21-03-2026 15:13
Lepista ZacariasHello everyone, Does any one know of any literatu
20-10-2017 09:23
Garcia SusanaEste otro crecía en el mismo trocito de madera qu
20-03-2026 16:16
Edvin Johannesen
These 0.5 mm diam. acervuli were breaking through
19-03-2026 19:34
Filip Fuljer
Hello everyone,a few days ago I collected this str
19-03-2026 18:25
William Slosse
Good evening everyone, On 18/03/26 I found a few
17-03-2026 10:09
François Freléchoux
Bonjour, Voici la description rapide d'un petit d
19-03-2026 17:50
Enrique Rubio
Hi to everybodyThese thiny, blackish pseudothecia
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