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15-04-2026 19:33

Scutellinia cf. citrina
Fátima Durán Manzaneque

Hi!! I need help, I found this Ascomycete but I d

14-04-2026 05:32

Pyrenomycete with yellow subiculum on Aralia
Ethan Crenson

Hi all, A few weeks back a friend pointed out som

14-04-2026 21:52

Thyriothecioid anamorph on Carex elata
Gernot Friebes

Hi,found on dead leaves of Carex elata. Conidia: 4

14-04-2026 20:31

Psilachnum lateritioalbum on Phragmites australis?
Gernot Friebes

Hi,can this be Psilachnum lateritioalbum on Phragm

12-04-2026 17:56

Seeking genus for 1 – 3 septate spored asco. on herb Nepteta cataria (Mint).
Hardware Tony Hardware Tony

Found on dead stems in February earlier this year

12-04-2026 15:52

Anamorph on Salix
Gernot Friebes

Hi,I'm looking for help with this anamorph collect

12-04-2026 12:22

Unknown anamorph on Primula eliator
William Slosse William Slosse

In a dune grassland in Oostduinkerke (Belgium), on

11-04-2026 15:45

Article search - Octospora ithacaensis
Zuzana Sochorová (Egertová) Zuzana Sochorová (Egertová)

Please, could anyone send me this paper?Moyne G.,

11-04-2026 13:34

Requesting help with Dasyscyphella sp. ID
Artem Ptukha

Hello, I am seeking assistance with the identific

11-04-2026 10:42

Una para ID
Castillo Joseba Castillo Joseba

Me mandan el material de Galicia, España, recolec

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Is this a Phaeohelotium on a female catkin of Alnus?
François Bartholomeeusen, 19-06-2024 18:32
On female Alnus catkins I found very small fruit bodies (height < 3 mm; disk < 2mm). The disc had a pink / viollet shade.
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

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Hans-Otto Baral, 19-06-2024 20:32
Hans-Otto Baral
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


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?

François

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Hans-Otto Baral, 20-06-2024 12:03
Hans-Otto Baral
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.