Accès membres

Mot de passe perdu? S'inscrire

12-07-2020 17:42

Juuso Äikäs

I found a lot of these growing gregariously on dea

12-07-2020 21:17

BERNARD CLESSE BERNARD CLESSE

Bonsoir à toutes et à tous,Que pensez-vous de ce

12-07-2020 19:23

Andgelo Mombert Andgelo Mombert

Bonsoir, Sur bois mort décortiqué, immergé dan

12-07-2020 16:30

Gilbert MOYNE

Bonjour, Une récolte qui me pose quelques probl

09-07-2020 00:39

Valencia Lopez Francisco Javier

Hola a todosEncontré este curioso ascomycete a me

07-07-2020 13:34

Sergey Markov

I found this peziza sp. on loamy soil - on the gro

10-07-2020 17:50

Garcia Susana

Hola, Me gustaría vuestra ayuda para identificar

08-07-2020 00:01

Shane John

I would ask the indulgence of the group to perhaps

08-07-2020 16:47

Chris Yeates Chris Yeates

Bonjour tous While searching for the downy mildew

10-07-2020 14:26

Thomas Læssøe

Anybody in the know of eg Pseudoneottispora?See: 

« < 1 2 3 4 5 > »
champignon sur bryophyte
Milanka Tanaskovic, 02-02-2014 23:37
Bonjour à tous,
  
Voici un champignon récolté le 4 janvier sur Mnium affine en forêt de Fontainebleau
(77) ; un seul exemplaire de 5mm.
Est-ce que quelqu'un parmi vous a une idée?
Merci d'avance.

Mila
  • message #27307
  • message #27307
  • message #27307
  • message #27307
  • message #27307
  • message #27307
Hans-Otto Baral, 03-02-2014 09:40
Hans-Otto Baral
Re : champignon sur bryophyte
Hi Mila

this looks like a Peziza to me although I am not sure that a helotialean species can be excluded. Curved paraphyses look characteristic, but where do they occur? With at least double resolution of your pics I could perhaps be more sure.

Zotto
Michel Hairaud, 03-02-2014 09:59
Michel Hairaud
Re : champignon sur bryophyte
Bonjour Mila, 
Avais tu la certitude que le bryophyte était le véritable support ?
Les spores m'évoquent plutôt un Ciboria mais en regardant la réaction à l'iode, je ne vois pas celle d'une Sclerotiniaceae et je me demande même s'il n'y a pas d'opercules à certains asques.

Amitiés
Michel
Milanka Tanaskovic, 03-02-2014 13:59
Re : champignon sur bryophyte

Merci Michel et Zotto
Les photos en plus haute résolution envoyé en privée.

Mila

Hans-Otto Baral, 03-02-2014 16:45
Hans-Otto Baral
Re : champignon sur bryophyte
Cher Mila

I attach here some of your pics in higher resolution. I see an operculum in some of them. The amyloid ring is indeed somewhat similar to Sclerotiniaceae, but the operculum and the ellipsoid spores with a striking nucleus in the centre point to a Peziza in my opinion.

A section of the whole apothecium would be helpful to see the  texture, cell size, and the layers.

Zotto
  • message #27333
  • message #27333
  • message #27333
  • message #27333
  • message #27333
  • message #27333
Uwe Lindemann, 03-02-2014 20:15
Uwe Lindemann
Re : champignon sur bryophyte
Hi to all,
it could be a Thecotheus species. Two years ago I found a very similiar collection which grows also on mosses at a place which was urinated by sheeps and hares. First I thought also of Bryoscyphus or something similar, but the asci were also operculate.
Lastly Dirk and I determinated it as Thecotheus cf. uncinatus. The mature spores were finely warted, the immature spores were smooth.
Best, Uwe
  • message #27339
  • message #27339
Michel Hairaud, 03-02-2014 20:56
Michel Hairaud
Re : champignon sur bryophyte
Hi Uwe, 

Did you also have such paraphyses in your collection as in Mila's  fungus ? As Zotto said, they look here characteristic for Peziza . 

Amitiés
Michel
Uwe Lindemann, 03-02-2014 21:39
Uwe Lindemann
Re : champignon sur bryophyte
Yes, we had similar paraphyses.
And we found near to the apothecium on moss also one apothecium on hare dung.
Due the apical blueing of the ascus we thought firstly of Peziza but we found no Peziza species which fits with our observations. After the study of the literature we come to the conclusion that the genus Thecotheus fits also well. We are not sure concerning our determination but we have no other idea than Thecotheus.
Best, Uwe
  • message #27344
  • message #27344
Hans-Otto Baral, 03-02-2014 22:50
Hans-Otto Baral
Re : champignon sur bryophyte
This is great, Uwe! The name surely refers to the hooked paraphyses. Do you have this thesis by Aas where it is described? 

Michel, I mean't that they look characteristic in generall, not in regard to Peziza where I do not recall a species with this feature.

But I was unaware of such merely apical and strong iodine reaction in Thecotheus. Those that I know react along the whole ascus.

Zotto
Uwe Lindemann, 03-02-2014 22:57
Uwe Lindemann
Re : champignon sur bryophyte
Yes, I have the thesis of Aas.
Best, Uwe
Milanka Tanaskovic, 04-02-2014 00:08
Re : champignon sur bryophyte
Merci Zotto,

Ma récolte date du 4 janvier dernier. Si tu le souhaites, je peux t'envoyer le champignon sec.

Mila
Hans-Otto Baral, 04-02-2014 00:11
Hans-Otto Baral
Re : champignon sur bryophyte
Merci Mila, but no, not to me. (not my group)

Zotto
Hans-Otto Baral, 04-02-2014 11:14
Hans-Otto Baral
Re : champignon sur bryophyte
I had now an opportunity to look in the monograph. The ascus iodine reaction for T. uncinata is described as "when fresh the I+ blue colour of the asci occasionally soon disappears, but retursn after some days". Whatever this means, it sounds to me as a weak reaction not restricted to the apex, as in other species of the genus. This is also a key character for the whole family Ascobolaceae.

So I doubt a bit that your and Uwe's finds belong in that genus.

Zotto
DirkW, 04-02-2014 12:06
DirkW
Re : champignon sur bryophyte
salut zotto,

i agree with you. the kind of iodine-reaction is typical peziza and not really thecotheus comparable. i recently think its more likely a (perhaps undescribed) probably coprophile peziza. @mila: can you give informations about spore-measure and ornamentation, so we could compare better with our collection? the ornamentation of our find was fine verrucose, more dense at the poles! 
one reason that we considered thecotheus was that our fruitbodies were very small (2-4mm!) and nearly colourless.

best

dirk
Milanka Tanaskovic, 04-02-2014 23:17
Re : champignon sur bryophyte
Bonjour Dirk et Zotto,

Ma récolte date du 4 janvier et l'observation au microscope est fait avec du matériel frais. Les spores sont  lisses, de diamètre de 15-19x6-10µm. J'ai posté ce matin l'exsiccata de mon seul exemplaire à Uwe.

Mila

Uwe Lindemann, 12-02-2014 00:52
Uwe Lindemann
Re : champignon sur bryophyte
Hi to all,
I had now the opportunity to investigate Mila's finding. I think it's the same fungus which I found together with Dirk. The spores of Mila's finding are also like ours at maturity finely warted only immature smooth. In Lugol the asci are strongly blueing at the apex (as shown on the pictures) but faintly also the whole ascus.
Best, Uwe
Hans-Otto Baral, 12-02-2014 09:40
Hans-Otto Baral
Re : champignon sur bryophyte
Hoi Uwe

on your  photo of your find there are some ochre-coloured spores. Is this due to iodine or is it a natural colour?
 
Zotto
Uwe Lindemann, 12-02-2014 09:58
Uwe Lindemann
Re : champignon sur bryophyte
It's due to iodine.
Best, Uwe
Mirek Gryc, 22-11-2019 19:58
Re : champignon sur bryophyte
Hello
Sorry to use this thread but I'm pretty sure I found the same species of mushroom.
I found it a week earlier but the fruiting bodies were completely immature.
They grew on plant debris and moss soaked with feces.
All features match the presented in this thread. However, no one mentions the outer surface of the fruiting body. In my sporocarps on the outer surface there were thinner hyphae covering the entire sporocarps. Have you seen it too?

The diameter of the largest sporocarps was 6-7 mm.


Mature spores slightly rough!


Mirek

  • message #60135
  • message #60135
  • message #60135
  • message #60135
  • message #60135
  • message #60135
  • message #60135
  • message #60135
  • message #60135
  • message #60135
  • message #60135
  • message #60135
  • message #60135