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04-04-2011 02:11

Björn Wergen Björn Wergen

Hi again, the findings of the last days will be

03-04-2011 23:00

Raúl Tena Lahoz Raúl Tena Lahoz

Hola a todos I am trying to distinguish between

31-03-2011 21:19

Daniel Ghyselinck

Bonsoir à tous, hi everybody, J'ai récolté c

30-03-2011 22:26

Martin Bemmann Martin Bemmann

Dear all, today I found on dead overwintered te

30-03-2011 20:12

Marja Pennanen

Hello, I been traveling by bus to get some educ

30-03-2011 14:27

Alain GARDIENNET Alain GARDIENNET

Bonjour à tous, Dans un vieux message, Christia

29-03-2011 22:18

Mejia Luis

Dear friends, Attached is an article on Plagios

29-03-2011 21:31

Amy Rossman

Dear Ascofrance Folks, Some years ago Lisa Cast

29-03-2011 15:18

Björn Wergen Björn Wergen

Hello again, it seems as if there is an infinit

29-03-2011 12:49

Yannick Mourgues Yannick Mourgues

Bonjour. Tiens, c'est marrant : je l'ai trouvé e

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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