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16-04-2019 15:10

Malcolm  Greaves Malcolm Greaves

HelloCan someone help with this found on a dead/dy

14-04-2019 16:53

Marc Detollenaere Marc Detollenaere

Dear forum, On the bark of Larix I found some som

13-01-2019 21:29

Ethan Crenson

I find this unknown (to me) asco in the same locat

17-04-2019 16:40

Jac Gelderblom

I am looking for Holm & Holm: Lophiostomatacea

16-04-2019 15:09

Thomas Læssøe

Form small pinki cushions on the surface - recall

16-04-2019 02:06

Ethan Crenson

Hello, Yesterday in New York City on Pinus strobu

16-04-2019 18:02

Ethan Crenson

I am looking for: Barr, M.E. 1982. On the Pleoma

14-04-2019 14:57

Edvin Johannesen Edvin Johannesen

I am struggling a bit to identify this one. First

15-04-2019 22:28

Riet van Oosten Riet van Oosten

Hello, Found by Jan Henk, The Netherlands. I thi

31-03-2019 23:48

Marc Detollenaere Marc Detollenaere

Hi to all, I need your help for this brown sessil

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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