17-04-2025 15:37
Nicolas VAN VOOREN
Bonjour.Je suis à la recherche de collections (r
17-04-2025 13:23
Jan EcksteinHello,there is an interesting collection of a tiny
16-04-2025 08:53
Josep Torres
Hello.An anamorph photographed under holm oaks thi
15-04-2025 15:06
Francois Guay
I found this small white disco on decaying deciduo
13-04-2025 22:47
éric ROMERO
Bonjour, Je sollicite votre avis pour cette colle
15-04-2025 21:39
Andreas Gminder
Dear all,struggeling as every year with the aquati
10-04-2025 10:09
Mathias Hass
Hi, Found in March on last years stick from Rubus
09-04-2025 19:37
Miguel Ángel Ribes
Good afternoon This 1-2 mm Mollisia was growing o
14-04-2025 23:19
Viktorie Halasu
Hello, I've microscoped exsiccate of an Otidea wh
14-04-2025 15:11
Lennert GeesGreetings!For my master's dissertation I work on c
unknown pyrenomycet 1
Gernot Friebes,
29-03-2009 15:10
it's my first post here and I'm starting with two pyrenomycetes. I was not able to determine them with my literature.
Yesterday I found this one. Spores: 26-27 x 9-10 µm, are brown, two-celled and one half is smaller than the other. It grew on old wood of a deciduous tree.
Best wishes,
Gernot Friebes
Gernot Friebes,
29-03-2009 15:12
Re:unknown pyrenomycet 1
spores
Jacques Fournier,
29-03-2009 15:25
Re:unknown pyrenomycet 1
Hi Gernot,
your photos of small conical ascomata and unequally two-celled ascospores remind me Kirschsteiniothelia aethiops. You should first check if asci are bitunicate and hamathecium composed of cellular (septate) filiform elements.
If yes, K. aethiops is characterized by obclavate asci (broader at base then at apex) and a conspicuous sheath around ascospores. Ascospores are verruculose, but this is not diagnostic.
Please come back with good photos af asci and spores!
Jacques
your photos of small conical ascomata and unequally two-celled ascospores remind me Kirschsteiniothelia aethiops. You should first check if asci are bitunicate and hamathecium composed of cellular (septate) filiform elements.
If yes, K. aethiops is characterized by obclavate asci (broader at base then at apex) and a conspicuous sheath around ascospores. Ascospores are verruculose, but this is not diagnostic.
Please come back with good photos af asci and spores!
Jacques
Hans-Otto Baral,
29-03-2009 15:41
Re:unknown pyrenomycet 1
It should be added that the species was earlier named Astrosphaeriella applanata, e.g. in Dennis 1978
Zotto
Zotto
Gernot Friebes,
29-03-2009 18:03
Re:unknown pyrenomycet 1
Hallo Jacques and Zotto,
thank you for your answers!
Here are new fotos of the pyrenomycet, I think they fit quite well with the description of Kirschsteiniothella aethiops except for the spores which don't have a sheath.
Best wishes,
Gernot
thank you for your answers!
Here are new fotos of the pyrenomycet, I think they fit quite well with the description of Kirschsteiniothella aethiops except for the spores which don't have a sheath.
Best wishes,
Gernot
Jacques Fournier,
29-03-2009 18:23
Re:unknown pyrenomycet 1
the sheath can be observed on released spores only, it is quite conspicuous in water on fresh material. Otherwise all the rest is OK.
Jacques
Jacques
Gernot Friebes,
29-03-2009 19:08
Re:unknown pyrenomycet 1
you are right, there really is a sheath.
Best wishes,
Gernot
Best wishes,
Gernot
