When: 2008-03-11

Collection location: Edgewood Blue, Wells Gray region, British Columbia, Canada [Click for map]

Who: Jason Hollinger (jason)

Specimen available

Crust lichen, on conifer twig.
THALLUS: smooth, shiny, light to medium gray, C-, UV-
APOTHECIA: large beautiful adnate disks, thick smooth shiny rims, disk pinkish, densely white pruinose, epihymenium with POL+ white fine crystals, rim and disk C- except a few C+ yellow specks on rim, disk UV+ yellow-orange
SPORES: 4 per ascus, elliptical, thin walled, finely textured stuff inside, 47-63 × 27-35 µm (Q=1.5-1.9) (N=11), walls 0.73-3.6 µm (N=9)


Thallus, at 10×.
Apothecia, at 30×.
Apothecial section, in water, at 100×.
Apothecial section, in water, at 100x, cross-polarized.
Spore, in water, at 1000×.

Proposed Names

87% (1)
Used references: Curtis Bjork’s provisional keys to the epiphytic crusts of BC.
Based on chemical features: C- disc and rim

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= Observer’s choice
= Current consensus


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