Accès membres

Mot de passe perdu?

30-01-2018 18:04

Karstenia clematidis (?) sur Clematis vitalba

Bernard CLESSE

Bernard CLESSE

Bonsoir à toutes et tous,Trouvé récemment ce qu

30-01-2018 19:44

Helminthosphaeria

hannie wijers

Hello. I would like to ask a question. On a piece

30-01-2018 14:52

Discomycete on Castanea

Gernot Friebes

Hi, this one was also found by A. Gallé on wood

31-01-2018 03:49

Hypocrealean anamorph?

Chris Yeates

Chris Yeates

This fungus has appeared on one of a number of dea

30-01-2018 06:10

Hyaloscyphaceae ?

Ethan Crenson

Hello all,In New York City, on well rotted hardwoo

30-01-2018 15:27

Discomycete on coniferous wood

Gernot Friebes

Hi,yet another unknown disco. :-/ I found it on de

27-01-2018 21:41

Berkleasmium sp. ? on Araucaria auracana

Thorben Hülsewig

Hi there,a few days ago i found this fungus.Maybe

30-01-2018 17:29

Coniochaeta ligniaria ?

Ethan Crenson

Hello,In New York City on decorticated hardwood.

22-01-2011 21:06

Gernot Friebes

Hi, another species which I cannot determine wi

30-01-2018 10:32

Peziza repanda ?

Vasileios Kaounas

Vasileios Kaounas

Found in forest with Quercus ilex.Asci (239.1) 251

Karstenia clematidis (?) sur Clematis vitalba

Bernard CLESSE, 30-01-2018 18:04

Bernard CLESSE

Bonsoir 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

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

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