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Candelariella reflexa  (Nyl.) Lettau

Synonyms:

Family: CANDELARIACEAE

Habitat: Ubiquitous

Description

    Thallus ± crustose, made of granules, 0.1-0.2 mm diam., greenish to yellow-green in the shade and yellow when lit, made also of minute squamules, 0.5-1 mm, covered often by abundant bright yellow soredia, tending to form a leprose and farinose crust. Apothecia very rare, 0.5-1 mm diam., disc plane, yellow, concolourous margin, not sorediate. Ascospores simple, ellipsoid, bi-guttulate, 10-17 x 4,5-5,5 µm. Photobiont : chloroccocoide. C-, K-, KC-, Pd-. Rather common, including in cities, on nutrient-rich barks of deciduous trees (notably Salix, Populus, etc.) towards the base of trunks (where dogs usually urinate). Candelariella xanthostigma is a very close species but its thallus displays only granules and no soredia. Also similar to some Caloplaca citrina agg. taxa, but easily determined by the K+ purple reaction. Candelaria concolor K-, is often also confused, but grows at higher levels on trunks, and has much larger and divided squamules; Xanthoria candelaria is K+ purple.*







Candelariella reflexa Roscoff 1
Bernard BOUFFINIER



Candelariella reflexa Roscoff 2
Bernard BOUFFINIER



Candelariella reflexa Roscoff 3
Bernard BOUFFINIER



Candelariella reflexa Roscoff 4
Bernard BOUFFINIER



Candelariella reflexa Roscoff 5
Bernard BOUFFINIER



Candelariella reflexa Roscoff 6
Bernard BOUFFINIER



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