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05-04-2026 22:46

Lothar Krieglsteiner Lothar Krieglsteiner

on wood of Ceratonia, Algarve, 3.4.2026.The color

05-04-2026 13:33

Sylvie Le Goff

Bonjour à tousPuis avoir votre avis sur ce champi

05-04-2026 20:40

Robin Isaksson Robin Isaksson

Hi!Found i Japan on bark of Abies sp. Spores 35-4

03-04-2026 17:11

Bohan Jia

Lastly, I have found these small apothecia on a co

31-03-2026 21:18

Miguel Ãngel Ribes Miguel Ángel Ribes

Good evening. oes anyone have the original descrip

31-03-2026 20:57

Stefan Blaser

Hello everybody, I hope somebody can help me with

26-03-2026 15:31

Ãke Widgren Åke Widgren

Hello,I found this one in October last year, on r

31-03-2026 16:20

Mlcoch Patrik Mlcoch Patrik

Hello, Please about help with determination. On

31-03-2026 08:19

Bernard CLESSE Bernard CLESSE

Bonjour à toutes et tous,Pourriez-vous m'aider à

30-03-2026 12:18

Sylvie Le Goff

BonjourRécolté sur la base de Pteridium aquilinu

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Pale Yellow Ascomycete Becoming Creamy Orange
Peter Thompson, 28-01-2014 10:53
Hello Everyone,

I have been sent fruit bodies of a pale yellow asco, soon becoming a creamy orange colour, growing on dead, attached twigs of Taxus baccata, which are losing their bark.

The fruit bodies range between flat discs and convex cushions (illustrated).

The microscopy is attached. Many of the 1-septate spores have one cell wider than the other. The septum is either central or slightly nearer the lower end.

There do not seem to be many ascomycetes which grow on Taxus baccata (none in the Ascofrance database). Having spent a few hours investigating, I am still none the wiser.

I wonder if anyone has encountered anything like this and might know what it is? 

Thank you,
Peter Thompson.
  • message #27125
  • message #27125
Hans-Otto Baral, 28-01-2014 11:22
Hans-Otto Baral
Re : Pale Yellow Ascomycete Becoming Creamy Orange
Hi Peter

in my database I find only a Phacidium dearnessii on Taxus needles with spores 6-11 x 3.5-5, but that species has aseptate spores and apos with large marginal lobes.

Zotto.
Martin Bemmann, 28-01-2014 11:48
Martin Bemmann
Re : Pale Yellow Ascomycete Becoming Creamy Orange
Hi Peter,

Bioinfo UK is a good source to check: http://www.bioinfo.org.uk/html/Taxus_baccata.htm

They list a lot of fungi on T.b.

regards
Martin
Hans-Otto Baral, 28-01-2014 12:33
Hans-Otto Baral
Re : Pale Yellow Ascomycete Becoming Creamy Orange
That's good, thanks Martin. But I see only Cryptocline as helotialean fungus listed. That coelomycete should be connected to something but the ana-teleo server is presently out of work.

Zotto
Peter Thompson, 28-01-2014 12:51
Re : Pale Yellow Ascomycete Becoming Creamy Orange
Hello Martin and Zotto,

Thank you for your replies.

I will have a good look through the list of fungi associated with Taxus. I was also sent Bionectria ralfsii, which is listed, though it was found over 100 miles from Cornwall, as originally described by E&E.

With Best Wishes,
Peter.