28-04-2026 20:07
Lothar Krieglsteiner
... on twig in the air at standing Ceratonia siliq
11-05-2026 12:32
Bernard CLESSE
Pourriez-vous m'aider à identifier cette héloti
29-04-2026 10:44
Lothar Krieglsteiner
growing at moist, drying-out soil at the side of a
05-04-2026 22:46
Lothar Krieglsteiner
on wood of Ceratonia, Algarve, 3.4.2026.The color
10-05-2026 16:18
brigitte vignotbonjour trouvée en Ariège sur bois une petite
10-05-2026 23:17
Andreas Gminder
Hello,today we found in a moist steep decidous for
27-04-2026 17:16
Lothar Krieglsteiner
.. Algarve, moist lying.The conidiomata look like
10-05-2026 09:02
Buckwheat PeteHello everybody, ould this be Lachnum subvirgineu
Nectria on Salix
Jenny Seawright,
02-04-2015 22:41
Hello all, I found a patch of Nectria on a living branch of Salix cinerea in damp woodland - perithecia yellow becoming orange and then red, slightly darker at the apices, the surfaces appearing rough but not strongly warted. Spores were hyaline, 1-septate, (15)17-20 x 7µm.
Using Ellis & Ellis Nectria veuillotiana seemed a good possibilty until I compared the perithecia with those shown here:
http://www.ascofrance.fr/search_recolte/2149
Once again assistance appreciated!
With regards,
Jenny
Christian Lechat,
03-04-2015 06:42
Re : Nectria on Salix
Hi Jenny,
Are the ascospores ornamented or smooth?
Your fungus fits better Thelonectria discophora.
Best wishes,
Christian
Are the ascospores ornamented or smooth?
Your fungus fits better Thelonectria discophora.
Best wishes,
Christian
Jenny Seawright,
03-04-2015 23:44
Re : Nectria on Salix
Hi Christian - my first reply disappeared so this is the next attempt!
Thank you - the texture and apices of the AscoFrance images of Thelonectria discophora correspond perfectly with what I was seeing down the microscope.
"Are the ascospores ornamented or smooth"
I wasn't quite sure what I should be looking for but have added some images in Cotton Blue.
Attempted images of a perithecia section - fortunately someone has kindly offered to do a 'proper' section for me......
With regards,
Jenny
Thank you - the texture and apices of the AscoFrance images of Thelonectria discophora correspond perfectly with what I was seeing down the microscope.
"Are the ascospores ornamented or smooth"
I wasn't quite sure what I should be looking for but have added some images in Cotton Blue.
Attempted images of a perithecia section - fortunately someone has kindly offered to do a 'proper' section for me......
With regards,
Jenny
Christian Lechat,
04-04-2015 06:03
Re : Nectria on Salix
Jenny,
your image (from left) suggests that the ascospores observed in water are spinulose. This characteristic fits well to T. discophora.
Best gegards,
Christian
your image (from left) suggests that the ascospores observed in water are spinulose. This characteristic fits well to T. discophora.
Best gegards,
Christian
Jenny Seawright,
04-04-2015 09:53
Re : Nectria on Salix
Thank you very much Christian
Jenny
Jenny