04-11-2025 09:07
Josep Torres
Hello.A suspected Hymenoscyphus sprouting on a thi
03-11-2025 21:34
Edvin Johannesen
These tiny (0.4-0.5 mm diam.), whitish, short-stip
28-10-2025 15:37
Carl FarmerI'd be grateful for any suggestions for this strik
03-11-2025 16:30
Hans-Otto Baral
Hello I want to ask you if you have found this ye
28-10-2025 19:33
Nicolas Suberbielle
Bonjour à tous,Je voudrais votre avis sur cette r
31-10-2025 09:19
Lothar Krieglsteiner
Can somebody provide me with a file of:Rogerson CT
09-08-2025 13:13
Maria Plekkenpol
Hello,Yesterday I found these on burnt soil. Apoth
Karstenia clematidis (?) sur Clematis vitalba
Bernard CLESSE,
30-01-2018 18:04
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
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
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
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.
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
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
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
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
Re : Karstenia clematidis (?) sur Clematis vitalba
OK Zotto, thank you, it's perfect !
Bernard
Bernard
Bernard CLESSE,
31-01-2018 15:57
Re : Karstenia clematidis (?) sur Clematis vitalba
Here are new pictures of spores, with 9-15 septa.
Bernard
Bernard
Hans-Otto Baral,
31-01-2018 17:15
Re : Karstenia clematidis (?) sur Clematis vitalba
yes, this is clear.
Bernard CLESSE,
31-01-2018 17:21
Re : Karstenia clematidis (?) sur Clematis vitalba
OK Zotto, thank you for your opinion !
Bernard
Bernard