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27-10-2013 09:34

Peter Thompson

Hello Everyone,I recently found a Coprotus species

28-10-2013 09:26

Yannick Mourgues Yannick Mourgues

Bonjour à tous.Qui saurait où je peux trouver le

17-10-2013 14:09

Gilbert MOYNE

Bonjour,Un petit asco qui me pose problème :Habit

24-10-2013 22:45

Ralph Vandiest Ralph Vandiest

Hello,I found these peziza at the edges of a more

22-10-2013 21:51

Jean-Luc Ranger

Bonjour à tous, Voici une Otidea qui semble corre

23-10-2013 18:19

FRANCIS FOUCHIER

Dear all, does anyone have a digital copy of the

20-10-2013 12:53

Rubén Negrín

Hola a todos. Sigo el foro pero es la primera vez

22-10-2013 17:08

Enrique Rubio Enrique Rubio

Can you help me with this article? Schumacher, T.;

17-10-2013 21:54

FRANCIS FOUCHIER

1) Est-ce bien un Coccomyces?D'après la clé de S

20-10-2013 23:43

Alain BRISSARD

Rebonsoir à tousLa encore je sollicite votre cont

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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.