20-05-2025 22:15
Francois Guay
I found this ascomycete at the base of a dead fern
30-05-2025 17:54
Louis DENYHello forum!Touvé près de Belfort, altitude 350m
31-05-2025 00:51
Ethan CrensonHello, Last week in New York City this Orbilia wa
30-05-2025 17:55
Louis DENYHello forum!Touvé près de Belfort, altitude 350m
30-05-2025 12:53
Gernot FriebesHi,I'm struggling to find a name for this species.
28-05-2025 21:19
Terje KristiansenThe rose is intertwined with black elderberry.Prob
Hi together,Maybe someone has an idea about this one. It's a setose coelomycete that grew on the lower Surface of dead leaves of Rosa rugosa, directly at the coast of Northern Germany, found by Torsten Richter. In the vicinity, Breviappendix rosae could be found, but on differernt leaves. I'm not sure whether there could be a connection between these two.
Some data:
Conidiomata up to 430 µm accross
Setae: 90 - 180 × 6 - 8.3 µm
Conidia:
(7.5) 8.1 - 9.8 (10.3) × (1.8) 1.82 - 2.2 (2.3) µm
Q = (3.6) 4.3 - 5.1 (5.4) ; N = 20
Me = 9.1 × 2.0 µm ; Qe = 4.6
There do not seem to be any appendages on the conidia. Further, I could not observe conidiogenous cells or the conidiogenesis, what surely does not faciliate determination, but I even don't have any idea so far. If neccessary, I could try to get more details. Any hints are welcome.
Thanks in advance,
Matthias
very interesting.
You can compare with Dinemasporium asetulum.
But this species is report from africa.
best regards,
Thorben
Compare with Chaetomella oblonga.
This species is described on leaves of Rosa and the micro features fits well.
But conidiogenous cells are present.
vielen Dank, das passt perfekt.
Ich hab nochmal am Exsikkat nachuntersucht, Konidienträger gibt es natürlich, dazu war das erste Präparat nur nicht gut genug. Jetzt hab ich sie gefunden, auch die passen für deinen Vorschlag.
Anbei noch ein paar Bilder.
Viele Grüße
Matthias
