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Physcia aipolia (Ehrh. ex Humb.) Fürnr.

Synonyms:

Family: PHYSCIACEAE

Habitat: Ubiquitous

Description

    Thallus foliose, rosette-shaped, to 10 cm diam., lobes radiating, 1-2 mm wide, upper surface conspicuously flecked (suggesting a snowy sky) due to whitish spots (pseudocyphella), isidia and soredia absent, pale greyish, pale grey-greenish, with a faint blue tinge when dry and a green tinge when moist (green when re-hydrated), lower surface whitish to pale brown, simple or branched rhizines (not to be confused with cilia when present towards the lobe margins). Apothecia usually numerous, clustered towards the center, 1-3 mm diam., disc flat at first, then convex, dark brown to black, occasionally greyish owing to pruine, exciple thick, concolourous to the thallus. Ascospres brown, ellipsoid, 1-septate, 18-24 x 7-10 µm. Pycnidia frequent. Cortex and medulla: K+ yellow.  Common on trunks and main branches of deciduous trees, rare on rocks, notably near the seashore. Not to be confused with Physcia leptalea which has numerous cilia towards lobe margins and with Physcia stellaris of which only the cortex is K+ yellow and the lobe surface is not flecked.*







Physcia aipolia Argol 1
Bernard BOUFFINIER



Physcia aipolia Argol 2
Bernard BOUFFINIER



Physcia aipolia Argol 3
Bernard BOUFFINIER



Physcia aipolia Le Passage
Alain GERAULT



Physcia aipolia et Physcia leptalea Crozon 1
Bernard BOUFFINIER



Physcia aipolia Bodvarec 1
Bernard BOUFFINIER



Physcia aipolia Brest 1
Joël QUERELLOU



Physcia aipolia et son cortège Le Fret 1
Bernard BOUFFINIER



Physcia aipolia Saint-Fiacre 1
Bernard BOUFFINIER



Physcia aipolia Plovan 1
Bernard BOUFFINIER



Physcia aipolia Plovan 2
Bernard BOUFFINIER



Physcia aipolia Le Guilvinec 1
Bernard BOUFFINIER



Physcia aipolia Le Guilvinec 2
Bernard BOUFFINIER



Physcia aipolia Le Guilvinec 3
Bernard BOUFFINIER



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