03-02-2020 13:55
Koszka AttilaDear Forum!I could not identify this tiny rose dis
05-02-2020 22:22
Ethan CrensonHello all,Earlier this week I found this orange er
01-02-2020 11:24
Bernard CLESSE
Bonjour à toutes et tous,Voici de petits ascos su
05-02-2020 12:27
Luc Bailly
Bonjour à tous, Roche-à -Frêne, 15.01.20, s/ go
05-02-2020 13:06
Valencia Lopez Francisco JavierHola amig@sPezizas sp, recolectadas en una cañada
05-02-2020 12:44
Luc Bailly
Une Microthyriaceae s/ tige de Rubus idaeus. Sur l
05-02-2020 12:17
Alain GARDIENNET
Hi forum, I need : page 10 of Grube & Matzer
02-02-2020 10:34
Patrice Messin
Bonjour,Je suis dans ce forum, depuis quelques tem
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.