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Marc Detollenaere
Hello Forum,On rotten wood of Fagus, I found some
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Ethan CrensonHello friends, On Sunday, in the southern part of
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Andreas Millinger
Good evening,failed to find an idea for this fungu
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Lothar Krieglsteiner
20.6.25, on branch of Abies infected and thickened
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Nicolas Suberbielle
Bonjour à tous, Je recherche cette publication :
Coprotus disculus?
Chris Johnson,
09-12-2015 15:50
Found on Oryctolagus cuniculus dung, apothecia 200 x 170 µm, inamyloid.
Asci 67-90 x 14-19 µm.
Paraphyses filiform, some curved at apex but I wouldn't descibe them as uncinate.
Spores 11.5-14.9 x 7.0-8.6 µm, uniseriate and biseriate.
Excipulum textura globulosa-angularis.
I've compared this with Coprotus leucopocillum using Doveri as the main reference. The spores are too small for this species; the asci not markedly clavate; and this species also has the spores almost entirely biseriate.
I would welcome members' comments.
Regards, Chris
Michel Delpont,
09-12-2015 17:59
Re : Coprotus disculus?
Good evening Chris.
The size of the spores could instead reflect C.disculus; the latter, not always perfectly cylindrical asci and spores can be biseriate party. But, as often, it's worth checking out multiple copies in order to compare the measurements and shapes.
Michel.
The size of the spores could instead reflect C.disculus; the latter, not always perfectly cylindrical asci and spores can be biseriate party. But, as often, it's worth checking out multiple copies in order to compare the measurements and shapes.
Michel.
Chris Johnson,
09-12-2015 18:32
Re : Coprotus disculus?
Thanks Michel.
I have found two apothecia up to now but will continue to look for more and make comparisons.
Chris
I have found two apothecia up to now but will continue to look for more and make comparisons.
Chris
Peter Püwert,
09-12-2015 19:41
Re : Coprotus disculus?
Chris Johnson,
09-12-2015 20:58
Re : Coprotus disculus?
Hi Peter
The link hasn't worked but I think you are referring to the thread started by Malcolm Greaves which I have read.
One piece of information I overlooked was the size of the apothecia. They were 210 µm across. Am I right in understanding that C. leucopocillum is slightly larger (0.3-0.5 mm) than Coprotus disculus?
Regards, Chris
The link hasn't worked but I think you are referring to the thread started by Malcolm Greaves which I have read.
One piece of information I overlooked was the size of the apothecia. They were 210 µm across. Am I right in understanding that C. leucopocillum is slightly larger (0.3-0.5 mm) than Coprotus disculus?
Regards, Chris
Peter Püwert,
09-12-2015 21:26
Re : Coprotus disculus?
Hi Chris,
yes, it was the thread. In my opinion the size of apos I attach not much value. Decisive here are the shape and the size of the asci and the spores arrangement.
Greetings Peter.
yes, it was the thread. In my opinion the size of apos I attach not much value. Decisive here are the shape and the size of the asci and the spores arrangement.
Greetings Peter.
Michel Delpont,
09-12-2015 21:46
Re : Coprotus disculus?
Good evening Chris
Strongly agree with Peter, shape, measures asci and spores, their arrangements are most important, and it can take several apothecia, given some variability to approach the determination.
Michel.
Strongly agree with Peter, shape, measures asci and spores, their arrangements are most important, and it can take several apothecia, given some variability to approach the determination.
Michel.
Chris Johnson,
09-12-2015 23:11
Re : Coprotus disculus?
Good evening Peter and Michel
Ok - thanks for the correct pointers. I'll see if I can isolate some more apothecia. Not easy as the droppings are covered with Coprotus sexdecimsporus so it's not easy to spot this slightly smaller fungus.
Chris
Ok - thanks for the correct pointers. I'll see if I can isolate some more apothecia. Not easy as the droppings are covered with Coprotus sexdecimsporus so it's not easy to spot this slightly smaller fungus.
Chris
Chris Johnson,
10-12-2015 12:22
Re : Coprotus disculus?
Good morning Peter and Michel
I now have another series from a third apothecium.
Asci: 67-81 x 15-21 µm
Spores: 11.5-14.6 x 7.5-9.3 µm
Me = 13.4 x 8.2 Q = 1.6
This looks quite similar to the previous two but I would be please to know what you think.
Regards, Chris
I now have another series from a third apothecium.
Asci: 67-81 x 15-21 µm
Spores: 11.5-14.6 x 7.5-9.3 µm
Me = 13.4 x 8.2 Q = 1.6
This looks quite similar to the previous two but I would be please to know what you think.
Regards, Chris
Michel Delpont,
10-12-2015 13:49
Re : Coprotus disculus?
Hi Chris.
After looking at your latest photos, I would say C.disculus, but always with a little doubt because I always find that the width of spores is too large; I do not know C.dextrinoideus but all your actions could think about it.
Michel.
After looking at your latest photos, I would say C.disculus, but always with a little doubt because I always find that the width of spores is too large; I do not know C.dextrinoideus but all your actions could think about it.
Michel.
Chris Johnson,
10-12-2015 14:39
Re : Coprotus disculus?
Hi Michel
My two reference works are Doveri and Nordic Macromycetes, Vol 1. Both these works are in broad agreement with my spore data. Do you have other references with different spore sizes?
I looked at the data relating to Coprotus dextrinoideus, which tend to be broader in the asci and have a yellow margin to the apothecium. This wasn't noted in my three specimens.
My data also agree with Enrique's (in the database: http://www.ascofrance.fr/search_recolte/2296).
Many thanks, Chris
My two reference works are Doveri and Nordic Macromycetes, Vol 1. Both these works are in broad agreement with my spore data. Do you have other references with different spore sizes?
I looked at the data relating to Coprotus dextrinoideus, which tend to be broader in the asci and have a yellow margin to the apothecium. This wasn't noted in my three specimens.
My data also agree with Enrique's (in the database: http://www.ascofrance.fr/search_recolte/2296).
Many thanks, Chris
Michel Delpont,
10-12-2015 16:22
Re : Coprotus disculus?
OK, my hesitation was because you had not described the apothecium. Otherwise C.disculus is well.
Michel.
Michel.
Chris Johnson,
10-12-2015 16:24
Re : Coprotus disculus?
Thank you Michel, much appreciated.
Chris
Chris