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Hulda Caroline Holte

Hello, I found and collected this species growing

07-03-2026 13:06

éric ROMERO éric ROMERO

Bonjour tous, Sur cône d'épicea fortement imbu,

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Josep Torres Josep Torres

Hello.Small, yellowish ascomata, with very short a

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Bonjour à tousLe 24/02/2026 à Montmacq, devant m

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Bonjour à tous,Sur 3 récoltes supposées de H. l

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Josep Torres Josep Torres

Hello.Some very tiny conidiomes collected in the D

06-03-2026 17:51

William Slosse William Slosse

Good evening all,On March 4, 2026, I found the fol

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François Bartholomeeusen

Dear forum members, On the 2nd of February 2026,

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Alain GARDIENNET Alain GARDIENNET

Hi forum, I'm now looking for another reference c

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William Slosse William Slosse

Good evening everyone,On March 4, 2026, I found th

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Coprotus...ochraceus?
Björn Wergen, 04-04-2011 02:11
Björn WergenHi again,

the findings of the last days will be microscoped again, but first I have some problems with Coprotus. 2005 I had found some of Coprotus but was not really able to determine them. Now, with more literature and more experience, I hoped to be ready for Coprotus, but it seems as if I am wrong with it.

Fruitbody 0,5-1 mm, disc-shaped, whitish to yellow-whitish, with protuding asci. Spores 17-21x10-12,5 µm, ellipsoid, hyaline, really smooth, with deBarry-Bubble (I hope it is right), thickwalled. Asci 90-100x20-30 µm, cylindrical, with 8 spores in different arrangement, Spores in Asci with gel-sheath (similar to immature Ascobolus immersus spores...). Paraphyses cylindrical, 90-100x2-3 µm, apices up to 7 µm, hyalin, septate, rarely branched.

On dung of wild pig.

Perhaps someone has an idea. My problem is the spore size, C. ochraceus and C. leucopocillum with both 8spored asci have smaller spores...

regards,
Kazuya
  • message #15007
Björn Wergen, 04-04-2011 02:11
Björn Wergen
Re:Coprotus...ochraceus?
micro
  • message #15008
Michel Delpont, 04-04-2011 11:56
Michel Delpont
Re:Coprotus...ochraceus?
hello.

Coprotus species of the genus are often difficult to separate. The size of the spores seem a little large for leucopocillum. Ochraceus is normally more pigmented than leucopocillum, bigger in size, and has also more pigmented paraphyses. The exipulum is also normally low cyanophilous.

Regards.
Björn Wergen, 04-04-2011 21:09
Björn Wergen
Re:Coprotus...ochraceus?
Hi Michel,

thank you for the answer. I checked another substrate, also wild pig, and found more orange-yellow to pale ochraceous-yellow apothecia in the same size as the finding before, but different microscopical features like the smaller spores (17-19x10-11µm) and not inflated paraphyses with pale yellow pigment. I will show the photos right here ;)

I think this should be C. ochraceus.

regards,
Kazuya
--------------

edit: Asci open by an operculum!
  • message #15012
Björn Wergen, 04-04-2011 21:09
Björn Wergen
Re:Coprotus...ochraceus?
micro
  • message #15013
Michel Delpont, 09-04-2011 14:28
Michel Delpont
Re:Coprotus...ochraceus?
OK, this seems to fit; excuse my delay but I had a computer problem.
Regards.
Björn Wergen, 10-04-2011 17:08
Björn Wergen
Re:Coprotus...ochraceus?
Hi Michel,

many thanks for your opinion, it does not matter if it was a bit late ;)

regards,
Kazuya