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Mot de passe perdu?

22-05-2026 21:35

A yellow synnemata (coremia) on wood

Steve Clements

Bonjour, I expected this find on old wood on our

22-05-2026 18:12

similar to Karstenia but iodine-negative - on Osmunda in moist chamber

Lothar Krieglsteiner

Lothar Krieglsteiner

... in moist chamber from Portugal.As the fungus s

22-05-2026 20:08

tiny gray asco on Pinus strobus / moss

Ethan Crenson

Hello all, Yesterday in NYC I was visiting an e

11-01-2022 16:36

Literature request: Raitviir (2004) Revised synopsis of Hyaloscyphaceae?

Jason Karakehian

Jason Karakehian

Hi does anyone have a digital copy of Raitviir A (

20-05-2026 17:47

Mollisia on Juncus

Margot en Geert Vullings

We found this Mollisia on dead Juncus stems mown l

22-05-2026 14:47

Rebentischia-like on Acer campestre

Gernot Friebes

Hi,superficial ascomata collected on bark of a liv

22-05-2026 14:44

minute Saccobolus from cow-dung (moist chamber from Portugal)

Lothar Krieglsteiner

Lothar Krieglsteiner

in unripe condition citrine yellow, then soon fadi

22-05-2026 13:29

Pseudophacidium ?necans on Vaccinium myrtillus

Gernot Friebes

Hi,I am curious to hear your opinion on this mater

22-05-2026 10:59

Leptosphaeria? sur Phragmites

Nicolas VAN VOOREN

Nicolas VAN VOOREN

Trouvé sur Phragmites, ce que je pense être un L

20-05-2026 21:49

Lachnum on Juncus -> Lachnum pudicellum

Margot en Geert Vullings

We found this Lachnum on Juncus stems mown last ye

Trichopezizella rubroguttata (?) sur Polygonatum multiflorum

Bernard CLESSE, 03-02-2018 21:28

Bernard CLESSE

Bonsoir tout le monde,

Trouvé récemment ce que je pense être Trichopezizella rubroguttata sur sceau de Salomon multiflore. Les asques ont systématiquement un crochet à la base.

Qu'en pensez-vous ?

Bernard

Hans-Otto Baral, 03-02-2018 21:46

Hans-Otto Baral

Re : Trichopezizella rubroguttata (?) sur Polygonatum multiflorum

It is a good question, but the asci look a bit strange, their contents are guttulate unlike these Trichopezizellas. The asci are amyloid?
You don't find living asci and free spores?

Bernard CLESSE, 03-02-2018 21:49

Bernard CLESSE

Re : Trichopezizella rubroguttata (?) sur Polygonatum multiflorum

Good evening Zotto,

The asci are IKI- and I have not found any spores, but lots of small conidia.

Bernard

Bernard CLESSE, 03-02-2018 21:52

Bernard CLESSE

Re : Trichopezizella rubroguttata (?) sur Polygonatum multiflorum

I'll double check if I see spores in other apothecia

Bernard

Bernard CLESSE, 03-02-2018 22:31

Bernard CLESSE

Re : Trichopezizella rubroguttata (?) sur Polygonatum multiflorum

In fact, these thousands of small spores (or conidia?) of different sizes and shapes that I see under the microscope come from inside asci, I do not understand much about it.

Bernard

Bernard CLESSE, 05-02-2018 14:49

Bernard CLESSE

Re : Trichopezizella rubroguttata (?) sur Polygonatum multiflorum

Hi Zotto,

Would you have a conclusion for this Trichopezizella with these asci and these strange spores ?

Bernard

Hans-Otto Baral, 05-02-2018 16:08

Hans-Otto Baral

Re : Trichopezizella rubroguttata (?) sur Polygonatum multiflorum

Yes, now I have. It was my suspicion, but I wasn't sure at all. You have two organisms in one: T. nidulus with the hymenialparasite Helicogonium- I guess a new species.

Would be good to photograph more of the normal spores, they are actually the ascuspores. Especially the stage when they produce a terminal conidium is important since some species form conidia on the broader and and some on the narrower, but this is a bit variable.

In any case spore and conidial size should be measured.

You can consult my paper on the genus in Nova Hedwigia 69: 1-71.

I send it by mail.

Zotto

Bernard CLESSE, 05-02-2018 16:14

Bernard CLESSE

Re : Trichopezizella rubroguttata (?) sur Polygonatum multiflorum

Interesting! I learn every day (I did not know there were parasitic fungi inside asci). I will wait for your mail to see more clearly.

Thank you very much, Zotto!

Hans-Otto Baral, 05-02-2018 17:28

Hans-Otto Baral

Re : Trichopezizella rubroguttata (?) sur Polygonatum multiflorum

Not inside asci, the complete asci belong to the parasite. Therefore they are inamyloid (in all Helicogonium), and have croziers.

Bernard CLESSE, 05-02-2018 17:33

Bernard CLESSE

Re : Trichopezizella rubroguttata (?) sur Polygonatum multiflorum

Ah OK, Zotto, I understand better and so I photographed helicogonium asques ...
Thank you for your additional explanations

Bernard