14-11-2025 16:26
Marian Jagers
Hello everyone, On dead wood of Cytisus scoparius
17-11-2025 21:46
Philippe PELLICIERBonjour,Récolté sur bois pourrissant de feuillu
20-11-2025 14:14
Mick PeerdemanFound on the leaves of 'Juglans regia' in the Neth
20-11-2025 13:07
Mick PeerdemanIn January i found these black markings on the dea
20-11-2025 12:38
Mick PeerdemanDear all,Last week i stumbled upon a leaf of ilex
19-11-2025 23:21
carl van den broeck
Dear guestIn Waardamme, Belgium, I found dozens of
19-11-2025 20:51
Andreas Millinger
Good evening,found this species on a felled trunk
19-11-2025 13:04
Bruno Coué
Bonjour,je sollicite votre avis pour la récote
Salix pyreno puzzle
Chris Yeates,
04-04-2021 19:35
I collected this fungus recently on a partially corticated narrow (16mm diameter) fallen branch of sallow Salix caprea/cinerea. There is a superficial resemblance to the fungus now known as Menispora glauca (= Chaetosphaeria ovoidea = Zignoella ovoidea) but it differs in that:
it was only present on the bark (growth rather superficial, not penetrating the bark fully, and not on adjacent decorticated areas
the shape of the perithecia was flattened hemispherical, with no hint of a beak/papilla
abundant interascal ?paraphyses
spores smaller (12.9)15.2-19.5(20.5) x 4-5.2µm, shape varying from ellipsoid to fusoid, filling the asci, full of droplets, becoming 3-septate
Any suggestions welcome
Amitiés, Chris
Nick Aplin,
05-04-2021 01:00
Re : Salix pyreno puzzle
Salut Chris,
I wonder whether you have Porina aenea? - I think I can see an olivaceous thallus on the substrate....
Cheers,
Nick
I wonder whether you have Porina aenea? - I think I can see an olivaceous thallus on the substrate....
Cheers,
Nick
Chris Yeates,
05-04-2021 15:20
Re : Salix pyreno puzzle
Nick - Je pense que tu as "mis le doigt dessus" as our French friends would say. I had foolishly set aside thought that it might be lichenised because I could see no green algal cells. However, a good spray of water and the colour gives it away - I can see where "aenea" comes from now. Plus, under the microscope orange cells of the Trentepohlia photobiont are obvious.
This short piece of Salix, is yielding up several interesting things - I am now locking antlers with a Capronia . . .
Thanks for taking the time, what with the excellent work you have clearly been doing recently in that lovely county:
Cordialement, Chris
Nick Aplin,
06-04-2021 16:21
Re : Salix pyreno puzzle
Hi Chris,
This lichen catches me out at least once every year - It seems that the photobiont can be pretty well camouflaged and it can grow in all sorts of unexpected places.
Glad you liked our Spring Fungus Project too - Porina aena cropped up several times in attempt to confuse us!
Amitiés,
Nick
This lichen catches me out at least once every year - It seems that the photobiont can be pretty well camouflaged and it can grow in all sorts of unexpected places.
Glad you liked our Spring Fungus Project too - Porina aena cropped up several times in attempt to confuse us!
Amitiés,
Nick