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27-02-2026 17:51

Michel Hairaud Michel Hairaud

Bonjour, Quelqu'un peut il me donner un conseil p

27-02-2026 16:17

Mathias Hass Mathias Hass

Hi, Found this on Betula, rather fresh fallen twi

28-02-2026 11:54

Alain GARDIENNET Alain GARDIENNET

Hi forum,Is anyone aware if the 1936 edition of Si

28-02-2026 14:43

Alain GARDIENNET Alain GARDIENNET

A new refrence desired :Svanidze, T.V. (1984) Novy

01-03-2026 18:02

Francois Guay Francois Guay

I found this mystery Helotiales on an incubated le

01-03-2026 14:10

Antonio Couceiro Antonio Couceiro

Hola, me gustaria conocer opiniones sobre este tem

01-03-2026 20:34

Hans-Otto Baral Hans-Otto Baral

Does someone have access to Phytotaxa? I am intere

28-02-2026 11:05

Yanick BOULANGER

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

01-03-2026 18:46

Robin Isaksson Robin Isaksson

Hi! This species i se from time to time in the

01-03-2026 08:55

Michel Hairaud Michel Hairaud

Bonjour , Je souhaiterais recevoir cet article :Â

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Melampsora ??? en Salix
Castillo Joseba, 03-07-2025 18:40
Castillo Josebame mandas el material seco de Galicia (España) recolectado en hoja de Salix

no se me ocure mas que una Melampsora ?? 

A ver si hay alguna sugerencia

Saludos
Joseba
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  • message #83069
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Björn Sothmann, 04-07-2025 09:24
Björn Sothmann
Re : Melampsora ??? en Salix
Dear Joseba,

I have no idea what these yellow structures are, but I can definitely rule out a Melampsora species. Uredia of melampsora are usually found on living leaves, not on necrotic ones and they are also flatter and rather on the leaf surface, barely at edges like in your case. Finally, uredospores of Melampsora also look different with a spiny surface.

Best,

Björn
Castillo Joseba, 04-07-2025 09:51
Castillo Joseba
Re : Melampsora ??? en Salix
Hola Bjorn,  he estado pensando y creo que podría ser una puesta de algún insecto