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30-06-2025 16:56

Lydia Koelmans

Please can anyone tell me the species name of the

01-07-2025 23:37

Josep Torres Josep Torres

Hello.A Pleosporal symbiotic organism located and

30-06-2025 12:09

Edvin Johannesen Edvin Johannesen

This tiny, rather "rough" erumpent asco was found

30-06-2025 06:57

Ethan Crenson

Hi all, Another find by a friend yesterday in Bro

30-06-2025 19:05

ALAIN BOUVIER

Bonjour à toutes et à tousJe cherche à lire l'a

30-06-2025 14:45

Götz Palfner Götz Palfner

This is a quite common species on Nothofagus wood

25-06-2025 16:56

Philippe PELLICIER

Bonjour, pensez-vous que S. ceijpii soit le nom co

29-06-2025 18:11

Ethan Crenson

Hello all, A friend found this disco yesterday in

28-06-2025 17:10

Peter Welt Peter Welt

I'm looking for: RANALLI, M.E., GAMUNDÍ, I.J. 19

28-06-2025 16:00

Josep Torres Josep Torres

Hello.A tiny fungus shaped like globose black grai

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White Calycina with Chalara-anamorph
Enrique Rubio, 06-09-2019 18:25
Enrique RubioSmall, white, substipitate or broadly stipitate apothecia erumpent from bark of Quercus robur (soc. Rosellinia corticium). Asci 8-spored, IKI b with apical apparatus of the Calycina-type, arising from croziers. Ascospores usually bicellular but also short ellipsoid and unicellular. Excipulum with highly developed textura oblita. Many Chalara-like conidia attached to the hymenophoral cells.
Have yo some idea for me?
Many thanks again.
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Hans-Otto Baral, 06-09-2019 22:28
Hans-Otto Baral
Re : White Calycina with Chalara-anamorph
I am sorry I cannot say. Apos look a bit immature. A positive iodine reaction I cannot see.
Enrique Rubio, 07-09-2019 00:44
Enrique Rubio
Re : White Calycina with Chalara-anamorph
As you well know, it is not very easy to study a very mature Calycina in good condition.
Here is an image of the positive IKI reaction.
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Hans-Otto Baral, 07-09-2019 08:57
Hans-Otto Baral
Re : White Calycina with Chalara-anamorph
It is strange, in this very good phoot I see the ring but no colour.
Hans-Otto Baral, 07-09-2019 08:57
Hans-Otto Baral
Re : White Calycina with Chalara-anamorph
It is strange, in this very good phoot I see the ring but no colour.
Enrique Rubio, 07-09-2019 09:02
Enrique Rubio
Re : White Calycina with Chalara-anamorph
The colour of the weakly positive ring is very pale blue
Hans-Otto Baral, 07-09-2019 09:13
Hans-Otto Baral
Re : White Calycina with Chalara-anamorph
Ws this a twig or a thick branch? Lying on the moist ground?

From Mirek Gryc I got the suggestion that this could be related to calycina italica, but I think the large oil drops forbid such identity, also the shorter spores and more refractive VBs in the paraphyses.
Enrique Rubio, 07-09-2019 09:17
Enrique Rubio
Re : White Calycina with Chalara-anamorph
The branch, lying on the moist ground, was 50 mm thick.
But the excipulum has no vesiculous cells and this makes it even further away from italica.
Mirek Gryc, 07-09-2019 10:38
Re : White Calycina with Chalara-anamorph
In fact, I wanted to confirm the identification of the collection I found.
The spores also contained oil drops. There were, of course, far fewer of them. That is why this collection interested me.

However, there are many more differences between our collections, which rather excludes this species.

Mirek
Enrique Rubio, 07-09-2019 20:40
Enrique Rubio
Re : White Calycina with Chalara-anamorph
Thank you Zotto and Mirek
Thank you for your kindly help.