Accès membres

Mot de passe perdu? S'inscrire

18-08-2025 15:07

Lothar Krieglsteiner Lothar Krieglsteiner

.. 20.7.25, in subarctic habital. The liverwort i

02-02-2026 21:46

Margot en Geert Vullings

On a barkless poplar branch, we found hairy discs

02-02-2026 14:55

Andgelo Mombert Andgelo Mombert

Bonjour,Sur thalle de Lobaria pulmonaria.Conidiome

02-02-2026 14:33

Andgelo Mombert Andgelo Mombert

Bonjour,Sur le thalle de Peltigera praetextata, ne

31-01-2026 10:22

Michel Hairaud Michel Hairaud

Bonjour, Cette hypocreale parasite en nombre les

02-02-2026 09:29

Bernard CLESSE Bernard CLESSE

Bonjour à toutes et tous,Pour cette récolte de 2

01-02-2026 19:29

Nicolas Suberbielle Nicolas Suberbielle

Bonjour, Marie-Rose D'Angelo (Société Mycologiq

30-01-2026 22:49

éric ROMERO éric ROMERO

Bonjour tous, Récolté dans les Vosges le 22/10/

31-01-2026 09:17

Marc Detollenaere Marc Detollenaere

Dear Forum,On decorticated wood of Castanea,I foun

29-08-2025 05:16

Francois Guay Francois Guay

I think I may have found the teleomorph of Dendros

« < 1 2 3 4 5 > »
Xylaria
hannie wijers, 20-02-2016 17:21
Good afternoon.
Ik like some help from someone.

In the Bush (tropical conditions) of a zoo I found these Xylaria. They grew at wood and had a decent length. I took some material and at home I did it under the microscope. I was expecting brown spores and was surprised to find clear spores. This appears to be a anamorph? The sizes of the Konidiensporen between 4.5 to 8 x 1.5 - 4 microns.
Has anyone an idea for me?

Groeten
Hannie
  • message #41077
Jacques Fournier, 20-02-2016 18:09
Jacques Fournier
Re : Xylaria
Hi Hannie,
what you observed under the microscope is indeed conidia, not ascospores. Xylaria spp. can rarely be identified at this conidial stage, especially tropical ones. You can just try to incubate the piece of wood in "tropical" conditions.
Good luck!
Jacques
hannie wijers, 20-02-2016 18:51
Re : Xylaria
Thank you Jacques, it will stay Xylaria spp. It was a heacy log and I coildn't get some of the wood. Thanks anyway.

Groeten
Hannie
hannie wijers, 22-02-2016 14:55
Re : Xylaria
Hello, 

I'm very curious and have no peace with this species. I got through a forum of Marijke Nauta whether it might not be a Phaeoisaria? I looked at Ellis and Ellis (microfungi on land plants p 60) and think this may be perhaps Phaeoisaria clamatidis?

Any suggestion?

groeten
Hannie
Jacques Fournier, 22-02-2016 15:11
Jacques Fournier
Re : Xylaria
Hi Hannie,
Phaeoisaria is rarely over 1 mm high and can hardly be confused with a Xylaria. You did not mention the size of your fungus but I guess it is several cm high.
Moreover, such conidia only are usually not suggestive of a hyphomycee genus, you have to study carefully the conidiogenous structure which is basic to the classification of hyphomycetes.
Cheers,
Jacques
hannie wijers, 22-02-2016 18:59
Re : Xylaria
Hallo Jacques, Yiu are right the Xylaria I saw was about  6 cm. lenght. Thanks you for explanation.

groeten
Hannie