8 species
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Candelariella aurella
Description: Thallus almost entirely within substrate material, scattered dark yellow granules. Apothecia abundant, 0.3-1.2 mm.
Distribution: Washington; From Alaska south to Arizona and New Mexico, east to Maine in northern states; British Columbia, Alberta, Saskatchewan, Manitoba, Yukon, Northwest Territories, Nunavut;
Habitat: Exposed areas.
Substrate: Calcareous rock, or dust-impregnated bark where soil is lime-rich.
Candelariella rosulans
Description: Thallus dark egg-yolk yellow, forming tiny rosettes of squamules or convex aureoles; Apothecia 0.4-1.3 mm with raised margins.
Distribution: East of Cascades in Washington; California, Arizona, New Mexico, Utah, Colorado, Wyoming.
Habitat: Juniper/sage canyons.
Substrate: On bark, wood, soil or rock.
Candelariella terrigena
Description: Thallus bright yellow, granular to areolate. Apothecia 0.4-0.7 mm, often with discontinuous margins.
Distribution: Washington; Rocky Mountains, Alaska; Northern Canada.
Habitat: Tundra.
Substrate: Tundra soil, moss, lichen, dead vegetation.
Candelariella vitellina
Description: Thallus forming small cushions of flattened granules, sometimes with scattered yellow areoles; Apothecia 0.5-1.5 mm, crowded.
Distribution: Washington; Alaska, Oregon, California, across Rocky Mountain states and midwest, northern states to Maine; British Columbia, Alberta, Saskatchewan, Yukon, Northern Territories, Manitoba.
Habitat: In sun.
Substrate: Common on noncalcareous rock, esp. granitic rock, rarely on wood or bark.
Origin: Native