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20-06-2020 15:39

Castillo Joseba Castillo Joseba

me mandan una muestra en seco, recolectada en cañ

19-06-2020 21:45

Castillo Joseba Castillo Joseba

me mandan esta muestra seca reco0lectada en Phragm

19-06-2020 22:15

Pavol Palo

Hello friends, may I ask you for help ?  Fruitb

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Castillo Joseba Castillo Joseba

Reco9lectada en Phragmites australisNo tengo ni id

17-06-2020 21:54

Hardware Tony Hardware Tony

Not sure if anyone can help here, as rather unusua

18-06-2020 22:01

Stefan Jakobsson

Here a Lachnum I am not quite sure about. It is wh

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Alvarado Cordobes Manuel Alvarado Cordobes Manuel

Haciendo fotos a una planta de Opuntia megacanthaÂ

18-06-2020 23:47

Edvin Johannesen Edvin Johannesen

Apothecia 1-2 mm, convex when moist, concave or wr

15-06-2020 01:15

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Hello all,I have a difficult situation with this p

01-11-2017 21:48

Bernard CLESSE Bernard CLESSE

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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.
Thanks

Mal
  • message #57319
  • message #57319
  • message #57319
Jason Karakehian, 16-04-2019 22:01
Jason Karakehian
Re : Black asco on Rhododendron
Strossmayeria?
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?

Cheers,
Nick
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).

Mal