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28-02-2026 11:05

Peziza
Yanick BOULANGER

Bonjour à tousLe 24/02/2026 à Montmacq, devant m

23-12-2025 08:27

Hymenoscyphus?
Josep Torres Josep Torres

Hello.Small, yellowish ascomata, with very short a

08-03-2026 14:05

Helvella lacunosa
Thierry Blondelle Thierry Blondelle

Bonjour à tous,Sur 3 récoltes supposées de H. l

07-03-2026 22:22

Volutella?
Josep Torres Josep Torres

Hello.Some very tiny conidiomes collected in the D

07-03-2026 13:06

Phaeohelotium parasulphuratus ?
éric ROMERO éric ROMERO

Bonjour tous, Sur cône d'épicea fortement imbu,

06-03-2026 17:51

Orbilia?
William Slosse William Slosse

Good evening all,On March 4, 2026, I found the fol

05-03-2026 16:30

Is this Diaporthe rudis?
François Bartholomeeusen

Dear forum members, On the 2nd of February 2026,

06-03-2026 09:41

indian literature
Alain GARDIENNET Alain GARDIENNET

Hi forum, I'm now looking for another reference c

05-03-2026 10:07

White apothecia on pine cone
Hulda Caroline Holte

Hello, I found and collected this species growing

05-03-2026 19:29

Ciboria caucus?
William Slosse William Slosse

Good evening everyone,On March 4, 2026, I found th

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Hélotiale blanche sur Sambucus racemosa
Bernard CLESSE, 10-02-2026 17:42
Bernard CLESSEBonjour 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
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Hans-Otto Baral, 10-02-2026 20:22
Hans-Otto Baral
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
Bernard CLESSE
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
Hans-Otto Baral
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
Bernard CLESSE
Re : Hélotiale blanche sur Sambucus racemosa
OK Zotto, I"ll do it !

Bernard