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05-08-2013 20:01

Enrique Rubio Enrique Rubio

Hello againThis spring we have found this strange

05-08-2013 11:54

Michel Delpont Michel Delpont

Bonjour à vous.Je vous soumet ce champignon trouv

05-08-2013 11:32

FRANCIS FOUCHIER

Bonjour, je recherche les 2 documents suivants:Hel

18-07-2013 15:15

Michel RIMBAUD

Bonjour,Je sollicite votre aide pour mettre un nom

31-07-2013 04:15

Danny Newman Danny Newman

Mushroom Observer's Scutellinia pages have been ve

04-08-2013 00:47

Joop van der Lee Joop van der Lee

Found on cow dung.Neck with excostratum and hairs

04-08-2013 11:36

Marja Pennanen

Hello forum,remnants of Potentilla palustris leave

03-08-2013 16:04

Peter Thompson

Hello Everyone,I have found a sample of an immerse

03-08-2013 14:50

Yannick Mourgues Yannick Mourgues

I'm looking for these two documents. The first one

01-08-2013 13:56

Peter Thompson

Hello Everyone,I recently found a species of Lepto

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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