31-03-2026 21:18
Miguel Ángel Ribes
Good evening. oes anyone have the original descrip
31-03-2026 20:57
Stefan BlaserHello everybody, I hope somebody can help me with
26-03-2026 15:31
Åke Widgren
Hello,I found this one in October last year, on r
31-03-2026 16:20
Mlcoch Patrik
Hello, Please about help with determination. On
31-03-2026 08:19
Bernard CLESSE
Bonjour à toutes et tous,Pourriez-vous m'aider à
30-03-2026 12:03
William Slosse
Hello all,On 27/03/26, in Kraaiveld in Wingene (Be
25-03-2026 10:35
Hulda Caroline HolteHello,I collected this species growing on a dead b
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