Hooker, J.D. & Harvey, W.H. (1845), Algae Antarcticae. London Journal of Botany 4: 273 [tax. nov.]

• Type locality: Cape Horn.

Sonder, O.W. (1853), Plantae Muellerianae: Algae. Linnaea 25: 673 [secondary reference]

Brauner, J.F. (1979), Developmental morphology and taxonomy of Medeiothamnion flaccidum (Hooker & harvey) comb. nov. (Ceramiaceae, Rhodophyta) from South america. Phycologia 18: 339 [basionym]

basionym of: Medeiothamnion flaccidum (Hook.f. & Harv.) Brauner legitimate

Ricker, R.W. (1987), Taxonomy and Biogeography of Macquarie Island Seaweeds: - [nomenclatural synonym]

nomenclatural synonym of: Medeiothamnion flaccidum (Hook.f. & Harv.) Brauner legitimate

Womersley, H.B.S. (1998), The Marine Benthic Flora of Southern Australia. Part IIIC: - [secondary reference]

Womersley, H.B.S. (1998), The Marine Benthic Flora of Southern Australia. Part IIIC: - [misapplied]

misapplied to: Medeiothamnion lyallii (Harv.) Gordon-Mills legitimate by Sonder, O.W. (1853), Plantae Muellerianae: Algae. Linnaea 25: 673

ABRS (2011), Australian Algal Name Index Edn. 2011: - [secondary reference]

• Type specimen: LECTOTYPE: Natural History Museum London: [Accession No. unknown]

---