Accès membres

Mot de passe perdu? S'inscrire

10-12-2018 12:00

Tanja Böhning Tanja Böhning

Bonjour,   Hier nous avons trouvé encore une p

09-12-2018 23:06

Joop van der Lee

Found on cow dung. Fruitbody is covered with tufs

28-02-2014 22:14

Salvador Tello

Hola.Tengo este hongo que crece en tierra y no log

08-12-2018 15:13

Per Marstad Per Marstad

This was growing on Fagus, 2-3 mm. The spores are

08-12-2018 20:07

BERNARD CLESSE BERNARD CLESSE

Trouvé sur tronc pourri de fusain ce que je pense

06-12-2018 07:35

Ethan Crenson

Hello all, These were found by my friend recently

07-12-2018 14:42

Edmond POINTE Edmond POINTE

Bonjour,Ressemble à X.cinerea et scruposa sauf qu

07-12-2018 20:39

Georges Greiff

A second fungus found on bryophytes in chalk grass

07-12-2018 17:24

Enrique Rubio Enrique Rubio

Quelqu'un pourrait-il avoir une copie de ce docume

08-12-2018 10:14

BERNARD CLESSE BERNARD CLESSE

Sur branchettes mortes d'aulne glutineux, encore s

« < 1 2 3 4 5 > »
Discomycète s/ Comarum palustre.
Luc Bailly, 08-02-2012 18:07
Luc BaillyRécolté le 13.08.11, à la face inférieure de feuilles de Comarum palustre. Réserve naturelle domaniale de la Grande Fange de Bihain, Vielsalm, prov. Luxembourg, B., env. 550 m d'altitude.?

Apothécies -> 0.2 mm, en groupes importants, apparemment émergées, chamois clair, sessiles, lisses, à hyménium plan, plus clair, et à marge brun plus vif, mince. Consistance coriace.
Asques 8-sp., sp. bisériées, courts, hyalins, à crochets, IKI BB fort. Peu de spores mûres: sp. guttulées, hyalines, peut-être immatures, 11-12.5 x 3-3.5 µ.
Paraphyses hyalines, renflées au sommet x 3-4 µ, avec une grosse guttule bien réfringente au sommet.
Excip. ectal text. ang. émoussé, brun clair, plus foncé à la marge et près du point d'attache.

Aucune idée...

Amitiés - LUC.
  • message #17319
  • message #17319
  • message #17319
  • message #17319
  • message #17319
  • message #17319
  • message #17319
  • message #17319
  • message #17319
  • message #17319
Hans-Otto Baral, 08-02-2012 18:16
Hans-Otto Baral
Re : Discomycète s/ Comarum palustre.
Hi Luc

intersting collection! I have only Aivenia tantula in my database for Comarum which appears similar, but spores are only 6-7 x 1.3-1.5.
Mollisia minutissima and Pyrenopeziza comari also exist.

There is a refractive VB in the paraphysis apex. Together with the remaining characters this reminds me of a Calloriella (= Crustomollisia), though a brown cloddy exudate is not visible on the excipulum.

Zotto
Luc Bailly, 08-02-2012 18:36
Luc Bailly
Re : Discomycète s/ Comarum palustre.
Hi Zotto,
This is a nature reserve I often visit, so it's likely I can find more samples.

I do see brown exudates on the photo of the ectal excipulum. Quite clear brown though.

With the paraphyses, and the excipulum text. ang., I excluded Mollisia and Pyrenopeziza.

Calloriella is a genus I haven't seen yet, so, difficult to say. All I have in my refs is a Stip's photo of C. umbrinella on Solidago, and yes, there are similarities (paraphyses, excipulum) with that genus. Is there a study available on Calloriella?

Many thanks, cheers - LUC.
Chris Yeates, 08-02-2012 20:22
Chris Yeates
Re : Discomycète s/ Comarum palustre.
Bonsoir Luc

there are similarities between your disco and the one in the post I made on another fungus, for which Zotto pointed me towards Calloriella / Crustomollisia (mine was much more encrusted though) http://www.ascofrance.com/search_forum/16442

I shall follow this with interest

Amitiés

Chris
Luc Bailly, 08-02-2012 20:31
Luc Bailly
Re : Discomycète s/ Comarum palustre.
Hi Chris,

Thanks for this ref. Yes, my sample is quite close. I didn't notice the paraphyses' reaction to IKI though. My sample is less incrustated, and paler. But this aside, it seems to me Calloriella is a possibility.

Cheers - LUC.
Hans-Otto Baral, 08-02-2012 20:37
Hans-Otto Baral
Re : Discomycète s/ Comarum palustre.
I did not speak of an IKI-reaction of the paraphyses, only of very ?striking refractive vacuoles in the apical cell which disappear in the dead state and which you will therefore hardly find mentioned in the literature. But they are very typical for Calloriella.

Zotto