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08-11-2025 00:29

Francois Guay Francois Guay

I found this species in Quebec, Canada, on herbace

06-11-2025 16:50

Rot Bojan

Hello! Yesterday I found a fungus on or near a nee

04-11-2025 14:53

Josep Torres Josep Torres

Hello.Very small, globose, mucronate perithecia, b

05-11-2025 11:33

Pierre Repellin

Bonjpur,J'ai trouvé, sur une hampe florale d'Alli

04-11-2025 09:07

Josep Torres Josep Torres

Hello.A suspected Hymenoscyphus sprouting on a thi

04-11-2025 12:43

Edvin Johannesen Edvin Johannesen

Hi! One more found on old Populus tremula log in O

03-11-2025 21:34

Edvin Johannesen Edvin Johannesen

These tiny (0.4-0.5 mm diam.), whitish, short-stip

03-11-2025 19:41

David Chapados David Chapados

Hi,Does anyone knows which genus could this be? G

28-10-2025 15:37

Carl Farmer

I'd be grateful for any suggestions for this strik

03-11-2025 16:30

Hans-Otto Baral Hans-Otto Baral

Hello I want to ask you if you have found this ye

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Coprotus leucopocillum ?
Maren Kamke, 08-07-2013 06:48
Maren KamkeHi 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
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Chris Yeates, 08-07-2013 09:51
Chris Yeates
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
Michel Delpont, 08-07-2013 11:57
Michel Delpont
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.
Norbert Heine, 08-07-2013 16:58
Norbert Heine
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


Björn Wergen, 08-07-2013 18:40
Björn Wergen
Re : Coprotus leucopocillum ?
Hi Maren,

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
Michel Delpont
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.
Maren Kamke, 09-07-2013 18:10
Maren Kamke
Re : Coprotus leucopocillum ?
Hi everybody,
thank you for your help. Now even I saw the apiculate ;)
This is T. keithii.
Regards Maren
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