05-03-2026 10:07
Hulda Caroline HolteHello, I found and collected this species growing
05-03-2026 16:30
François BartholomeeusenDear forum members, On the 2nd of February 2026,
19-02-2026 17:49
Salvador Emilio JoseHola buenas tardes!! Necesito ayuda para la ident
03-03-2026 20:34
Miguel Ángel Ribes
Good eveningThese small, amphora-shaped perithecia
01-03-2026 18:02
Francois Guay
I found this mystery Helotiales on an incubated le
28-02-2026 14:43
Alain GARDIENNET
A new refrence desired :Svanidze, T.V. (1984) Novy
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