[2] It was formally described as a new species in 1829 by Antoine Laurent Apollinaire Fée, who classified it in the genus Chiodecton.

[3] In molecular phylogenetics analysis, S. farinacea appeared in a clade in a sister position to S. hawaiiensis.

In Vietnam, it was found in the Chư Yang Sin National Park, growing over tree trunks in an evergreen forest at elevations of 600–800 m (2,000–2,600 ft).

[5] In India, it was recorded in Coonoor in Tamil Nadu, whee it was found growing on the bark of Annona muricata near a tea plantation.

[6] The lichen has a creamy-white, water absorbent thallus that lacks a cortex and is 0.04–0.02 mm thick.