Accès membres

Mot de passe perdu? S'inscrire

26-05-2013 15:04

Wolfgang von Brackel Wolfgang von Brackel

Hi everyone,I got a fungus on bark from southern I

25-05-2013 12:04

Gilles Corriol Gilles Corriol

Bonjour,Sur crotte de petit mammifère. GC13051716

25-05-2013 12:20

Gilles Corriol Gilles Corriol

Un autre coprophile, sur bouse de vache. GC1305090

24-05-2013 23:15

Peter Welt Peter Welt

R. F. Cain,J. H. Mirza, Apodospora, a new genus of

23-05-2013 23:41

Cvenkel Miran

It apperas to elevated from side view, comparing t

23-05-2013 12:45

Javier Retamino Hernandez Javier Retamino Hernandez

Hola a todosNo acabo de cuadrar esta Scutellinia q

24-05-2013 19:13

Enrique Rubio Enrique Rubio

Hi to allI have found this fungus that makes erump

24-05-2013 12:23

Björn Wergen Björn Wergen

Hi friends,I have found another Nectriella, which

24-05-2013 18:09

Björn Wergen Björn Wergen

Hi there,here is another pyrenomycete growing on R

24-05-2013 02:03

Francisco Calaça Francisco Calaça

I found on cow feces. It will be a Peziza??Thanks

« < 1241 1242 1243 1244 1245 > »
Coprotus? Need help
Björn Wergen, 15-11-2010 13:11
Björn WergenSalut,

in the last days I have collected some dung from various animals (cow, horse...) to culture some coprophilous ascomycota. I have 10 different species now, but with the 11. one I have some problems with determination. Perhaps you can help me ;)

Fruitbody 0,08-0,2 mm, discoidal with protuding asci, first pale ochraceous-yellow, later darker, ochraceous to pale brown.
Spores 8,4-10,1 x 4,2-4,5 µm, ellipsoid with rounded ends, smooth, hyaline, with a DeBary-Bubble (only seen under x1000 with immersion and very good eyes :D ), glued to a cluster, also after leaving ascus, Cluster 26-30 x 8,6 - 8,9 µm.
Asci claviforme, very short stalked, hyalin, with 8 spores and an irregular biseriat arrangement (glued together).
Paraphyses 1,4-1,6 µm, apical strongly swollen up to 5-6 µm, with paly yellowish pigment, smooth.

Found on cow-dung together with Cheilymenia granulata.

It seems as if there is a Coprotus with hyalin, saccoboloid spores...can that be?? Anyway, hope you can give me some hints ;)

Thanks a lot and cheers,
Kazuya
  • message #13351
Björn Wergen, 15-11-2010 13:12
Björn Wergen
Re:Coprotus? Need help
mikro1
  • message #13352
Björn Wergen, 15-11-2010 13:12
Björn Wergen
Re:Coprotus? Need help
mikro2
  • message #13353
Hans-Otto Baral, 15-11-2010 13:36
Hans-Otto Baral
Re:Coprotus? Need help
Dear Kazuya

I imagine that your fungus s Thelebolus microsporus. Typical is that the spores glue together after discharge. Also there is no operculum, and the species is more close to the Helotiales (Thelebolaceae). There is a gluing substance which stains bright red in Congo (CR).

I had a fresh collection on sheep dung, with ssci *60-80 x 11-12.5 µm, with croziers, IKI-, +H2O mostly with apical thickening with apical chamber, opening by a split, no operculum. Sp. 8-9.5 x 4.5-4.8 µm.

There are no DBS. What you saw is the nucleus. Did you mount it fresh in water? Then maybe you see the greenish-yellow VBs in the paraphyses.

Good luck!
Zotto
  • message #13354
Björn Wergen, 15-11-2010 14:08
Björn Wergen
Re:Coprotus? Need help
Hi Zotto,

many thanks for help, I've also thought about T. microsporus, but I had never seen this one with that glued spores ;)

I will try it with CR next time. I have also seen paraphyses with this yellow pigment, fresh in water of course.

I will take a second look on this species. It's very very interesting for me ;)

Cheers,
Kazuya
Nicolas VAN VOOREN, 16-11-2010 08:44
Nicolas VAN VOOREN
Re:Coprotus? Need help
Yes, this a very interesting species, also found this year on sheep dung.
  • message #13369