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Mini clavule noire
Daniel Ghyselinck,
31-03-2011 21:19
J'ai récolté cette semaine, sur branche de feuillus, ce petit asco en forme de clavule, entièrement noir. La forme ressemble un peu à Acrospermum compressum, mais ici la clavule est nettement plus petite (+/- 0,5 mm de haut) - voir la photo sous la bino en haut de la planche micro jointe.
Les spores sont grises puis brunes, avec 1 à 3 cloisons à maturité et mesurent 12 - 19 x 4 - 5 µm. Asques étroites, à 8 spores unisériées.
Je n'ai pas la moindre idée... même du genre !
I collect this week, on a broad-leaved branch, this small clavulate asco, entirely black. The shape looks a bit like Acrospermum compressum, but here the clavule is smaller (+/- 0,5 mm high) - see photo under the bino at top-left of the microscopic plate.
The spores are gray than brown, with 1 to 3 septa at maturity, 12 - 19 x 4 - 5 µm. Asci narrow, with 8 uniseriate spores.
I've no idea at all... not even the genus !
Amitiés - Regards,
Daniel Ghyselinck
Gernot Friebes,
31-03-2011 21:22
Re:Mini clavule noire
Hi Daniel,
I think it is a Phaeocalicium.
Best wishes,
Gernot
I think it is a Phaeocalicium.
Best wishes,
Gernot
Daniel Ghyselinck,
31-03-2011 21:40
Re:Mini clavule noire
Thanks Gernot,
I searched the web and it seems to be OK for Phaeocalicium.
My collection grew close to Peniophora cinerea.
Is the genus Phaeocalicium a lichen ?
Daniel
I searched the web and it seems to be OK for Phaeocalicium.
My collection grew close to Peniophora cinerea.
Is the genus Phaeocalicium a lichen ?
Daniel
Gernot Friebes,
31-03-2011 21:48
Re:Mini clavule noire
to my knowledge, Phaeocalicium is a non-lichenized genus of the Mycocaliciaceae. This family includes some more non-lichenized (also lichenized?) genera of so called "pin-lichens".
Best wishes,
Gernot
Best wishes,
Gernot
Marja Pennanen,
31-03-2011 23:18
Re:Mini clavule noire
Hi Damiel,
I got to admit, that I'm a bit jealous to you ;)
Phaeocaliciums are still living only in my dreams.
Yours could be P. boreale (or maybe B. interruptum).
Congratulations from Marja
I got to admit, that I'm a bit jealous to you ;)
Phaeocaliciums are still living only in my dreams.
Yours could be P. boreale (or maybe B. interruptum).
Congratulations from Marja
Daniel Ghyselinck,
31-03-2011 23:31
Re:Mini clavule noire
Thanks Marja,
And I must admit I did not see it in the field... I took the branch to identify the Peniophora !
Well, now, the difficult part is to identify the species, I will start with your proposal, but I don't have any key of this genus.
Best regards,
Daniel
And I must admit I did not see it in the field... I took the branch to identify the Peniophora !
Well, now, the difficult part is to identify the species, I will start with your proposal, but I don't have any key of this genus.
Best regards,
Daniel
Marja Pennanen,
01-04-2011 21:43
Re:Mini clavule noire
Hi Daniel,
I'd like to know the substrate. Was there any bark left, where this grow? What was the habitat and so on. I really wish to find them some good fungi hunting day.
I got "Nordic lichen flora". It's got some keys, but I find them quite difficult. The descriptions for these Mycocaliciales are propably good enough. I could scan the Phaeocalicium sides for you. Are there some restrictions (copyright), that would prevent to add them here?
Marja
I'd like to know the substrate. Was there any bark left, where this grow? What was the habitat and so on. I really wish to find them some good fungi hunting day.
I got "Nordic lichen flora". It's got some keys, but I find them quite difficult. The descriptions for these Mycocaliciales are propably good enough. I could scan the Phaeocalicium sides for you. Are there some restrictions (copyright), that would prevent to add them here?
Marja
Daniel Ghyselinck,
01-04-2011 22:25
Re:Mini clavule noire
Hi Marja,
It was in a rather damp place, with Salix and Alnus, but also Populus at the border. The branch was only partly decorticated. It is so small and isolated that I think it is nearly impossible to see it in the field. Even under the binocular, it takes a few time to locate it !
There is an interresting article here : http://www.annbot.net/PDF/anbf33/anbf33-205.pdf
With the key in this article, I think that Ph. boreale is the best solution. Ph. interruptum has a different shape and much smaler spores. Ph. tremulicola is a good possibility too, but the stalk should be paler and it is a very small species, less than 0,33 mm height.
I just wonder how to check the K+ reaction ? Is it with Lugol ?
Daniel
It was in a rather damp place, with Salix and Alnus, but also Populus at the border. The branch was only partly decorticated. It is so small and isolated that I think it is nearly impossible to see it in the field. Even under the binocular, it takes a few time to locate it !
There is an interresting article here : http://www.annbot.net/PDF/anbf33/anbf33-205.pdf
With the key in this article, I think that Ph. boreale is the best solution. Ph. interruptum has a different shape and much smaler spores. Ph. tremulicola is a good possibility too, but the stalk should be paler and it is a very small species, less than 0,33 mm height.
I just wonder how to check the K+ reaction ? Is it with Lugol ?
Daniel
Luc Bailly,
03-04-2011 11:14
Re:Mini clavule noire
As Zotto always advises with Discomycetes, I always check IKI reaction with simple Lugol (IIRC a reaction could be doubtful in MLZ and more obvious in IKI).
Anyway, thanks for showing me a genus which I never heard of before.
Cheers - Luc BAILLY;
Anyway, thanks for showing me a genus which I never heard of before.
Cheers - Luc BAILLY;