27-04-2026 17:41
Lothar Krieglsteiner
.. Algarve, same leaf than the last post. The con
27-04-2026 18:05
Lothar Krieglsteiner
... still attached at standing tree. The green con
27-04-2026 17:16
Lothar Krieglsteiner
.. Algarve, moist lying.The conidiomata look like
27-04-2026 12:54
Steve ClementsBonjour. Ce petit champignon blanc résupiné et
27-04-2026 09:59
Pauline. PennaBonjour Can anyone advise me on these pycnidia fo
22-04-2026 20:54
Enrique Rubio
Hi to everybody.This Pyrenopeziza grew in moist le
24-04-2026 03:16
David Chapados
Found while looking at something else from wood in
22-04-2026 01:06
Richard VALERI
Bonjour à tous.Je vous présente cette Nectria s.
Exosporium tiliae
Thierry Blondelle,
16-02-2026 18:34
Bonjour,La micro de cet anamorphe de Hercospora sur Tilia me pose un problème. Je n'arrive pas à distinguer les conidies des conidiophores car il me semble qu'ils ont sensiblement les mêmes longueurs.
Y a t-il des critères pour les différencier ?
Merci à vous
Thierry B
Mathias Hass,
16-02-2026 20:48
Re : Exosporium tiliae
In my experinece you can clearly see the long brown multiseptate conidiophores of Exosporium tiliae, compared to Helminthosporium oligosporum with short conidiophores and a very compact structure. So I think this is Helminthosporium oligosporum. The conidia are very variable in shape and size. I don't see anything that looks like a conidiophore on your pictures, except the short dark brown things on picture 2. I think all the rest are all conidia. However, there may be other possibilities on Tilia that I'm unware of.
Cheers Mathias
Thierry Blondelle,
17-02-2026 00:03
Re : Exosporium tiliae
Hello Mathias,
You're right. Conidiophores of H. oligosporum are really shorter.
Thanks.
Thierry
You're right. Conidiophores of H. oligosporum are really shorter.
Thanks.
Thierry