23-02-2026 11:22
Thomas Læssøehttps://svampe.databasen.org/observations/10584971
29-11-2024 21:47
Yanick BOULANGERBonjourJ'avais un deuxième échantillon moins mat
07-02-2023 22:28
Ethan CrensonHello friends, On Sunday, in the southern part of
19-02-2026 17:49
Salvador Emilio JoseHola buenas tardes!! Necesito ayuda para la ident
19-02-2026 13:50
Margot en Geert VullingsWe found this collection on deciduous wood on 7-2-
16-02-2026 21:25
Andreas Millinger
Good evening,failed to find an idea for this fungu
08-12-2025 17:37
Lothar Krieglsteiner
20.6.25, on branch of Abies infected and thickened
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