Accès membres

Mot de passe perdu? S'inscrire

24-08-2020 13:00

Literature request: von Arx 1973
Yulia Lytvynenko Yulia Lytvynenko

Dear friends.Looking for a copy of the following w

11-07-2024 14:29

Mollisia cf caricina
Viktorie Halasu Viktorie Halasu

Hello, a thin-fleshed Mollisia on a monocot stem

15-07-2024 10:38

Ascobolus
Joaquin Martin

Hi, I found this Ascobolus in company of Cheilyme

14-07-2024 18:23

Ascomycete on dung
Joaquin Martin

Hi,I found this Ascomycete on horse dung.The spora

13-07-2024 19:50

Hamatocanthoscypha conincola
Zuzana Sochorová (Egertová) Zuzana Sochorová (Egertová)

Hello,I have identified this fungus as Hamatocanth

11-01-2022 16:36

Literature request: Raitviir (2004) Revised synopsis of Hyaloscyphaceae?
Jason Karakehian Jason Karakehian

Hi does anyone have a digital copy of Raitviir A (

08-07-2024 23:34

Scutellinia umbrarum?
Villalonga Paco

Small Scutellinia growing in garden soil (calcareo

12-07-2024 02:12

Trichopezizella on Carex
Stefan Jakobsson

On a wet lake shore I found a single minute apothe

11-07-2024 10:57

Mollisia aff benesuada on leaf
Viktorie Halasu Viktorie Halasu

Hello, I have here a Mollisia on a leaf (possibly

07-07-2024 10:07

Yellowish apothecias on Sorbus
Thomas Flammer

I am struggeling with some tiny yellowish apotheci

« < 1 2 3 4 5 > »
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

  • message #79542
  • message #79542
  • message #79542
  • message #79542
  • message #79542
  • message #79542
  • message #79542
  • message #79542
  • message #79542
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

  • message #79552
  • message #79552
  • message #79552
  • message #79552
  • message #79552
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.