Agardh, J.G. (1847), Nya alger fran Mexico. Öfversigt af Forhandligar Kongl. Svenska Vetenskaps-Akademien 4: 14 [basionym]

basionym of: Hypnea pannosa J.Agardh legitimate

Setchell, W.A. (1924), American Samoa. Part 1: the vegetation of Tutuila Island; Part 2: Ethnobotany of the Samoans; Part 3: Vegetation of Rose Atoll. Publications of the Carnegie Institution of Washington 341: 161-162, fig 30 [tax. nov.]

• Type locality: No. 1084, forming dense clumps among clusters of staghorn corals (Acropora phaeronis), Aua Reef (June 12, 1920, with tetrasporangia!).

Price, I.R. & Scott, F.J. (1992), The Turf Algal Flora of the Great Barrier Reef. Part 1 Rhodophyta: - [secondary reference]

Price, I.R. & Scott, F.J. (1992), The Turf Algal Flora of the Great Barrier Reef. Part 1 Rhodophyta: - [nomenclatural synonym]

nomenclatural synonym of: Hypnea pannosa J.Agardh legitimate

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

• Comment: Although H. nidulans is considered as a synonym of H. pannosa in Australia Silva et al (1987:50) considers the taxa separately.

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