on shaded granitic boulders on forested slope around 3000-4000’

Several species are gray, crustose, saxicolous, K-, and microscopically similar, including A. americana (mottled brownish and gray, in deserts?), A. confusa (areoles more dispersed, I think I saw this, too, but it wasn’t fertile, in so. Cal.), A. cyanescens (epihymenium blue-green, European??), A. fumosa (epihymenium green, K+ brown, in so. Cal.).


apothecial section in water at 100x
spores in ascus in water at 1000x
anastomosing paraphyses in water at 1000x

Proposed Names

-29% (1)
Used references: Lichen Flora of the Greater Sonoran Desert Region, Vol. III. 2007. Owe-Larsson, B., A. Nordin & L. Tibell.
Based on microscopic features: 8 spores per ascus, paraphyses moniliform
Based on chemical features: all spot tests negative

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