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29-01-2026 10:04

Jean-Paul Priou Jean-Paul Priou

Bonjour à tous, Marcel LECOMTE président de L'A

21-01-2026 16:32

Gernot Friebes

Hi,I need your help with some black dots on a lich

17-11-2009 22:22

Pablo Chacón Pablo Chacón

Bonne nuit, Voir si vous m'avez élaguée appor

07-12-2015 14:17

Zugna Marino Zugna Marino

Buon giorno a tutti, ad un primo momento, non ess

25-11-2012 20:32

Bometon Javier Bometon Javier

Ascomas cupoliformes abiertos lateralmente, himeni

25-01-2026 16:08

Malcolm  Greaves Malcolm Greaves

This Geoglossum had spores mostly 70-80 (87) with

27-01-2026 11:43

Malcolm  Greaves Malcolm Greaves

Is anyone with experience of DNA testing able to t

26-01-2026 11:49

Margot en Geert Vullings

We found this possible anamorph on a dead Cytisus

25-01-2026 23:23

Tomaz Vucko Tomaz Vucko

Hello! I found this species that resembles Delitsc

18-01-2026 12:24

Josep Torres Josep Torres

Hello.An anamorph located on the surface of a thin

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Ciboria americana?
Camille Mertens, 25-09-2012 19:33
Bonsoir,

Voici une espèce croissant sur fruit de Castanea sativa.
Diam. 6,5 - 7,5 mm.
La longueur du pied a aussitôt fait d'écarter R. echinophila
Spores : 8,5-9,6 x 4,7-5,7
Asques : 125-150 x 6,6-8,8
Vous observerez que les spores présentent une "goutelette" à chaque extrémité.
Sont-ce des noyaux?
Pensez-vous qu'il puisse s'agir de Ciboria americana?
Votre avis m'obligerait.
Camille
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Hans-Otto Baral, 25-09-2012 21:30
Hans-Otto Baral
Re : Ciboria americana?
Dear Camille

very interesting collection! Your spores contain 2 nuclei, but they are very inconspicuous transparent regions near the spore centre, well seen in one of the spores of your last image (middle above). At the spore ends are oil droplets.

 I know C. americana with a bit longer and especially narrower spores. Raul Tena Lahoz sent me very nice photos of a collection whcih I believe is C. americana. here the spores are uninucleate.

Zotto
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Camille Mertens, 25-09-2012 22:43
Re : Ciboria americana?
Dear Zotto,

Thank you for your kind answer.
The nuclei are better seen under the microscope.
However some are a little bit longer and narrower, most of
the spores seems to have a different shape that the one on
the photo you sent.
Danke shön.

Camille
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Hans-Otto Baral, 25-09-2012 23:08
Hans-Otto Baral
Re : Ciboria americana?
Yes, here we can even see the nucleoli (I assume this is stained in Lugol).

I have no idea what species this is, perhaps something polyphagous? Ciborinia pseudobifrons? Then the spores should be a bit striate.

Zotto
Raúl Tena Lahoz, 25-09-2012 23:50
Raúl Tena Lahoz
Re : Ciboria americana?
An option for Ciboria batschiana?
Cheers,
Raúl
Michel Hairaud, 26-09-2012 09:55
Michel Hairaud
Re : Ciboria americana?
Bonjour à chacun d'entre vous, 
J'ai aussi pensé comme Raul à C. batschiana.

Amitiés
Michel
Hans-Otto Baral, 26-09-2012 10:02
Hans-Otto Baral
Re : Ciboria americana?
?Yes, I fully agree. I got a collection from Italy by Bernd Fellmann which fits quite well:

HB: Ap. 3-9 mm diam, stipe 10-45 x 0.5-1 -> 0.5-2 mm. Asci *150-158 x 9-9.5(-10) µm, with croziers, IKI 3bb Sclerot. Sp. *(8-)9-11.5 x (5-)5-5.3 µm, +IKI 8-11 x 4-4.5 µm, const. 2-nucleate (many 100 sp. seen). Paraph. (*) without contents. Ectexc. t. glob., all tissue inamyloid (!).?

Zotto
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Camille Mertens, 26-09-2012 17:50
Re : Ciboria americana?
Merci à tous pour votre aimable collaboration et votre indulgence pour
ma première intervention sur le forum.


Camille