16-01-2026 00:45
Ethan CrensonHi all, On decorticated hardwood from a New York
18-01-2026 12:24
Josep Torres
Hello.An anamorph located on the surface of a thin
17-01-2026 19:35
Arnold BüschlenHallo, ich suche zu Cosmospora aurantiicola Lite
08-12-2025 17:37
Lothar Krieglsteiner
20.6.25, on branch of Abies infected and thickened
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Tom SchrierHi all,We found picnidia on Protoparmeliopsis mur
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Danny Newman
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Lothar Krieglsteiner
this one is especially interesting for me because
Is this a Phaeohelotium on a female catkin of Alnus?
François Bartholomeeusen,
19-06-2024 18:32
Asci: 73x7.5 µm; croziers +; LUG +;
Paraphysis: With refractive guttules,
Spore: (15.6) 16.2 - 18.2 (18.4) × (3.7) 3.9 - 4.67 (4.7) µm; Me = 17.4 × 4.3 µm; Qe = 4.1
Could this be Phaeohelotium epiphyllum?
Thanks in advance,
François
Hans-Otto Baral,
19-06-2024 20:32
Re : Is this a Phaeohelotium on a female catkin of Alnus?
You should try to find living mature asci, also unemptied dead immature asci in IKI for the apical ring shape.
I think the long stipe excludes P. epiphyllum. Is the medulla non-gelatinous and withut crystals?
Living paraphyses with their contents are required.
François Bartholomeeusen,
20-06-2024 08:54
Re : Is this a Phaeohelotium on a female catkin of Alnus?
Dear Zotto,
The medulla is non-gelatinous and without crystals. Right now the FRBs are immature and I cannot determine the apical ring in IKI.
Thank you very much for your quick response!
François
The medulla is non-gelatinous and without crystals. Right now the FRBs are immature and I cannot determine the apical ring in IKI.
Thank you very much for your quick response!
François
François Bartholomeeusen,
20-06-2024 11:31
Re : Is this a Phaeohelotium on a female catkin of Alnus?
I'm sorry, but I want to show you more pictures. Maybe there are crystals after all? I thought it was a contamination with conidia. I also found a reference to Ombrophila rivulorum which shows a great similarity in appearance.
Maybe an Ombrophila after all?
Maybe an Ombrophila after all?
François
Hans-Otto Baral,
20-06-2024 12:03
Re : Is this a Phaeohelotium on a female catkin of Alnus?
II think you are now on the right track. Though very small these are crystals in the hymenium.
The living paraphysis cels are here empty. In the last pic it looks a bit like VBs but elongated as typical of Ombrophila.
The genus is very difficult.