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08-12-2025 17:37

Lothar Krieglsteiner Lothar Krieglsteiner

20.6.25, on branch of Abies infected and thickened

16-02-2026 21:25

Andreas Millinger Andreas Millinger

Good evening,failed to find an idea for this fungu

16-02-2026 18:34

Thierry Blondelle Thierry Blondelle

Bonjour,La micro de cet anamorphe de Hercospora su

16-02-2026 17:14

Joanne Taylor

Last week we published the following paper where w

16-02-2026 16:53

Isabelle Charissou

Bonjour, quelqu'un pourrait-il me transmettre un

16-02-2026 00:05

Maren Kamke Maren Kamke

Good evening, I am looking for the following pape

16-02-2026 11:53

Joeri Belis

between leaf litter on twig in young salix growth.

14-02-2026 22:45

Tomaz Vucko Tomaz Vucko

Hy!I would ask for some help determing this specie

13-02-2026 03:30

Tomaz Vucko Tomaz Vucko

Hello! I found these immersed perithecia on a stic

15-02-2026 20:28

éric ROMERO éric ROMERO

Bonjour tous, Un Mollisia qui me pose problème..

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possibly related to Melanomma - on Abies
Lothar Krieglsteiner, 08-12-2025 17:37
Lothar Krieglsteiner20.6.25, on branch of Abies infected and thickened by Melampsorella caryophyllacearum (rust fungus-cancer), leg. C. Weinkötz in the scope of a fungal seminar, Germany, Baden-Württemberg, Schwäbischer Wald

I think the fungus shouid be bitunicate, and the spores reminde me of Melanomma or something related. I do not find a fully fitting fungus in the book of Björn Wergen. The brown, 3-septate spores measure about 21-24/(6,5)7-7,5(8) µm. There is no reaction with Melzers reagent, and there are croziers at the base of the asci.

Who can help? Best regards, Lothar





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Andgelo Mombert, 16-01-2026 11:51
Andgelo Mombert
Re : possibly related to Melanomma - on Abies
Hello,
Perhaps Cucurbidothis pithyophila var. cembrae ?
Andgelo
Lothar Krieglsteiner, 16-01-2026 12:14
Lothar Krieglsteiner
very likely Cucurbidothis pithyophila var. cembrae - on Abies
Hello Angelo,

thank you very much for your proposal. This seems to be a very good hint - as far as I can find quick information in the internet. I also have the book of Migula who mentions Rehms variety (without longitudinal septa), and the data given sound good.

Best regards, Lothar

P.S. If somebody has acces to the following publication, this could be interesting:

Boyce, J. S., 1952: Cucurbitaria pithyophila, an entomogenous fungus. Plant Dis. Reptr. 36 (2), 62—63.
Nihad Omerovic, 16-01-2026 16:52
Lothar Krieglsteiner, 17-01-2026 09:26
Lothar Krieglsteiner
Re : possibly related to Melanomma - on Abies
thank you!
Joanne Taylor, 16-02-2026 17:16
Re : possibly related to Melanomma - on Abies
Please see this post Lothar, regarding this fungus:

http://www.ascofrance.com/search_forum/84040

Thanks, Jo Taylor
Lothar Krieglsteiner, 16-02-2026 17:41
Lothar Krieglsteiner
Re : possibly related to Melanomma - on Abies
Hello Jo,
thank you very much for your posts and the link to your interesting paper.
So my fungus must be C. parmeliarum, not a very appropriate name for a fungus growing with or on evertebrates not lichens (but so ist taxonomy).
I will send you an e-mail with the exact collection data. I will have a look at the specimen and try to find the adelgids, but this can take some time.
Best regards, Lothar
Joanne Taylor, 16-02-2026 23:30
Re : possibly related to Melanomma - on Abies
It is a rather unfortunate name .... However, the adelgid Adelges piceae occurs in Abies species and the adelgid Adelges abietis occurs on Picea .... so mycological taxonomists do not have a monopoly on confusing names.....!