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Bonsoir à toutes et tous,Pourriez-vous m'aider à
Ciboria americana?
Camille Mertens,
25-09-2012 19:33
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
Hans-Otto Baral,
25-09-2012 21:30
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
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
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
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
Hans-Otto Baral,
25-09-2012 23:08
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
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
Re : Ciboria americana?
An option for Ciboria batschiana?
Cheers,
Raúl
Cheers,
Raúl
Michel Hairaud,
26-09-2012 09:55
Re : Ciboria americana?
Bonjour à chacun d'entre vous,
J'ai aussi pensé comme Raul à C. batschiana.
Amitiés
Michel
J'ai aussi pensé comme Raul à C. batschiana.
Amitiés
Michel
Hans-Otto Baral,
26-09-2012 10:02
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
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
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
ma première intervention sur le forum.
Camille