04-04-2021 19:35
Chris Yeates
I collected this fungus recently on a partially co
04-04-2021 19:35
William de JongHi, a few days ago I found this fungi on a bunch o
05-04-2021 21:52
Yannick Mourgues
Trouvé sur bois de pin sylvestre décortiqué au
05-04-2021 09:51
Viktorie Halasu
Hello,I'm looking for Clemencon H. (1972): Zwei v
01-04-2021 00:18
Garcia SusanaHola, Mando este ascomycete que crecía sobre mad
03-04-2021 16:33
M Jonathan
HiHere is an unidentified species producing small
02-04-2021 17:52
Malcolm Greaves
Can someone point me to the likely genus of this s
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