Accès membres

Mot de passe perdu? S'inscrire

04-06-2026 23:53

Stip Helleman Stip Helleman

Dear all, someone can get acces to this article f

19-05-2026 10:27

Patrice TANCHAUD

Bonjour, récolte récente sur terre retournée i

04-06-2026 18:39

Gernot Friebes

Hi,I collected this species in two different locat

22-05-2026 13:29

Gernot Friebes

Hi,I am curious to hear your opinion on this mater

04-06-2026 15:28

Tony Cumberlidge

I have recently found the very helpful European Ke

04-06-2026 10:50

François Freléchoux François Freléchoux

Bonjour, J'ai trouvé hier un petit asco observé

04-06-2026 07:02

François Freléchoux François Freléchoux

Bonjour, Voici la description d'une espèce qui p

04-06-2026 13:34

Gernot Friebes

Hi,I am interested to hear your opinion on this Le

04-06-2026 11:36

Gernot Friebes

Hi,found on Vaccinium myrtillus.Asci: IKI –, 8-s

04-06-2026 11:14

Philippe PELLICIER

Bonjour, Sur bois mort de conifère (Larix, Pinus

« < 1 2 3 4 5 > »
Pinkish Brown Coprotus on Cow Dung
Peter Thompson, 27-10-2013 09:34
Hello Everyone,

I recently found a Coprotus species growing gregariously on wet cow dung. It looks a pinkish brown colour.

Form various keys, including the one in Ascofrance, I do not find a satisfactory match for this sample. The closest one that I can find microscopically is Coprotus granuliformis, but the fruit bodies are supposed to be whitish in this species.

I have attached an image of the fruit bodies and a sketch of the microscopy. There are two sets of measurements for the asci, as there was a noticeable width variation. The wider asci might be down to squashing in preparation for microscopy.

I wonder if anyone can help with an identification, please.

Thank you in advance,
Best Wishes,
Peter.
  • message #25561
  • message #25561
Michel Delpont, 27-10-2013 19:45
Michel Delpont
Re : Pinkish Brown Coprotus on Cow Dung
Good evening Peter.

Asci amyloid they are or not? You'd have to check that.

Michel.
Peter Thompson, 27-10-2013 21:02
Re : Pinkish Brown Coprotus on Cow Dung
Hello Michel,

Sorry, I forgot to say that the asci show no reaction to lugol.

Best Wishes,
Peter.
Michel Delpont, 27-10-2013 21:22
Michel Delpont
Re : Pinkish Brown Coprotus on Cow Dung
Another question Peter. Paraphyses are they pigmented?

Michel.
Peter Thompson, 27-10-2013 21:38
Re : Pinkish Brown Coprotus on Cow Dung
Hello Michel,

I see no pigmentation in the paraphyses.

Peter.
Norbert Heine, 27-10-2013 23:39
Norbert Heine
Re : Pinkish Brown Coprotus on Cow Dung
Hallo Peter,

as far as I can see this should be Coprotus granuliformis!
The fruitbodies are whitish when young, but will be yellow to dirty orange when get old!

This is a typical species on cowdung!

Norbert
Michel Delpont, 28-10-2013 09:07
Michel Delpont
Re : Pinkish Brown Coprotus on Cow Dung
Agree with Norbert, I do not think another fungus.

Michel
Peter Thompson, 28-10-2013 09:43
Re : Pinkish Brown Coprotus on Cow Dung
Hello Michel and Norbert,

Thank you for your help with this.

I did feel that C. granuliformis was the closest match for the microscopy, but did not consider the discolouration of the fruit bodies with age.

With Best Wishes,
Peter.