29-11-2024 21:47
Yanick BOULANGERBonjourJ'avais un deuxième échantillon moins mat
07-02-2023 22:28
Ethan CrensonHello friends, On Sunday, in the southern part of
19-02-2026 17:49
Salvador Emilio JoseHola buenas tardes!! Necesito ayuda para la ident
19-02-2026 13:50
Margot en Geert VullingsWe found this collection on deciduous wood on 7-2-
16-02-2026 21:25
Andreas Millinger
Good evening,failed to find an idea for this fungu
08-12-2025 17:37
Lothar Krieglsteiner
20.6.25, on branch of Abies infected and thickened
17-02-2026 17:26
Nicolas Suberbielle
Bonjour à tous, Je recherche cette publication :
Asco on stromata of Rhytisma salicinum
Enrique Rubio,
05-08-2013 20:01
Hello againThis 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
Hans-Otto Baral,
05-08-2013 21:45
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
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
Re : Asco on stromata of Rhytisma salicinum
Thanks Zotto
Do you know where Huhtinen descibed the Ciborinia on Salix leaves?
Do you know where Huhtinen descibed the Ciborinia on Salix leaves?
Hans-Otto Baral,
05-08-2013 22:10
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Enrique Rubio,
05-08-2013 22:28
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.
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
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
Re : Asco on stromata of Rhytisma salicinum
Yes. You are right. It's very possible