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17-01-2026 19:35

Arnold Büschlen

Hallo, ich suche zu Cosmospora aurantiicola Lite

17-01-2026 10:41

Blasco Rafael Blasco Rafael

Hola, he descubierto que he creado una Pulvinula t

08-12-2025 17:37

Lothar Krieglsteiner Lothar Krieglsteiner

20.6.25, on branch of Abies infected and thickened

16-01-2026 00:45

Ethan Crenson

Hi all, On decorticated hardwood from a New York

16-01-2026 11:20

Castillo Joseba Castillo Joseba

Me mandan el material seco de Galicia (España) 

10-01-2026 20:00

Tom Schrier

Hi all,We found picnidia on Protoparmeliopsis mur

13-01-2026 07:28

Danny Newman Danny Newman

Chlorociboria glauca on indet. decorticate logThe

15-01-2026 15:55

Lothar Krieglsteiner Lothar Krieglsteiner

this one is especially interesting for me because

15-01-2026 10:35

Johan Boonefaes Johan Boonefaes

Last week I found this fungus, possibly a hyphomyc

13-01-2026 08:43

Danny Newman Danny Newman

Tricladium varicosporioides on indet. decorticate

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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