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20-02-2016 17:21

hannie wijers

Good afternoon.Ik like some help from someone.In t

20-02-2016 23:17

William Slosse William Slosse

I fownd this species in an old, fallen tree (Popu

19-02-2016 18:30

Enrique Rubio Enrique Rubio

Hi forum Has anyone some idea about these very s

21-02-2016 12:19

Rubén Martínez-Gil Rubén Martínez-Gil

Hola a todos. Subo unas fotos de un asco que hemo

20-02-2016 09:18

Eike Heinemann

Good morning,in October I found this little black

21-02-2016 00:08

Rubén Martínez-Gil Rubén Martínez-Gil

Hola a todos. Subo unas fotos de un asco que hemo

19-02-2016 00:38

Lothar Krieglsteiner Lothar Krieglsteiner

.. found today in the reserve Fonte Benemola, but

19-02-2016 21:02

Rémi Péan

BonsoirJe recherche une clé de détermination des

19-02-2016 23:38

Bernard CLESSE Bernard CLESSE

Bonsoir à tous,Voici ce que je pense être un Orb

19-02-2016 22:09

Bernard CLESSE Bernard CLESSE

Je suppose que vous le connaissez mais comme on ne

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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