04-11-2025 09:07
Josep Torres
Hello.A suspected Hymenoscyphus sprouting on a thi
04-11-2025 12:43
Edvin Johannesen
Hi! One more found on old Populus tremula log in O
03-11-2025 21:34
Edvin Johannesen
These tiny (0.4-0.5 mm diam.), whitish, short-stip
28-10-2025 15:37
Carl FarmerI'd be grateful for any suggestions for this strik
03-11-2025 16:30
Hans-Otto Baral
Hello I want to ask you if you have found this ye
28-10-2025 19:33
Nicolas Suberbielle
Bonjour à tous,Je voudrais votre avis sur cette r
Pinkish Brown Coprotus on Cow Dung
Peter Thompson,
27-10-2013 09:34
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.
Michel Delpont,
27-10-2013 19:45
Re : Pinkish Brown Coprotus on Cow Dung
Good evening Peter.
Asci amyloid they are or not? You'd have to check that.
Michel.
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.
Sorry, I forgot to say that the asci show no reaction to lugol.
Best Wishes,
Peter.
Michel Delpont,
27-10-2013 21:22
Re : Pinkish Brown Coprotus on Cow Dung
Another question Peter. Paraphyses are they pigmented?
Michel.
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.
I see no pigmentation in the paraphyses.
Peter.
Norbert Heine,
27-10-2013 23:39
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
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
Re : Pinkish Brown Coprotus on Cow Dung
Agree with Norbert, I do not think another fungus.
Michel
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.
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.