Homotypic Synonyms See Note

Basionym Name:
Platysma thomsonii Stirt., Proc. Roy. phil. Soc. Glasgow 11: 321 (1879)

Homotypic synonyms:
Cetraria thomsonii (Stirt.) Müll. Arg., [as 'thomsoni'] Flora, Regensburg 74(3): 373 (1891)
Parmelaria thomsonii (Stirt.) D.D. Awasthi, [as 'thompsonii'] J. Hattori bot. Lab. 63: 368 (1987)
Parmelia thomsonii (Stirt.) W.L. Culb., Bryologist 65: 360 (1963)
Parmelia thomsonii var. thomsonii (Stirt.) W.L. Culb., Bryologist 65: 360 (1963)
Parmotrema thomsonii (Stirt.) A. Crespo, Divakar & Elix, in Crespo et al., Taxon 59(6): 1746 (2010)