Accès membres

Mot de passe perdu? S'inscrire

25-02-2015 19:59

Marja Pennanen

Hello folks,these black spots were collected today

25-02-2015 20:26

Marja Pennanen

Hi again,on the same twig of Ribes nigrum with pro

25-02-2015 18:34

Blasco Rafael Blasco Rafael

Hola tengo this Muestra sobrio estiércol de oveja

24-02-2015 16:20

Blasco Rafael Blasco Rafael

Email hola tengo Muestras ESTAS vistas en casa ent

25-02-2015 14:32

Dragiša Savic

I found this asco on the bark of elm (Ulmus).I hav

24-02-2015 11:38

Blasco Rafael Blasco Rafael

Hola, tengo this Muestra Recogida sobrio estiérco

23-02-2015 11:55

Miguel Ãngel Ribes Miguel Ángel Ribes

I have always doubts to interpret the colours of O

24-02-2015 22:05

Andreas Gminder Andreas Gminder

Dear friends,   here is another collection from

24-02-2015 19:01

Andreas Gminder Andreas Gminder

Dear friends,   last December I collected in th

24-02-2015 00:39

Francisco  SÃNCHEZ Francisco SÁNCHEZ

Ces cheilymenias croissante sur bouse. Ascomes à

« < 1041 1042 1043 1044 1045 > »
Didymella? on Ribes
Marja Pennanen, 25-02-2015 19:59
Hello folks,

these black spots were collected today on Ribes nigrum. Here is still winter with snow over half a meter.
They are about 0,5-1 mm wide.
The spores are two celled, hyaline, about 20-28x8-9.
Asci are thick walled, very short stipate, 90-120x15-18.
I ended to Didymella (totally unfamiliar genus for me), but my litterature contains no fitting species. D. proximella almoust fits, but the substrate...

I hope, that someone here has better knowledge and can help: Marja

  • message #34128
  • message #34128
Alain GARDIENNET, 25-02-2015 20:16
Alain GARDIENNET
Re : Didymella? on Ribes

Hi Marja,


see towards Dothiora ribesia.


Alain

Marja Pennanen, 25-02-2015 20:28
Re : Didymella? on Ribes
Dear Alain,

I'll check that, if I can find the description...

Merci: Marja