[2] Its habitat is often cooler, moist areas with a high level of cloud cover.

[5] The generic name Stereocaulon is derived from ancient Greek stereós and Latin caulis, referring to the hard stem of the central part of the lichen.

[6] The specific epithet ramulosum is derived from the Latin ramulose, and means "having many small branches".

During the extraction phase, atranorin suffer an alcoholysis reaction, producing methyl/ethyl haemmatomate and methyl ß-orcinol carboxylate.

[10] Also, in Pongo, Bolivia, Vila et al. aislate the polyol galactitol and 1,3,7-trimethylguanine, an unusual alkaloid.