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22-04-2026 20:17

Marian Jagers Marian Jagers

Is anyone familiar with the Hyphomycetes genus Pse

23-04-2026 06:46

François Freléchoux François Freléchoux

Bonjour, Voici la description d'un minuscule asco

21-04-2026 22:14

Margot en Geert Vullings

This cup fungus was found on April 10, 2026, on lo

22-04-2026 20:54

Enrique Rubio Enrique Rubio

Hi to everybody.This Pyrenopeziza grew in moist le

22-04-2026 19:12

Louis DENY

Bonjour forum.Trouvé à Belfort, est de la France

21-04-2026 21:00

Sylvie Le Goff

Bonjour à tousJe sollicite votre aide pour cet as

22-04-2026 01:06

Richard VALERI Richard VALERI

Bonjour à tous.Je vous présente cette Nectria s.

21-04-2026 13:36

Gernot Friebes

Hi,I am out of ideas for this one. I collected Sal

21-04-2026 13:19

Gernot Friebes

Hi,this Lophodermium on Typha has ascospores measu

21-04-2026 13:05

Gernot Friebes

Hi,this hyphomycete feels familiar but I was not a

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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