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11-06-2018 17:52

Paul Cannon

Here is a very distinctive disco on twigs of Pinus

10-06-2018 23:45

Bometon Javier Bometon Javier

En tallo herbaceo indeterminado Esporas (12) 13-2

11-06-2018 09:20

Chris Johnson

Good morning all, it's been a while since I have b

16-06-2015 20:07

Enrique Rubio Enrique Rubio

Have you some idea about this fungus growing on le

08-06-2018 19:29

Castillo Joseba Castillo Joseba

No se que pueda serEn tierra en bosque de fagus, e

10-06-2018 21:24

Riet van Oosten Riet van Oosten

Hello, Found 10-06-2018 on Typha, The Netherlands

10-06-2018 21:49

François Bartholomeeusen

Dear forum members, I suspect it is a Pyrenopeziz

10-06-2018 18:28

Blasco Rafael Blasco Rafael

Hola, esta horbilia estaba sobre madera de Salix m

10-06-2018 12:12

Castillo Joseba Castillo Joseba

Sobre un tronca caido de FagusA ver que os pareceS

08-06-2018 18:33

Enrique Rubio Enrique Rubio

Hi to everyoneThis enigmatic diaporthale makes sub

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This should be easy...
Paul Cannon, 11-06-2018 17:52
Here is a very distinctive disco on twigs of Pinus sylvestris, from a native pine forest in NE Scotland. It appears to be erumpent from the bark and initially closed, the fruit bodies are slightly stalked and smooth on the outer surface (not scurfy like encoelioid species). They are up to about 2.5 mm diam. The asci do not stain blue in iodine. Unfortunately very few contained mature spores, but those seen are 15-16.5 x 5 µm, hyaline and aseptate. The image at lower magnification is in water, the higher mag image is in warmed lactophenol to check there are no septa.

I have been looking around Tympanis and Godronia, but nothing seems to fit. Any suggestions would be much appreciated.

Best wishes

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Gernot Friebes, 11-06-2018 18:11
Re : This should be easy...
This reminds me of Pseudophacidium piceae. I would have to check if it is known to grow on Pinus...

Best wishes,
Quijada Luis, 11-06-2018 18:12
Re : This should be easy...
Not sure, maybe Potebniamyces. If you want I can studied in detail and try to sequence, I have been working this genus a little bit and I have reviewed some types, so if you want, send me an email to and we can discuss about it
Best wishes
Hans-Otto Baral, 11-06-2018 22:27
Hans-Otto Baral
Re : This should be easy...
Hi Paul
I would throw a third genus in the ring: Ascocalyx. I only know the asexual morph of A. abietis, and that looks much like yours by macroscopy. Regrettably I did not study the excipulum of the cup-shaped conidiomata.

Here the link to my drawing:
go to Helotiales, Godroniaceae

A. abietis is described with 3-septate, cylindrical ascospores unlike yours - but the question is if yours are mature or maybe the species forms septa only in overmature ascospores.
Paul Cannon, 12-06-2018 10:18
Re : This should be easy...
Thanks to all three of you for your suggestions. We'll try to sequence it at Kew, but as the only collection is not fully mature, it would not make an ideal type specimen if it turns out to be new.

Best wishes