Bentham, G. (March 1878), Flora Australiensis 7: 379 [comb. nov.]

basionym: Chaetospora tetragona R.Br. legitimate

• Comment: Bentham and Index Kewensis refer to F.Mueller, Fragm. 9 (1875) 36, but the text therein makes no reference to Mesomelaena.

Domin, K. (1915), Beitrage zur Flora und Pflanzengeographie Australiens. Bibliotheca Botanica 20(85): 479 [secondary reference]

nomenclatural synonym: Chaetospora tetragona R.Br. legitimate nomenclatural synonym: Schoenus tetragonus (R.Br.) Poir. legitimate

Gardner, C.A. (1930), Part I. Pteridophyta-Proteaceae. Enumeratio Plantarum Australiae Occidentalis: 13 [secondary reference]

Kükenthal, G. (1940), Vorarbeiten zu einer Monographie der Rhynchosporoideae. VIII. Repertorium Specierum Novarum Regni Vegetabilis 48: 55-56 [secondary reference]

nomenclatural synonym: Chaetospora tetragona R.Br. legitimate nomenclatural synonym: Schoenus tetragonus (R.Br.) Poir. legitimate taxonomic synonym: Mesomelaena bicapitata Steud. legitimate

Wilson, K.L. (21 August 1981), Revision of the genus Mesomelaena (Cyperaceae). Telopea 2(2): 192-194 [secondary reference]

nomenclatural synonym: Chaetospora tetragona R.Br. legitimate taxonomic synonym: Mesomelaena bicapitata Steud. legitimate

Green, J.W. (1985), Census of the Vascular Plants of Western Australia Edn. 2: 42 [secondary reference]

Rye, B.L. in Marchant, N.G., Wheeler, J.R., Rye, B.L., Bennett, E.M., Lander, N.S. & Macfarlane, T.D. (1987), Cyperaceae. Flora of the Perth Region 2: 893, Fig. 313 [secondary reference]

common name: Semaphore Sedge [n/a]

Wheeler, J.R., Marchant, N.G. & Lewington, M. (2002), Flora of the South West 1: 284 [secondary reference]

common name: Semaphore Sedge [n/a]

Council of Heads of Australasian Herbaria (2012), Australian Plant Census: - APC [secondary reference]

nomenclatural synonym: Chaetospora tetragona R.Br. legitimate nomenclatural synonym: Schoenus tetragonus (R.Br.) Poir. legitimate taxonomic synonym: Mesomelaena bicapitata Steud. legitimate

• APC Comment: A.D.Chapman, Austral. Pl. Name Index 2598 (1991) stated that Poiret did not validly make the combination Schoenus tetragonus and indicated that the combination was validly made by Roemer & Schultes (Syst. Veg. 16th edn, 2: 78 (1817). However, under Article 33.1 of the 2006 (Vienna) edition of the ICBN, this name is considered to be validly published by Poiret and Roemer & Schultes' use of this name is considered to be a secondary reference.
• APC Dist.: WA

Barrett, Russell & Tay, Eng Pin (2016), Perth Plants: a Field Guide to the Bushland and Coastal Flora of Kings Park and Bold Park Edn. 2: 196-197, photos 12-14 [secondary reference]

common name: Semaphore Sedge [n/a]

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