Observation 166362: Rhizocarpon geographicum group

When: 2014-06-01

Collection location: MP 14.5 E. Larch Mountain Rd., Multnomah Co., Oregon, USA [Click for map]

Who: Daniel B. Wheeler (Tuberale)

No specimen available

Crustose lichen on rock (granite?). Rock may been imported to site, as Larch Mountain is mostly basaltic andesite, a common rock in Oregon, where volcanoes are eequally common. Most of surface is yellow and greenish-yellow. Black spots scattered over surface. I should know this one: very showy for a lichen.

Proposed Names

84% (1)
Recognized by sight: need to see spores and chemistry to get to species, options include: R. geographicum s. str., R. macrosporum, R. lecanorinum, R. riparium, R. cookeanum, and probably many others(!)

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Eye3 = Observer’s choice
Eyes3 = Current consensus


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Created: 2014-06-01 22:46:53 CDT (-0500)
Last modified: 2014-06-02 20:27:32 CDT (-0500)
Viewed: 12 times, last viewed: 2017-06-18 06:37:44 CDT (-0500)
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