29-12-2025 08:30
Josep Torres
Hello.A tiny ascomycete sprouting under Juniperus
29-12-2025 10:15
Hulda Caroline HolteHello, I found and collected this propoloid ascom
29-12-2025 09:38
Oskari VirtanenHi,could anyone help me identify this, I suspect P
28-12-2025 12:08
Margot en Geert VullingsThis possible Karstenia was found on the bark of d
21-12-2025 21:32
Pol DebaenstHello, Garden, Burgweg 19, Veurne, BelgiumOn 10/1
26-12-2025 21:19
Arnold BüschlenPithyella chalaudii Priou. Ist als Bryoparasit in
21-12-2025 09:32
Josep Torres
Hello.A tiny ascomycete found embedded in wood in
18-12-2025 21:17
Pol DebaenstThe identification took me to Byssonectria deformi
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.