27-04-2026 20:52
Lothar Krieglsteiner
Found on hanging tiwg of Olea europaea in dried-ou
28-04-2026 22:51
Bernard CLESSE
Bonsoir à toutes et tous,Pourriez-vous m'aider à
29-04-2026 08:01
Lothar Krieglsteiner
... on twig attached to small tree of Citrus auran
29-04-2026 10:44
Lothar Krieglsteiner
growing at moist, drying-out soil at the side of a
28-04-2026 20:33
Vitus SchäfftleinHello, I found Trochila ilicina on Ilex aquifoliu
28-04-2026 21:50
Pablo Sandoval
Hola a todos,Espero se encuentren bien. Hace mucho
27-04-2026 18:05
Lothar Krieglsteiner
... still attached at standing tree. The green con
28-04-2026 20:07
Lothar Krieglsteiner
... on twig in the air at standing Ceratonia siliq
27-04-2026 18:48
Tony MoverleyCollected 23rd April 2026, Norfolk, EnglandSwarms
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