Agardh, J.G. (1894), Analecta algologica. Cont. I. Acta Universitatis Lundensis. Lunds Universitets Års-skrift. Andra Afdelningen. Kongliga Fysiografiska Sällskapets Handligar 29: 107 [tax. nov.]

• Type locality: Hab ad oras Novae Caledoniae; specimen mihi misit J. E. Gray.

Lewis, J.A. (1987), Checklist and bibliography of benthic marine macroalgae from Northern Australia. III. Chlorophyta: - [secondary reference]

Lewis, J.A. (1987), Checklist and bibliography of benthic marine macroalgae from Northern Australia. III. Chlorophyta: - [misapplied]

misapplied to: Microdictyon umbilicatum (Velley) Zanardini legitimate by Agardh, J.G. (1894), Analecta algologica. Cont. I. Acta Universitatis Lundensis. Lunds Universitets Års-skrift. Andra Afdelningen. Kongliga Fysiografiska Sällskapets Handligar 29: 107

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

• Comment: Type material is illustrated in Setchell 1929 Univ Calif Publ Bot 14: fig 28. Kraft 2000 Aust Syst Bot 13:572 indicates that M. obscurum does not occur in Australia.
• AMANI dist.: Queensland (Great Barrier Reef). World: Samoa.

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