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30-01-2025 14:54

Karl Soler Kinnerbäck

Hi! Found this one on or next to some Juncus speci

30-01-2025 10:32

victor servranckx

Hello, I am a biology student from Belgium and on

30-01-2025 11:52

Margot en Geert Vullings

On a fallen Alnus twig we found this anamorph with

01-02-2023 19:38

Riet van Oosten Riet van Oosten

Hello, Found yesterday on Tilia. Are there two k

29-01-2025 18:12

Blasco Rafael Blasco Rafael

Hola, he encontrado estos pequeños Ascos liqueniz

28-01-2025 11:36

Stephen Martin Stephen Martin

Hello, I have found plants of Euphorbia peplus and

28-01-2025 18:00

Thomas Flammer

Substrate: Needle Picea AbiesAsci: IKI+ (blue)Shor

23-01-2025 15:46

Malcolm  Greaves Malcolm Greaves

Could I have peoples opinion on this Geoglossum.Wi

24-01-2025 18:09

Nogueira Héctor

19/01/2025 Villameca (León) España  Buenas En

28-01-2025 07:57

Thierry Blondelle Thierry Blondelle

Bonjour à tous,On cupules of FagusApo de 0.8 à 2

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pyreno with anamorph
Aafke Buijs, 01-05-2017 22:50
Dear forum,

On hard wood I found this pyrenomycete with anamorph (second picture).
At first thought of an Amphisphaeria-species but those have coloured spores as far as I know.
Perithecia partly immersed, with short necks as small dots on the upper part; spores two- sometimes three-celled, hyaline, smooth, 17.5 - 23; asci eight-spored, uni-/biseriate, about 125 - 135, ascus-tip not reacting in J.

Kind regards,

Aafke
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Gernot Friebes, 01-05-2017 22:58
Re : pyreno with anamorph
Hi Aafke,

could the substrate be Tilia? Your fungus reminds me of Hercospora tiliae.

Best wishes,
Gernot
Aafke Buijs, 01-05-2017 23:13
Re : pyreno with anamorph
Hi Gernot,

I enclose a picture of the bark, with a typical structure, perhaps you recognize it ...
I don't really know if it was on Tilia.
In water the spores measured up tot 23 microm. Does this fit within the description, Dennis mentions spores 15-18 ?

Aafke
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Gernot Friebes, 02-05-2017 10:30
Re : pyreno with anamorph
Hi Aafke,

I think the second photo in your initial post looks quite similar to Tilia (notice the relatively thick bast).

Here Enrique Rubio shows a collection of H. tiliae with spores up to 25.8 µm in length so I don't think the spore size of your collection is a concern:  https://www.asturnatura.com/fotografia/setas-hongos/hercospora-tiliae-pers-tul-c-tul-2/12658.html

Best wishes,
Gernot
Aafke Buijs, 03-05-2017 08:02
Re : pyreno with anamorph
Hi Gernot,

Then, altogether, my find (with also the anamorph) corresponds quite well to the description of Hercospora tiliae.

Thank you for your response, Gernot !

Greetings,

Aafke
Peter Püwert, 03-05-2017 14:28
Peter Püwert
Re : pyreno with anamorph
Hi all,
here a collage with the ana- and teleomorphe.
Greetings Peter.
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Aafke Buijs, 03-05-2017 23:07
Re : pyreno with anamorph
Nice collage Peter, but confusing too ...
So Hercospora tiliae has a different, non-septate anamorph.
Does this also mean that the name Hercospora tiliae is uncertain for this find ?
Peter Püwert, 04-05-2017 12:51
Peter Püwert
Re : pyreno with anamorph
Hi Aafke,
the finding is already sure. The spores of the anamorphes are right different. The species is quite frequent here.
Greetings Peter.
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