08-12-2025 17:37
Lothar Krieglsteiner
20.6.25, on branch of Abies infected and thickened
16-01-2026 00:45
Ethan CrensonHi all, On decorticated hardwood from a New York
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Danny Newman
Chlorociboria glauca on indet. decorticate logThe
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Lothar Krieglsteiner
this one is especially interesting for me because
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Danny Newman
Tricladium varicosporioides on indet. decorticate
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Danny Newman
Tatraea sp. on indet. hardwood The Swag, Great Sm
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Danny Newman
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possibly related to Melanomma - on Abies
Lothar Krieglsteiner,
08-12-2025 17:37
20.6.25, 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 WaldI 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
Andgelo Mombert,
16-01-2026 11:51
Re : possibly related to Melanomma - on Abies
Hello,
Perhaps Cucurbidothis pithyophila var. cembrae ?
Andgelo
Perhaps Cucurbidothis pithyophila var. cembrae ?
Andgelo
Lothar Krieglsteiner,
16-01-2026 12:14
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.
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.