Vainio, E.A. (1909), Philippine Journal of Science 4: 654 [tax. nov.]

G.N.Stevens (1999), Bibliotheca Lichenologica 72: 51 [basionym]

basionym of: Usnea hossei var. squarrosa (Vain.) G.N.Stevens legitimate

P.McCarthy (Comp.) (2016), Checklist of the Lichens of Australia and its Island Territories: - [secondary reference]

P.McCarthy (Comp.) (2016), Checklist of the Lichens of Australia and its Island Territories: - [nomenclatural synonym]

nomenclatural synonym of: Usnea hossei var. squarrosa (Vain.) G.N.Stevens legitimate

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