Accès membres

Mot de passe perdu? S'inscrire

12-04-2026 17:56

Seeking genus for 1 – 3 septate spored asco. on herb Nepteta cataria (Mint).
Hardware Tony Hardware Tony

Found on dead stems in February earlier this year

12-04-2026 15:52

Anamorph on Salix
Gernot Friebes

Hi,I'm looking for help with this anamorph collect

12-04-2026 12:22

Unknown anamorph on Primula eliator
William Slosse William Slosse

In a dune grassland in Oostduinkerke (Belgium), on

11-04-2026 15:45

Article search - Octospora ithacaensis
Zuzana Sochorová (Egertová) Zuzana Sochorová (Egertová)

Please, could anyone send me this paper?Moyne G.,

11-04-2026 13:34

Requesting help with Dasyscyphella sp. ID
Artem Ptukha

Hello, I am seeking assistance with the identific

11-04-2026 10:42

Una para ID
Castillo Joseba Castillo Joseba

Me mandan el material de Galicia, España, recolec

11-04-2026 10:19

Bientôt, un nouveau livre important
Michel Hairaud Michel Hairaud

Chers amis d'Ascofrance , voici une très bonne no

11-04-2026 10:10

An important new book
Michel Hairaud Michel Hairaud

Dear Ascofrance members, here is some very good ne

10-04-2026 23:22

Pyreno on Phragmites australis
Gernot Friebes

Hi,ascospores are 1- to 3-septate, approximately 

10-04-2026 15:51

Botrytis ficariarum & Peronospora ficariae?
William Slosse William Slosse

Hello everyone, On 08/04/26, I found a growth sit

« < 1 2 3 4 5 > »
Salix pyreno puzzle
Chris Yeates, 04-04-2021 19:35
Chris Yeates
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
  • message #68218
  • message #68218
  • message #68218
  • message #68218
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
Chris Yeates, 05-04-2021 15:20
Chris Yeates
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
  • message #68229
  • message #68229
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