Observation 12942: Lecanora cenisia Ach.

Crustose lichen, on granite.
THALLUS: light gray, lumpy, thick, K+ yellow, not lobed
MEDULLA: white
ALGAE: green
APOTHECIA: lecanorine; disc medium to dark brown, some tan or yellow pruinose, flat, C-; rim thick, prominant, thalline, even; epihymenium brown, with tiny POL+ white granules or crystals; hymenium clear; hypothecium clear; aphithecium with large POL+ white crystals, slightly discontinuous algal layer, cortex thicker below
SPORE: didn’t bother


Apothecial section, in water, at 100×.
Apothecial section, in water, at 100x, cross-polarized.

Proposed Names

87% (1)
Used references: Nash’s Sonoran Flora

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Created: 2008-10-20 01:37:02 EDT (-0400)
Last modified: 2008-10-20 01:37:02 EDT (-0400)
Viewed: 24 times, last viewed: 2019-01-23 14:58:43 EST (-0500)