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24-05-2020 00:52

DirkW DirkW

Salut a tous!Anybody out there, who made experienc

23-05-2020 21:03

Elisabeth Stöckli

Bonsoir, Trouvé sur branche morte aérienne d'un

24-05-2020 11:31

Camille Mertens

Bonjour à tous.Sur branche (alnus?), en bordure d

25-05-2020 10:17

Joop van der Lee

Because some of us do think that T. minuta is a st

24-05-2020 22:36

Joop van der Lee

The reason why I post all these different characte

24-05-2020 17:54

Juuso Äikäs

I visited a small swamp and found these growing on

24-05-2020 19:31

Robin Isaksson Robin Isaksson

peritheciawall does not react in koh. Spores 22-2

24-05-2020 13:55

Thorben Hülsewig

Hi there, at the beginning of May I found this Py

24-05-2020 13:09

Enrique Rubio Enrique Rubio

Hi to everybodyThese superficial globulose or barr

24-05-2020 10:38

Lothar Krieglsteiner Lothar Krieglsteiner

... found in Northern Germany (Brandenburg, Schorf

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Black asco on Rhododendron
Malcolm Greaves, 16-04-2019 15:10
Malcolm  GreavesHello

Can someone help with this found on a dead/dying Rhododendron bud. 
They were clustered on the surface (1.5mm across) and although I could find no asci the spores were 3 septate and 27 x 3.5. the whole apothecia was blued by meltzers.

  • message #57319
  • message #57319
  • message #57319
Jason Karakehian, 16-04-2019 22:01
Jason Karakehian
Re : Black asco on Rhododendron
Nick Aplin, 18-04-2019 00:23
Re : Black asco on Rhododendron
Hi Mal,

Perhaps, considering the blue tones and the fusarium-like spore, you have a Gibberella species?

Malcolm Greaves, 18-04-2019 11:28
Malcolm  Greaves
Re : Black asco on Rhododendron
Thanks for the replies. Searching for information on the suggested species (Strossmayeria and Gibberella) the latter looks most likely but as the key seems to need the anomorph information I think it will stay as Gibberella sp (possibly G zeae).