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12-12-2019 18:36

Roland Labbé

Bonjours ! Voici un Trichoderma (Hypocrea) inconn

11-12-2019 23:29

Juuso Äikäs

I found these in a Picea abies dominated forest in

14-12-2019 10:09

Marc Detollenaere Marc Detollenaere

Dear forum,   On a decorticated trunk of Populu

13-12-2019 20:42

Götz Palfner Götz Palfner

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

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 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

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

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Amicodisca sp. with asci with croziers
Enrique Rubio, 29-08-2012 18:47
Enrique RubioHi to all

These small and narrowly sessile ascomata up to 400 microns  grew on Betula alba wood at 1650 m of altitude. KOH negative.
I think is an Amicodisca species but their asci have persistentely croziers.
What's your opinion? 
Many thanks again
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Chris Yeates, 29-08-2012 20:50
Chris Yeates
Re : Amicodisca sp. with asci with no croziers
Hello Enrique
I do not know this genus (I wish I did!) but looking at Zotto's DVD not having croziers seems to be quite typical of it

best wishes
Enrique Rubio, 29-08-2012 21:01
Enrique Rubio
Re : Amicodisca sp. with asci with croziers
Thank you, Chris. I'm sorry but I was wrong and wrote that the asci have not croziers (typical for Amicodisca) when my collection has asci WITH CROZIERS !

Hans-Otto Baral, 29-08-2012 21:18
Hans-Otto Baral
Re : Amicodisca sp. with asci with croziers
Dear Enrique

I believe this is very similar to A. virella, mainly differing in croziers and slightly smaller spores.

There is a key in a recent Japanese paper (Han et al. 2012), but it does not include your species. I send you the pdf.

Probably undescribed!

Björn Wergen, 30-08-2012 00:21
Björn Wergen
Re : Amicodisca sp. with asci with croziers

Zotto, can you send it to me too? I am interested in this genus. Nice finding, Enrique.

Guy Garcia, 30-08-2012 07:51
Enrique Rubio, 30-08-2012 13:52
Enrique Rubio
Re : Amicodisca sp. with asci with croziers
Thanks a lot, Zotto.

I think could be an undescribed species of Amicodisca but the question is: Which is the importance of having or not having croziersr to differentiate two species ?


Thanks for the paper
Hans-Otto Baral, 30-08-2012 22:28
Hans-Otto Baral
Re : Amicodisca sp. with asci with croziers
This is actually not always clear. It depends on the case. But generally the difference in the ascus base seems to have to do with a specific split of populations which do not further interbreed. If you find other distinguishing features it is easier to make such a distinction. But in the case of H. albidus/pseudoalbidus we have only slight correlations in other features of the apothecia. But we have strong pathogenic differences, and also such in the anamorph. Who knows what Amicodisca does in pure culture...

Enrique Rubio, 31-08-2012 12:33
Enrique Rubio
Re : Amicodisca sp. with asci with croziers

What little we know still!