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Bonsoir à toutes et tous,Pourriez-vous m'aider à
Coprotus leucopocillum ?
Maren Kamke,
08-07-2013 06:48
Hi everybody,I found this fungus on horsedung.
Apothecia 0,5 mm, somewhat reddish with potruding hyalin asci.
Spores hyalin, smooth, (17-19,5) 18,45x9,02 (8,5-10) µm. Asci operculate, iodine reaktion negative, cylindric, uniseriat, very long 210x18 µm. Blue iodine reaktion of the excipulum. Paraphyses inflated up to 6 µm, with light reddish content, not curved.
I'm not sure of C. leucopocillum because of the length of the asci.
Thanks
Regards Maren
Chris Yeates,
08-07-2013 09:51
Re : Coprotus leucopocillum ?
Hi Maren
I think these spores are proportionately too narrow for C. leucopocillum (do you have a Q value?). Your final photograph seems to show a selective blueing of some of the asci, rather than of the excipulum, such as you might find in (inter alia) Thecotheus spp. Is this just an optical illusion?
best wishes
Chris
I think these spores are proportionately too narrow for C. leucopocillum (do you have a Q value?). Your final photograph seems to show a selective blueing of some of the asci, rather than of the excipulum, such as you might find in (inter alia) Thecotheus spp. Is this just an optical illusion?
best wishes
Chris
Michel Delpont,
08-07-2013 11:57
Re : Coprotus leucopocillum ?
Hello Maren et Chris.
It seems that this fungus immaturity should check the reaction of the asci, the presence of reddish tint away from the kind Coprotus, and guide rather to Ascobolus.
Regards.
Michel.
It seems that this fungus immaturity should check the reaction of the asci, the presence of reddish tint away from the kind Coprotus, and guide rather to Ascobolus.
Regards.
Michel.
Norbert Heine,
08-07-2013 16:58
Re : Coprotus leucopocillum ?
Hi Maren,
Thecotheus is really a very good idea!
In my opinion this is Thecotheus keithii.
This species is not rare on horse dung and I found it several times.
Last year we discussed this species at pilzforum.eu.
Look here:
http://www.pilzforum.eu/board/thema-dungpilze?page=13
(pieces 245-256)
Best regards
Norbert
Thecotheus is really a very good idea!
In my opinion this is Thecotheus keithii.
This species is not rare on horse dung and I found it several times.
Last year we discussed this species at pilzforum.eu.
Look here:
http://www.pilzforum.eu/board/thema-dungpilze?page=13
(pieces 245-256)
Best regards
Norbert
Björn Wergen,
08-07-2013 18:40
Re : Coprotus leucopocillum ?
Hi Maren,
there is another comparison:
Thecotheus keithii
I have the same opinion, this should be T. keithii.
regards, björn
there is another comparison:
Thecotheus keithii
I have the same opinion, this should be T. keithii.
regards, björn
Michel Delpont,
08-07-2013 21:14
Re : Coprotus leucopocillum ?
Sorry, excuse me for my mistake, I answered too quickly and I was not able to see the apiculate. Yes, definitely a Thecotheus.
Michel.
Michel.
Maren Kamke,
09-07-2013 18:10
Re : Coprotus leucopocillum ?
Hi everybody,
thank you for your help. Now even I saw the apiculate ;)
This is T. keithii.
Regards Maren
thank you for your help. Now even I saw the apiculate ;)
This is T. keithii.
Regards Maren
