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28-04-2026 22:51

Hyaloscypha sur grosse branche morte de hêtre
Bernard CLESSE Bernard CLESSE

Bonsoir à toutes et tous,Pourriez-vous m'aider à

28-04-2026 21:53

Entyloma?
William Slosse William Slosse

Good evening everyone, Recently, in a wet forest,

28-04-2026 21:50

Hongo briófilo sobre Telaranea en Patagonia Chilena
Pablo Sandoval Pablo Sandoval

Hola a todos,Espero se encuentren bien. Hace mucho

27-04-2026 18:05

bright green minute anamorph on Citrus aurantius-twig from Portugal
Lothar Krieglsteiner Lothar Krieglsteiner

... still attached at standing tree. The green con

28-04-2026 20:33

Parasite on Trochila ilicina?
Vitus Schäfftlein

Hello, I found Trochila ilicina on Ilex aquifoliu

28-04-2026 20:07

Martjhamycetales? - from Portugal
Lothar Krieglsteiner Lothar Krieglsteiner

... on twig in the air at standing Ceratonia siliq

27-04-2026 20:52

Mollisia or related genus from Portugal - with quite peculiar character
Lothar Krieglsteiner Lothar Krieglsteiner

Found on hanging tiwg of Olea europaea in dried-ou

27-04-2026 18:48

Micropodia pteridina?
Tony Moverley

Collected 23rd April 2026, Norfolk, EnglandSwarms

27-04-2026 17:41

another anamorph on monocotyleous remains from Portugal
Lothar Krieglsteiner Lothar Krieglsteiner

.. Algarve, same leaf than the last post. The con

27-04-2026 17:16

anamorph on monocotyleous leaves from Portugal
Lothar Krieglsteiner Lothar Krieglsteiner

.. Algarve, moist lying.The conidiomata look like

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Blue stone lichen id ?
Cvenkel Miran, 28-03-2015 22:50
Attached image - sorry ascofrance automaticaly downsizes uplodaed image, otherwise it was full size.. As you see fruiting bodies appears on stone with 'no background thalus coloration' or background coloration is not that obvious.. But look at top left side  - bluish color on stone.

The combination of bluish thalus & fruiting bodies: photo All from same location, same date, Slovenia.


  • message #34791
Lepista Zacarias, 28-03-2015 23:13
Re : Blue stone lichen id ?
Here I (only) suspect that this could be a Caloplaca, like C. albopruinosa, which has an endolithic thallus and blue pruinose apothecia with white margins; There are some other Caloplaca with somewhat similar apothecia, but the thallus is not endolithic, like C. chalybaea and C. variabilis.
Hope this can help,
zaca
Cvenkel Miran, 29-03-2015 00:06
Re : Blue stone lichen id ?
Thanks. Seems right. Depending on angle of lightting the apothecia color can seem to be black instead of blue. Sample: http://dbiodbs.univ.trieste.it/italic/italic42?specie=275&us=admin