10-06-2026 23:08
éric ROMERO
Bonjour tous, Je vous propose un Mollisia trouvé
10-06-2026 12:54
Steve ClementsBonjour encore, Pouvez-vous m'aider, s'il vous pl
09-06-2026 18:32
Camille MertensSur morceau de roseau immergé 0,5 - 0,7 mm de dia
10-06-2026 21:16
François Freléchoux
Bonsoir,Le dernier du jour, en attendant votre avi
10-06-2026 21:07
François Freléchoux
Toutes les tiges de gentianes jaunes de l'an passÃ
10-06-2026 13:41
François Freléchoux
Bonjour à nouveau, Voici une trouvaille d'hier.
10-06-2026 11:53
Steve ClementsBonjour, This disco is abundant on dead stems of
10-06-2026 10:45
François Freléchoux
Bonjour à nouveau, Encore une détermination qui
08-06-2026 10:16
Spooren Marco
I don`t have a clou about this fungus,it is not in
10-06-2026 09:24
François Freléchoux
Bonjour, J'imagine que cette détermination ne do
Vibrissea flavovirens?
Stefan Jakobsson,
08-07-2022 02:34
Can it be confirmed that this is V. flavovirens?
Hans-Otto Baral,
08-07-2022 08:39
Re : Vibrissea flavovirens?
I think the colour is not so important. Since I do not have an overniew on available measurements, I cannot easily say if such small measurements ever occurred, but I do not know a further species with these characters.
Stefan Jakobsson,
08-07-2022 11:49
Re : Vibrissea flavovirens?
Thank you!
I looked up the asci and spore size in a few sources.
Hans-Otto Baral,
09-07-2022 09:42
Re : Vibrissea flavovirens?
Thanks for this survey. In my key I wrote for flavovirens:
asci *260-343 x 6.5-8.8 µm
spores *125-195 x 1.2-1.8 µm
spore fragments *(27–)30-42(–51) µm
Ascus measurements in your table are probably mostly in dead state, but the differences to living asci are apparently not very high.
In the type of V. minima Velen. on Salix, which I restudied and considered a synonym, I found asci +154 x 4.8-5.3 and spore fragments 27-48 µm. So your spore fragments are a bit shorter than usual.
In a collection from Sheffield (HB 9520) I measured spores *125-134 µm long (like yours), breaking into 4 part spores of *27-38 x 1.3-1.6 µm, 4-celled (ascus length not measured).
In the case there is a continuum of measurements among collections, I suspect that living asci much shorter than 260 µm also occur.
Identities in the literature are perhaps not certain. E.g. Zheng & Zhuang 2017 do not mention the number of spore cells and fragments, but the spore photo suggests flavovirens indeed.