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11-12-2019 23:29

Juuso Äikäs

I found these in a Picea abies dominated forest in

11-12-2019 22:21

BERNARD CLESSE BERNARD CLESSE

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,

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Asco on stromata of Rhytisma salicinum
Enrique Rubio, 05-08-2013 20:01
Enrique RubioHello again

This spring we have found this strange fungus, perhaps close to the genus Ciboria, growing on old stromata of Rhytisma salicinum on decaying leaves lying on the ground of Salix sp. at 1600 m of altitude. At the same place thay are many stromata with  the ascomata of Rhytisma salicinum hanging on the branches of Salix.
This fungus was previously collected in another far place by our friend A. Román  and was showed in Ascofrance  http://www.ascofrance.com/search_forum/7900.


The ascospores are 2-nucleate, with polar dextrinoid bodys and late they seem to make sphaeric microconidia. Asci with apical pore of the Sclerotinia-type, with croziers. Medullary excipulum of textura intricata. Ectal excipulum globulosa, not blueing in IKI.  The paraphyses have not conspicuous Vb's. 


Have you any idea?
Thanks again
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Hans-Otto Baral, 05-08-2013 21:45
Hans-Otto Baral
Re : Asco on stromata of Rhytisma salicinum
Very interesting!

On Salix leaves exist with a similar spore size:
Moellerodiscus rathenowiana
Sclerotinia foliicola (Cash & Davidson) Whetzel
Ciborinia wisconsiensis  Batra

Not sure what Huhtinen 1985: 494 described as Ciborinia sp. from N-Quebec, on a flat sclerotium on salix leaves. Did he mistake the Rhytisma for a sclerotium??

Zotto
Enrique Rubio, 05-08-2013 22:07
Enrique Rubio
Re : Asco on stromata of Rhytisma salicinum
Thanks Zotto
Do you know where Huhtinen descibed the Ciborinia on Salix leaves?
Hans-Otto Baral, 05-08-2013 22:10
Hans-Otto Baral
Re : Asco on stromata of Rhytisma salicinum
You mean in which journal?

Here
Enrique Rubio, 05-08-2013 22:28
Enrique Rubio
Re : Asco on stromata of Rhytisma salicinum
Yes! I wanted this paper. Thanks

 
Really it's very difficult to know if Huhtinen's fungus is the same because he draws roundish guttules at the poles (the mine have only small guttules) and the ectal excipulum is said built by a textura angularis whereas in our fungus is clearly globulosa.


Hans-Otto Baral, 05-08-2013 22:33
Hans-Otto Baral
Re : Asco on stromata of Rhytisma salicinum
I assume he studied in the dead state, so globulosa may turn to angularis and LBs fuse :-)
Enrique Rubio, 05-08-2013 22:40
Enrique Rubio
Re : Asco on stromata of Rhytisma salicinum
Yes. You are right. It's very possible