08-08-2023 14:07
Juuso ÄikäsThese little pyrenos were growing on a dead stem o
18-08-2023 19:01
Chris Yeates
Bonsoir tous Mycobank and Index Fungorum both pla
18-08-2023 16:18
Castillo Joseba
del pasadomiercoles en bosque de hayas y abetos,
17-08-2023 19:35
Enrique Rubio
On dead branches of Sorbus aucuparia still attache
14-08-2023 20:21
Thierry Blondelle
Bonjour à tous,Je vous soumets cette récolte du
31-07-2023 13:10
Elisabeth StöckliBonjour, Sur pierre recouvertes de mousses (musci
15-08-2023 16:47
Bernard Declercq
Hello there,Collected as per 13/8/23 on twig of Al
14-08-2023 20:58
Ruud R.van MiddelkoopJ'aimerais savoir de quelle espèce il s'agit.Pezi
12-08-2023 22:28
Bernard CLESSE
Bonsoir à toutes et tous,Pourriez-vous me confirm
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