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Mot de passe perdu?

13-02-2026 03:30

Unknown near Pseudohalonectria

Tomaz Vucko

Tomaz Vucko

Hello! I found these immersed perithecia on a stic

12-02-2026 21:34

Attaque des feuilles de Quercus suber

patrice Callard

Bonjour, la face inférieure des feuilles ce certa

11-02-2026 22:15

Rutstroemia maritima?

William Slosse

William Slosse

Today, February 11, 2026, we found the following R

12-02-2026 14:55

Brown-spored and multiseptate loculo on Euonymus europaeus - Denmark

Thomas Læssøe

https://svampe.databasen.org/observations/10581810

11-02-2026 19:28

Pezizaceae spec. from Germany

Lothar Krieglsteiner

Lothar Krieglsteiner

on small deciduous twig on the ground in forest wi

25-04-2025 17:24

Cosmospora/Dialonectria spec.

Stefan Blaser

Hi everybody, This collection was collected by J�

09-02-2026 22:01

ruiz Jose

Hola, me paso esta colección en madera de pino, t

10-02-2026 17:42

Hélotiale blanche sur Sambucus racemosa

Bernard CLESSE

Bernard CLESSE

Bonjour à toutes et tous,Pourriez-vous me donner

10-02-2026 18:54

Unknown pink heliotale on sphagnum

Erik Van Dijk

Does anyone has an idea what fungus species this m

09-02-2026 20:10

(2 different or one ?) Hypoxylon from the Algarve – on Acacia and Arbutus

Lothar Krieglsteiner

Lothar Krieglsteiner

The first 6 tables show surely one species with 2

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