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23-12-2025 11:27

blanc poilu
Louis DENY

bonjour forum,sur débris de bois (ou peut-être p

23-12-2025 08:27

Hymenoscyphus?
Josep Torres Josep Torres

Hello.Small, yellowish ascomata, with very short a

21-12-2025 09:32

Spherical Pyrenomycete
Josep Torres Josep Torres

Hello.A tiny ascomycete found embedded in wood in

21-12-2025 21:32

Anamorf on decaying leaves of Euonymus japonicus 'Microphyllus'
Pol Debaenst

Hello, Garden, Burgweg 19, Veurne, BelgiumOn 10/1

22-12-2025 23:38

Phylloscypha labessiana ?
Patrice TANCHAUD

Bonsoir, récolte sur un mur en pierre, apothéci

21-12-2025 12:34

Nectria ??
Castillo Joseba Castillo Joseba

me mandan el material seco de Galicia (España) 

22-12-2025 00:47

Phylloscypha boltonii
Patrice TANCHAUD

Bonsoir, récolte à proximité du milieu dunaire

21-12-2025 21:40

recherche de références biblio
Isabelle Charissou

Bonjour, j'aimerais connaitre les références de

20-12-2025 23:08

Malvipezia pauli !
Patrice TANCHAUD

Bonsoir, récolte sur sol sablonneux dans l'arriÃ

21-12-2025 01:54

Ophiostoma
David Chapados David Chapados

Hi,Would it be possible to find the species with t

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Small green discs on Ammophila
Marc Detollenaere, 24-03-2023 22:04
Marc DetollenaereDear Forum,

On dead leaves of Ammophila arenaria I found some very small yellow-green discs (100-125µ) with a strong amyloid reaction on IKI. Asci measured 30x12µ and the hyaline spores were 1-septate and contained several small guttules. The paraphyses were multiple septate and capitate.
Any ideas?
Many thanks

Marc
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Hans-Otto Baral, 24-03-2023 22:25
Hans-Otto Baral
Re : Small green discs on Ammophila
Some Lecanorales, perhaps it is lichenized?
Zdenek Palice, 24-03-2023 22:58
Zdenek Palice
Re : Small green discs on Ammophila
Yes it looks to be lichenized. 
Likely a species of the genus Lecania (Ramalinaceae, Lecanorales)

Zdenek
Marc Detollenaere, 25-03-2023 00:05
Marc Detollenaere
Re : Small green discs on Ammophila
Thank you for your reply.I'll try to find a key of Lecania and related genera.
Anthony Carter, 02-04-2023 11:02
Re : Small green discs on Ammophila
I found this on Ammophila in 2017 at Ainsdale, near Liverpool. I consulted my lichen expert at The Liverpool Museum who promoted Lecania cyrtella.

Another colleague has found it in Argyll Scotland also on Ammophila.

Anthony Carter
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Marc Detollenaere, 03-04-2023 21:49
Marc Detollenaere
Re : Small green discs on Ammophila
Thank you very much Anthony
Anthony Carter, 04-04-2023 13:40
Re : Small green discs on Ammophila
A bit more information to support the identification.


My notes and pics were sent to Brian Coppins, Senior Lichenologist at Edinburg Royal Botanic Gardens. His response was -

Yes, I'd be happy to call this Lecania cyrtella. There are several otherwise mainly corticolous lichens that can find their way onto grasses, esp. Bacidina species. They need a keen eye to spot and happenchance of being in the right place at the right time and in decent weather conditions to be able to 'screen' such a habitat. Also, being aware that such a habitat niche can exist!