When: 2008-06-08

Collection location: Plateau above Echo Cliffs, Coconino Co., Arizona, USA [Click for map]

Who: Jason Hollinger (jason)

Specimen available

crust lichen, on soil/moss, in shelter of sandstone boulder
THALLUS: squamulose, squamules strongly convex, not to very densely white farinose pruinose, olive green but blackened in some areas, cracked in many places, cortex quite thick
MEDULLA: white
ALGAE: green, in continuous layer under cortex
APOTHECIA: lecideine, black, plane, margin raised at least when young; epihymenium dark gray, K+ violet, POL-; hymenium clear, K-; hypothecium brown; exciple full of inflated gelatinous cells encased in brown pigment with weakly K+ violet gray pigment on surface; paraphyses branched, inflated tips, clear, smooth, rather thick
SPORES: 8 per ascus, acicular to comet-shaped, 15-25 × 3-4 µm, clear, many little bubbles making it impossible to determine number of septae

Outwardly similar to Toninia tristis, however this is pruinose and greenish instead of brown.


magnification 10x
magnification 30x
magnification 30x
apothecial section in water at 400x

Proposed Names

58% (1)
Used references: Nash’s Sonoran Flora

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Created: 2008-09-12 22:21:35 PDT (-0700)
Last modified: 2008-09-12 22:21:35 PDT (-0700)
Viewed: 29 times, last viewed: 2019-01-23 00:28:34 PST (-0800)