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23-06-2025 13:25

Subalpine Scutellinia
Enrique Rubio Enrique Rubio

I would like to hear your opinion on this Scutelli

25-06-2025 16:56

Scutellinia cejpii ?
Philippe PELLICIER

Bonjour, pensez-vous que S. ceijpii soit le nom co

25-06-2025 16:25

Cup fungus - Request for help
Thomas Flammer

My first impression was sth like Rutstromeia, but

24-06-2025 22:29

California Subalpine Snowmelt Fungi
Danny Newman Danny Newman

Hello AscoFrance, I have recently photographed, c

24-06-2025 14:00

Ascomycete on bat poop in cave
Warre Van Caenegem

I'm currently in Croatia doing fieldwork that is n

23-06-2025 04:03

Sulfur yellow tiny asco on hardwood
Francois Guay Francois Guay

Hi, I found this tiny sulfur yellow asco growing o

22-06-2025 13:52

Peziza acroornata - Literature request
DirkW DirkW

Dear friends,anyone out there with this paper?:DOU

26-05-2025 18:09

Cytospora spec./ Valsa spec.
Henk Remijn

Good day,In a burned forest near Hulst on the bord

21-06-2025 22:27

Calycina?
David Chapados David Chapados

Hi,Is this a Calycina? C. herbarum?Growing on an h

20-06-2025 08:33

Ascomycete on a herbaceous stem.
Josep Torres Josep Torres

Hello.Small, blackish, mucronated surface grains s

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Hypoxylon fraxinophilum/intermedium?
Björn Wergen, 01-01-2012 20:41
Björn WergenHi again,

there are a few hypoxylon-like specimen I have found the last days, one of them is this small Hypoxylon on a Fraxinus twig. It has interesting microscopical features. Perhaps someone can give me some tips with the two species H. fraxinophilum and H. intermedium.

Ostioles have small but nearly invisible "discs" (visible only under x40). I did not find any comparable species (there are no photos with the hyaline sheaths).

regards,
björn
  • message #17062
  • message #17062
Gernot Friebes, 01-01-2012 21:06
Re : Hypoxylon fraxinophilum/intermedium?
Hi Björn,

yes, I'm quite sure that your determination is correct. It is a very common species in riparian forests to my experience. As far as I know, H. fraxinophilum is a synonym of H. intermedium.

Best wishes,

Gernot
Björn Wergen, 01-01-2012 21:11
Björn Wergen
Re : Hypoxylon fraxinophilum/intermedium?
Hi Gernot,

yes, I thought the same about it, but I was not sure after looking for it in indexfungorum.org (H. fraxinophilum is a correct name there). I have never seen H. intermedium before.

Danke für die Hilfe Gernot und Gruß nach Österreich :)

regards,
björn