07-12-2025 16:07
Arnold BüschlenHallo, ich habe in einer Moos-Aufsammlung (epiphy
08-12-2025 21:04
Mark Stevens"Hello everyone,I'm relatively new to microscopy (
09-12-2025 12:06
Andgelo Mombert
Bonjour,Je recherche l'article concernant Hypobryo
08-12-2025 18:59
Lothar Krieglsteiner
.. found by a seminar-participant, I do not know t
08-12-2025 17:37
Lothar Krieglsteiner
20.6.25, on branch of Abies infected and thickened
16-03-2014 22:00
Ralph Vandiest
Hello,I found this species a few months ago but ha
08-12-2025 13:39
Thomas Læssøehttps://svampe.databasen.org/observations/10572899
Rose-coloured pyrenos on Cirsium
Juuso Äikäs,
08-08-2023 14:07
The asci are 8-spored and IKI negative. The spores are mostly 2-celled and measure 13.6 - 20.4 × 4.1 - 4.8 µm.
Maybe this is something in Nectriaceae, or something close to that?
Andgelo Mombert,
08-08-2023 15:06
Re : Rose-coloured pyrenos on Cirsium
Bonjour,
Je pense qu'il s'agit d'un Hydropisphaera. Il y a une clé de Lechat et Fournier dans la revue Ascomycete.org.
Dans le bleu coton, les spores sont ornementées ?
Je pense qu'il s'agit d'un Hydropisphaera. Il y a une clé de Lechat et Fournier dans la revue Ascomycete.org.
Dans le bleu coton, les spores sont ornementées ?
Juuso Äikäs,
08-08-2023 17:36
Re : Rose-coloured pyrenos on Cirsium
Thanks for the reply. I found the paper, and the closest fit might be H. cirsii. The name sounds promising, and the substrate of my collection might very well be Cirsium arvense, like mentioned in the paper.
However, that species should have hairs, and the spores should be finely spinulose (although they did look rather smooth in the pic). My collection seems to have smooth spores in CB (I can't rule out some very fine ornamentation). The spore shape and measurements would be fairly close, as would the size and color of the perithecia.
Maybe I'll name this just Hydropisphaera sp.
However, that species should have hairs, and the spores should be finely spinulose (although they did look rather smooth in the pic). My collection seems to have smooth spores in CB (I can't rule out some very fine ornamentation). The spore shape and measurements would be fairly close, as would the size and color of the perithecia.
Maybe I'll name this just Hydropisphaera sp.
Nick Aplin,
19-08-2023 21:18
Re : Rose-coloured pyrenos on Cirsium
Sorry for the late comment - Might it also be worth comparing this collection to Nectriella dacrymycella?
Regards,
Nick
Regards,
Nick