Observation 21286: Ramalina americana Hale

Locality: at a road cut near Clingman’s Dome, a few meters E of the TN-NC border

Substrate and Habitat: ancient metamorphosed sedimentary rock pushed up during the Appalachian orogeny and exposed at a road cut near the top of Clingman’s Dome; surrounding vegetation is spruce-fir forest on a wet montane ridge

Identification: This is a fertile, nonsorediate Ramalina, so it is either R. americana or R. culbersoniorum. The two species are virtually identical morphologically, but are distinguishable with TLC. R. americana is widespread and common, but R. culbersoniorum is only infrequently identified. For instance, at this point, CNALH list 781 locality records for R. americana, but only 22 locality records for R. culbersoniorum, so I associate this photo with Ramalina americana for the time being.

[admin – Sat Aug 14 01:59:30 +0000 2010]: Changed location name from ‘Clingman’s Dome, Great Smoky Mountains NP, North Carolina, USA’ to ’Clingman’s Dome, Great Smoky Mountains National Park, North Carolina, USA’

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Proposed Names

28% (1)
Recognized by sight
56% (1)
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Used references: Hinds and Hinds, 2005, pp.435-443

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Created: 2009-05-24 13:52:45 PDT (-0700)
Last modified: 2010-08-13 21:17:08 PDT (-0700)
Viewed: 204 times, last viewed: 2017-11-21 16:19:30 PST (-0800)
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