Clements, M.A. & Jones, D.L. (29 June 2007), A new species of Nematoceras and characterisation of N. dienemum (Orchidaceae), both from subantarctic Macquarie Island. Telopea 11(4): 406-408, Fig. 1 [tax. nov.]

• Type: Macquarie Island, 54 30S, 158 56'E, G. Copson & G. Leaman s.n., 23 Nov 1980 (HO 91827).

Backhouse, G.N. (2010), New combinations in the terrestrial orchid genera Caladenia R.Br., Corybas Salisb. and Pterostylis R.Br. (Orchidaceae) for south-eastern Australia. The Victorian Naturalist 127(2): 56 [basionym]

basionym of: Corybas sulcatus (M.A.Clem. & D.L.Jones) G.N.Backh. legitimate

Council of Heads of Australasian Herbaria (28 February 2018), Australian Plant Census: - [nomenclatural synonym]

nomenclatural synonym of: Corybas sulcatus (M.A.Clem. & D.L.Jones) G.N.Backh. legitimate

Jones, D.L. (January 2021), Native Orchids of Australia Edn. 3: 70 [secondary reference]

nomenclatural synonym: Corybas sulcatus (M.A.Clem. & D.L.Jones) G.N.Backh. legitimate common name: Grooved Helmet Orchid [n/a]

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