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03-03-2026 20:34

Miguel Ãngel Ribes Miguel Ángel Ribes

Good eveningThese small, amphora-shaped perithecia

28-02-2026 11:54

Alain GARDIENNET Alain GARDIENNET

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

02-03-2026 22:07

Jorge Hernanz

Buenas noches!Entre musgos, bajo Pinus halepensis

01-03-2026 18:02

Francois Guay Francois Guay

I found this mystery Helotiales on an incubated le

28-02-2026 14:43

Alain GARDIENNET Alain GARDIENNET

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

01-03-2026 18:46

Robin Isaksson Robin Isaksson

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

26-02-2026 22:06

Malcolm  Greaves Malcolm Greaves

Can someone explain the features that split Geoscy

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

01-03-2026 14:10

Antonio Couceiro Antonio Couceiro

Hola, me gustaria conocer opiniones sobre este tem

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Nectria on Populus bark
Enrique Rubio, 27-01-2017 17:55
Enrique RubioHi again
Could this fungus be simply Nectria cinnabarina on Populus nigra bark? The perithecia are up to 0.5 mm, not collapsing when dry, with a dark mammate region around the ostiole. Conidiomata synnmatous, conidia ovoid, smooth and hyaline. Ascomatal walls slightly purple in KOH or lactic acid, with no clear psedoparenchimatous structure.
In afirmative case, is common this so long tubercularia anamorph?
Thanks again for your help.
  • message #46803
  • message #46803
  • message #46803
Christian Lechat, 27-01-2017 19:00
Christian Lechat
Re : Nectria on Populus bark
Hi Enrique,
your fungus (ascomata) is Thelonectria discophora (asexual morph cylindrocarpon-like) ,
and the synnemata  are asexual morph of another fungus.
Cheers!
Christian
Enrique Rubio, 27-01-2017 19:04
Enrique Rubio
Re : Nectria on Populus bark
Hi Christian
Thanks. A forced association created by me!