Please do not re-click a link while waiting for a page to load. (It’s slower and degrades site speed for all users.)
To get images for machine learning, see MO Images for Machine Learning

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

Please login to propose your own names and vote on existing names.

= Observer’s choice
= Current consensus


Add Comment
No one has commented yet.