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Mot de passe perdu? S'inscrire

17-09-2025 16:14

Sepultaria ?
Philippe PELLICIER

Apothécies enterrées, fermées au début puis s'

17-09-2025 10:50

Ascomycete on Polystichum proliferum
Heather Merrylees

Hi there!I am hoping for any advice on the identif

11-09-2025 16:57

Marthamycetales revision published
Jason Karakehian Jason Karakehian

Our revision of Marthamycetales (Leotiomycetes) is

16-09-2025 12:53

Encoeliopsis rhododendri
Philippe PELLICIER

Pézizes de 1-4 mm, brun grisâtres, sur les capsu

03-09-2025 12:44

Ascolichen on Blechnum?
Enrique Rubio Enrique Rubio

Hi to somebody.I would like to know your opinion o

15-09-2025 14:40

Engler & Prantl, Nat. Pflanzenfam. (Ed. 2) 1938
Nicolas VAN VOOREN Nicolas VAN VOOREN

Hello.I'm searching for a digital copy of the seco

14-09-2025 22:16

Cheilymenia stercorea
Philippe PELLICIER

Apothécies petites jusquà 3 mm, oranges, avec de

13-09-2025 14:01

Otidea platyspora or something else?
Thomas Flammer

dark brown apothecia, splitIKI-Spores biguttulate

10-09-2025 17:18

Pseudocoprotus catenipilus ???
Blasco Rafael Blasco Rafael

Hola, encontre este estiercol de vaca estos apotec

13-09-2025 14:10

Hymenoscyphus on Rubus
Wim de Groot

We found this hymenoscyphus on rubus fruticulosis.

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Gray lichen id ?
Cvenkel Miran, 28-03-2015 00:07
On rock,Slovenia, patch size of mans hand or bigger. At first I thought this is single lichen (gray), but seems, looking on screen, there are two specieses. The color of gray is reproduced OK. The black patches on gray area are randomly scatered around and are rare. Size all about the same as the ones on magnification.
  • message #34775
Cvenkel Miran, 28-03-2015 22:33
Re : Gray lichen id ?
I guess Acrocordia. Ref.:
http://www.irishlichens.ie/pages-lichen/l-303.html
Alain GARDIENNET, 29-03-2015 09:05
Alain GARDIENNET
Re : Gray lichen id ?

Hi,


Here it's impossible without microscopy. Acrocordia is easily recognizable with ascospores.


Rock is calcareous ?


Alain


 

Cvenkel Miran, 29-03-2015 13:52
Re : Gray lichen id ?
It is calcerous. It is typical karst area.
See this image
Lepista Zacarias, 29-03-2015 14:43
Re : Gray lichen id ?
I don't believe this is Acrocordia. Species in this genus have big perithecia with visible ostiole by magnification of the photo, but what we see is an arthonioid apothecia.
Best wishes,
zaca
Cvenkel Miran, 29-03-2015 15:55
Re : Gray lichen id ?
Ok will get better photos next time. Lots of gray patches this size around there.
SYLVAIN ARD, 08-04-2015 16:02
Re : Gray lichen id ?
Ca me rappelle le Verrucaria calciseda mais je ne le garantirais pas, le groupe des lichens crustacés est très difficile.