blanche sur Sambucus racemosa
Thanks so much for your reply, Zotto.
Indeed, I used Melzer and the reaction was very, very weak, so I added J- but it was very weakly J+.
Best regards,
Bernard
Hans-Otto Baral,
10-02-2026 20:54
Re : Hélotiale blanche sur Sambucus racemosa
Good! If you wish you can send me the collection data. I once studied the type of the synonym Helotium longisporum Schweers, maybe I will publish at some time on this species.
Bernard CLESSE,
10-02-2026 20:59
Re : Hélotiale blanche sur Sambucus racemosa
OK Zotto, I"ll do it !
Bernard
Bernard