Accès membres

Mot de passe perdu? S'inscrire

01-06-2025 09:37

Charles Aron Charles Aron

Hi All, I found this Octospora growing with liver

06-07-2025 19:36

Castillo Joseba Castillo Joseba

me mandan el material de Galicia (España) recolec

07-07-2025 19:22

David Chapados David Chapados

Hi,Does anyone know what could this anamorph be?ht

05-07-2025 12:38

Åge Oterhals

I found this pyrenomycetous fungi in pine forest o

02-07-2025 18:45

Elisabeth Stöckli

Bonsoir,Sur feuilles d'Osmunda regalis (Saulaie),

04-07-2025 20:12

Josep Torres Josep Torres

Hello.A fungus growing on the surface of a trunk o

20-06-2025 08:33

Josep Torres Josep Torres

Hello.Small, blackish, mucronated surface grains s

28-06-2025 16:00

Josep Torres Josep Torres

Hello.A tiny fungus shaped like globose black grai

04-07-2025 12:43

Castillo Joseba Castillo Joseba

me mandan el material seco de Galicia (España) 

03-07-2025 18:40

Castillo Joseba Castillo Joseba

me mandas el material seco de Galicia (España) re

« < 1 2 3 4 5 > »
Nectria on Frangula alnus
Björn Wergen, 27-07-2011 13:59
Björn WergenHi,

yesterday I have found a new Nectria on dead Frangula-twigs. It has very large spores with a length sometimes over 25 µm. The fruitbodies are clustered on a Stroma which seems not to be well developed, perithecia are about 0,2-0,4 mm and pale red to orange-red oder orange-brown. 

The interesting fact is, that the asci have almost only 4 or 6 spores. I didn't see any asci with 8 spores. Spore ornamentation seems to be smooth, without striae. I will add some photos here, perhaps someone can help me with this or at least with a good nectria-key (I have only one key with striae-spored nectria...)

best regards,
kazuya
  • message #15985
  • message #15985
Björn Wergen, 27-07-2011 15:01
Björn Wergen
Re : Nectria on Frangula alnus
note: I think the small spores are "secondary spores", aren't they? I had called them "conidia spores"...
Christian Lechat, 27-07-2011 20:37
Christian Lechat
Re : Nectria on Frangula alnus
Dear Kazuya,
could you please make a vertical section through ascomatal wall and stroma?
Conidia looks like Tubercularia.

Christian