18-08-2025 15:07
Lothar Krieglsteiner
.. 20.7.25, in subarctic habital. The liverwort i
02-02-2026 21:46
Margot en Geert VullingsOn a barkless poplar branch, we found hairy discs
02-02-2026 14:55
Andgelo Mombert
Bonjour,Sur thalle de Lobaria pulmonaria.Conidiome
02-02-2026 14:33
Andgelo Mombert
Bonjour,Sur le thalle de Peltigera praetextata, ne
31-01-2026 10:22
Michel Hairaud
Bonjour, Cette hypocreale parasite en nombre les
02-02-2026 09:29
Bernard CLESSE
Bonjour à toutes et tous,Pour cette récolte de 2
01-02-2026 19:29
Nicolas Suberbielle
Bonjour, Marie-Rose D'Angelo (Société Mycologiq
31-01-2026 09:17
Marc Detollenaere
Dear Forum,On decorticated wood of Castanea,I foun
29-08-2025 05:16
Francois Guay
I think I may have found the teleomorph of Dendros
Bryophilous Helotiales on Riccia cilifera
Koszka Attila,
03-02-2020 13:55
I could not identify this tiny rose discoid thing with no stipe.
Does anybody have some experience with this?
Thanks: Attila
Hans-Otto Baral,
03-02-2020 15:01
Re : Bryophilous Helotiales on Riccia cilifera
I do not know at all but there are a few questions:
Could you study the excipulum?
Iodine reaction seems negative?
Are there any paraphyses?
Do you still have it fresh and could make a water mount without pressing? Living asci and paraphyses could be helpful.
Your beforelast photo seems in water, do you also have a photo at high magnification showing the septum in vivo?
Size of apos is around 0.5 mm?
Zotto
Hans-Otto Baral,
05-02-2020 11:16
Re : Bryophilous Helotiales on Riccia cilifera
I asked Peter Döbbeler and he suggested it could be Pachydisca amoena:
Only the spores are given shorter and no septum is mentioned.
Zotto
Koszka Attila,
06-02-2020 12:03
Re : Bryophilous Helotiales on Riccia cilifera
Sorry for this late ansver, but I was busy in this week.
Unfortunatelly I have not study the excipular part.
Iodine reaction seems mainly negative, but perhaps
wery weakly positive in some immature ascus.
Paraphyses is thin, long-cylidrical, with slightly broad an rounded tips, no pigment bodies.
I cannot have it in fresh, but the collection place where I found it, is exacly known.
The fruiting bodies is 0,1-0,5 mm, resting stalkless near the side and near the base side of the moss-leaves.
It seems to me, that the spores become septate only in the fully mature ascospores.
Attila
Unfortunatelly I have not study the excipular part.
Iodine reaction seems mainly negative, but perhaps
wery weakly positive in some immature ascus.
Paraphyses is thin, long-cylidrical, with slightly broad an rounded tips, no pigment bodies.
I cannot have it in fresh, but the collection place where I found it, is exacly known.
The fruiting bodies is 0,1-0,5 mm, resting stalkless near the side and near the base side of the moss-leaves.
It seems to me, that the spores become septate only in the fully mature ascospores.
Attila
Hans-Otto Baral,
06-02-2020 15:06
Re : Bryophilous Helotiales on Riccia cilifera
Thanks for more details. The matter with spore septation requires living asci, it is frequently misunderstood or differently defined. My definition of maturity is: freshly ejected spores. Which they are you can only decide if you have living asci.