Accès membres

Mot de passe perdu? S'inscrire

11-12-2019 23:29

Juuso Äikäs

I found these in a Picea abies dominated forest in

11-12-2019 22:21


Bonsoir à toutes et tous,Pourriez-vous me confirm

08-12-2019 11:01

Gilbert MOYNE

Bonjour, Un petit champignon que m'a remis Andgel

13-12-2019 20:42

Götz Palfner Götz Palfner

Bonjour tous,Sorry, but as my French is crap, I wi

13-12-2019 16:20

Chris Yeates Chris Yeates

Bonjour tous this is an area I feel rather ignora

12-12-2019 23:42

Maren Kamke Maren Kamke

Hello together, can someone provide me with this

12-12-2019 18:36

Roland Labbé

Bonjours ! Voici un Trichoderma (Hypocrea) inconn

07-12-2019 22:22

Rubén Martínez-Gil Rubén Martínez-Gil

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

11-12-2019 23:25

Ethan Crenson

Hello all,This was found by a friend in New York C

09-01-2015 12:57

Alan Rockefeller Alan Rockefeller

I found this in a semitropical area of Queretaro,

« < 1 2 3 4 5 > »
Xylaria grex oxyacanthae
Enrique Rubio, 11-06-2015 20:36
Enrique Rubio

Hi to everybody and specially Jacques Fournier

Today we have examined these gregarious stromata up to 40 mm high growing on buried seeds of Cornus sanguinea or Crataegus monogyna. We don't know what the host is because they are living together and the stromata were growing under both trees.

After reading wonderfull Fournier's keys we are observing that our ascospores are greater: 12-16 x 5-7 versus 11-13 x 4.6-5.9 sec. Jacques. Also we have seen that collections on Cornus seeds can be greater. The question is:  There is some innovation on this matter?


Many thanks in advance

  • message #36523
  • message #36523
  • message #36523
Enrique Rubio, 23-06-2015 20:08
Enrique Rubio
Re : Xylaria grex oxyacanthae
Since in this place there were only one Cornus mixed with a Crategus one, we gathered carefully only those that were growing on Crategus seeds. The result was surprising because the spores of these stromata growing on Crategus seeds show smaller ascospores according to the typical Xylaria oxyacanthae.
  • message #36673
Jacques Fournier, 26-06-2015 15:25
Jacques Fournier
Re : Xylaria grex oxyacanthae
Hola Enrique,
your observations are very interesting and strongly suggest that the Xylaria on Cornus fruits has larger ascospores than the one on Crataegus, as previously observed on the material collected by Peter Welt. I hope that will be sorted out on molecular grounds but it can be expected these fruit-inhabiting species are phylogenetically very closely related (see also X. delitschii). I have no new information so far.
Enrique Rubio, 26-06-2015 17:02
Enrique Rubio
Re : Xylaria grex oxyacanthae

HI Jacques

Welcome from the Antillas. I wish that you have found nice fungi.

Well, we will analyze both collections and I will keep you informed.

Thanks a lot, jacques