14-11-2025 16:26
Marian Jagers
Hello everyone, On dead wood of Cytisus scoparius
14-11-2025 18:31
Lothar Krieglsteiner
Hello,can somebody provide me with a file of:Rothe
12-11-2025 09:25
Viktorie Halasu
Hello, I need help with a pale terrestric Pseudom
11-11-2025 20:16
Bohan JiaHi, lastly I have found these tiny yellow decayin
09-11-2025 13:20
Josep Torres
Hello.A tiny ascomycete, appearing as erupting gra
08-11-2025 00:29
Francois Guay
I found this species in Quebec, Canada, on herbace
Rutstroemia
Joaquin Martin,
30-08-2025 18:29
I found this undetermined ascomycete on broadleaf wood in a botanical garden with many exotic trees.
The spores measure 19-22 x 4.7-5.4 µm.
I am thinking of Rutstroemia, but either the habitat or the spores do not match.
Any ideas?
Thank you.
Hans-Otto Baral,
30-08-2025 20:20
Re : Rutstroemia
Why do you think R. firma does not fit? Spore size, shape and content is o.k. for it. E.g. Huhtinen 1984 measured 19-23 x 4-5 for a sample on Alnus.
There is a R. alnobetulae which could alternatively fit. I remember the contents of the paraphyses stained blue in IKI, and the ectal excipulum is more gelatinous.
Joaquin Martin,
31-08-2025 08:43
Re : Rutstroemia
Hi,
I have never seen it so funnel-shaped and always with minor spores.
Thank you.
I have never seen it so funnel-shaped and always with minor spores.
Thank you.
Hans-Otto Baral,
31-08-2025 09:40
Re : Rutstroemia
R. firma is variable and occurs in a shorter- and straight-spored form. Probably there is a heterogeneity, becasue of a distinct genetical difference among collections which needs more study.
I think the apo shape is not important.
Joaquin Martin,
31-08-2025 13:12
Re : Rutstroemia
Hi,
Thank you for the explanation.
Good day.
Thank you for the explanation.
Good day.