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19-09-2025 18:29

En KK de vacuno9
Castillo Joseba Castillo Joseba

De ayer  recolectadas en Kk de vacunoHabia ejempl

18-09-2025 08:35

Chaetomium
Edmond POINTE Edmond POINTE

Bonjour amis mycologues,Trouvé sur moquette de ch

17-09-2025 19:43

Lachnellula suecica ?
Philippe PELLICIER

Sur branche morte de Mélèze. Les ascospores sphÃ

18-09-2025 19:40

Pulvinula sp
Sylvie Le Goff

BonjourPensez vous que le genre Pulvinula puisse c

18-09-2025 16:14

Literature request
Bernard Declercq Bernard Declercq

Hello,I am looking for a copy of following paper:H

17-09-2025 16:14

Sepultaria ?
Philippe PELLICIER

Apothécies enterrées, fermées au début puis s'

17-09-2025 10:50

Ascomycete on Polystichum proliferum
Heather Merrylees

Hi there!I am hoping for any advice on the identif

11-09-2025 16:57

Marthamycetales revision published
Jason Karakehian Jason Karakehian

Our revision of Marthamycetales (Leotiomycetes) is

16-09-2025 12:53

Encoeliopsis rhododendri
Philippe PELLICIER

Pézizes de 1-4 mm, brun grisâtres, sur les capsu

03-09-2025 12:44

Ascolichen on Blechnum?
Enrique Rubio Enrique Rubio

Hi to somebody.I would like to know your opinion o

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Karstenia clematidis (?) sur Clematis vitalba
Bernard CLESSE, 30-01-2018 18:04
Bernard CLESSEBonsoir à toutes et tous,

Trouvé récemment ce que je pense être des Karstenia clematidis sur grosse liane morte de clématite des haies (Clematis vitalba).

Qu'en pensez-vous ?

Bernard
  • message #52072
  • message #52072
  • message #52072
Hans-Otto Baral, 31-01-2018 08:05
Hans-Otto Baral
Re : Karstenia clematidis (?) sur Clematis vitalba
It looks like K. idaei, but I do not know K. clematidis - did you compare the two species?
Bernard CLESSE, 31-01-2018 08:24
Bernard CLESSE
Re : Karstenia clematidis (?) sur Clematis vitalba
Hi Zotto,

Thank you for your message ! In fact, I am looking for a key of the genus Karstenia including Karstenia clematidis because I simply saw on the web the existence of this species on Clematis.


Would you have this key?


Thank you very much in advance!

Bernard 

Hans-Otto Baral, 31-01-2018 09:44
Hans-Otto Baral
Re : Karstenia clematidis (?) sur Clematis vitalba
haha. No, I only have my key and it contains only what I know. Other keys I do not remember. It is not so simple to go after the substrate because K. idaei occurs on everything.

I read in Sherwood 1980 that the spores of clematidis are only 35-45 x 3-4, with 3-4 µm long cells.
Bernard CLESSE, 31-01-2018 11:28
Bernard CLESSE
Re : Karstenia clematidis (?) sur Clematis vitalba
OK Zotto, thank you for the information about K. clematidis !

I do not quite see the difference between K. macer and K. idaei. With the given information and pictures can we eliminate K. macer?

Bernard
Hans-Otto Baral, 31-01-2018 12:07
Hans-Otto Baral
Re : Karstenia clematidis (?) sur Clematis vitalba
I know macer with larger LBs and darker apothecia, but I know the species is variable, and maybe not all in my folder belongs to it. K. macer is also redescribed by Sherwood in the same paper. Spore 7-septate, this appears to distinguish it! Individual cells double length tha n width.
Bernard CLESSE, 31-01-2018 12:10
Bernard CLESSE
Re : Karstenia clematidis (?) sur Clematis vitalba
OK Zotto, thank you, it's perfect !

Bernard
Bernard CLESSE, 31-01-2018 15:57
Bernard CLESSE
Re : Karstenia clematidis (?) sur Clematis vitalba
Here are new pictures of spores, with 9-15 septa. 

Bernard
  • message #52095
Hans-Otto Baral, 31-01-2018 17:15
Hans-Otto Baral
Re : Karstenia clematidis (?) sur Clematis vitalba
yes, this is clear.
Bernard CLESSE, 31-01-2018 17:21
Bernard CLESSE
Re : Karstenia clematidis (?) sur Clematis vitalba
OK Zotto, thank you for your opinion !

Bernard