Accès membres

Mot de passe perdu? S'inscrire

16-05-2022 10:37

Castillo Joseba Castillo Joseba

Me mandan el materila de Galicia (España) recolec

15-05-2022 21:53

PASCAL DUBOC

Bonsoirun  morceau de feuillu pourri flottant.. c

06-05-2022 14:38

Laurent Bonneau Laurent Bonneau

Bonjour, j'ai trouvé ces Scutellinia dans le sud

09-05-2022 19:45

Elisabeth Stöckli

Bonsoir,Trouvé au sol sur tige morte de Rubus (94

14-05-2022 21:03

Enrique Rubio Enrique Rubio

These sessile or subsessile apothecia, more or les

08-05-2022 19:29

PASCAL DUBOC

Bonjourcolonie de disques (< 2 mm) gris à marg

12-05-2022 12:48

Viktorie Halasu Viktorie Halasu

Hello,last year (22.IX.) I've found this small red

12-05-2022 17:27

Edvin Johannesen Edvin Johannesen

Apothecia 0.2-0.5 mm in diam., slightly downy exci

17-01-2012 15:11

Jean-Claude Malaval Jean-Claude Malaval

Bonjour à tous,Fréquent sur différents supports

12-05-2022 10:31

Viktorie Halasu Viktorie Halasu

Hello, can I call this Coprotus disculus, or is i

« < 1 2 3 4 5 > »
Hamatocanthoscypha-like sur Clematis vitalba
Bernard CLESSE, 23-01-2022 23:53
Bernard CLESSEBonsoir à toutes et tous,

J'ai trouvé récemment cet asco sur tige pourrie de clématite des haies. Les poils me font penser à un Hamatocantoscypha mais y a-t-il une espèce qui vient sur cette plante ou s'agit-il d'un autre genre ?

Merci d'avance pour vos réponses !

Bernard
  • message #71551
  • message #71551
  • message #71551
  • message #71551
  • message #71551
  • message #71551
  • message #71551
Kosonen Timo, 24-01-2022 07:41
Kosonen Timo
Re : Hamatocanthoscypha-like sur Clematis vitalba
Salut,

Howabout Unguiculella? Hamatos have curved hairs, but they do not have solidifications - "glassines". Try MLZ and Lugol, they might help here. I dont dare to suggest a species. Zotto has several folders under Unguicuella, start there, check Iridinea also.

Please make good documents & keep the sample.

bw
Timo
Hans-Otto Baral, 24-01-2022 08:15
Hans-Otto Baral
Re : Hamatocanthoscypha-like sur Clematis vitalba
Hi

I see one paraphysis, are they all like this? Important to know if there are hooked paraphyses like the hairs in the hymenium.

Unguiculariopsis would have the microscopic appearance too, but has a brown excipulum. It is strange that it is in Cordieritidaceae. Unguiculella also has usually flexuous hairs, not so regular as here. Hamatocanthoscypha I would also exclude.

Verify two things: Asci are inamyloid? I doubt the simple-septate ascus base, immature asci with adhering basal cell should be checked.

Zotto
Bernard CLESSE, 24-01-2022 08:20
Bernard CLESSE
Re : Hamatocanthoscypha-like sur Clematis vitalba
Hello to both of you and thank you very much for your leads. I'm going to check if the asci are amyloid and if the asci have a hook (actually, I was a little hesitant).

Best regards,

Bernard
Bernard CLESSE, 24-01-2022 12:49
Bernard CLESSE
Re : Hamatocanthoscypha-like sur Clematis vitalba
Hello Timo and Zotto,

Here are new microscopy photos. The asci are inamyloid and they do indeed have a crozier at the base.


The excipulum is brownish yellow in color.


What do you think ?


Bernard

  • message #71561
  • message #71561
  • message #71561
  • message #71561
  • message #71561
  • message #71561
  • message #71561
  • message #71561
Kosonen Timo, 24-01-2022 13:04
Kosonen Timo
Re : Hamatocanthoscypha-like sur Clematis vitalba
what about hairs? any LUG/MLZ reaction? ...I assume not :-)

T
Bernard CLESSE, 24-01-2022 13:48
Bernard CLESSE
Re : Hamatocanthoscypha-like sur Clematis vitalba
Hello Timo ,

I just looked at the hairs in the lugol : no particular reaction


Bernard

Kosonen Timo, 24-01-2022 14:21
Kosonen Timo
Re : Hamatocanthoscypha-like sur Clematis vitalba
ok, that excludes Hyalacrotes ... I dont disagree with Unguiculariopsis. 
T
Hans-Otto Baral, 24-01-2022 16:00
Hans-Otto Baral
Re : Hamatocanthoscypha-like sur Clematis vitalba
So your photos 6 + 8 are in water, not Lugol. With such excipular colour I would actually think Unguiculariopsis.
Bernard CLESSE, 24-01-2022 16:13
Bernard CLESSE
Re : Hamatocanthoscypha-like sur Clematis vitalba
OK, big thanks to both of you !

Bernard