Rupp, H.M.R. (1929), Variations in Certain Orchids. Proceedings of the Linnean Society of New South Wales 54(5): 550, textfig. 1 [tax. nov.]

• Type: "Valleys of the Paterson, Williams, and Clarence Rivers: also seen from other localities unspecified."

Leaney, R.F. (1934), Dendrobiums of Australia. Orchidologia Zeylanica 1(2): 73 [basionym]

basionym of: Dendrobium x gracillimum (Rupp) Leaney legitimate

Rupp, H.M.R. (January 1944), The Orchids of New South Wales: 114 [secondary reference]

• Lectotype: "In Herb. Rupp: Paterson, Rupp 9.1929, Ideotype."

• Text: "ideotype, a specimen identified by the author as typical of his species ; used when no types were designated in the original description." [p. 147]

Rupp, H.M.R. (1945), Dendrobium gracillimum, stat. nov. The Victorian Naturalist 61: 201 [basionym]

basionym of: Dendrobium x gracillimum (Rupp) Rupp isonym

Dockrill, A.W. (1969), Australian Indigenous Orchids: 404 [nomenclatural synonym]

nomenclatural synonym of: Dendrobium x gracillimum (Rupp) Leaney legitimate

Butzin, F.R. (1982), Tropilis Raf., ein ubersehener Gattungsname bei den Orchideen. Willdenowia 12(2): 250 [basionym]

basionym of: Tropilis x gracillima (Rupp) Butzin legitimate

Rauschert, S. (1983), Beitrag zur Nomenklatur der Orchidaceae. Feddes Repertorium Beiheft 94(7-8): 470 [basionym]

basionym of: Tropilis x gracillima (Rupp) Rauschert isonym

Ross, E.M. in Stanley, T.D. & Ross, E.M. (1989), Orchidaceae. Flora of South-eastern Queensland 3: 436 [nomenclatural synonym]

nomenclatural synonym of: Dendrobium x gracillimum (Rupp) Leaney legitimate

Clements, M.A. in Jones, D.L. (ed.) (August 1989), Catalogue of Australian Orchidaceae. Australian Orchid Research 1: 53 [nomenclatural synonym]

nomenclatural synonym of: Dendrobium x gracillimum (Rupp) Leaney legitimate

Dockrill, A.W. (1993), Australian Indigenous Orchids Edn. 2, 1: 504 [nomenclatural synonym]

nomenclatural synonym of: Dendrobium x gracillimum (Rupp) Leaney legitimate

Clements, M.A. & Jones, D.L. (April 2002), Nomenclatural changes in the Dendrobieae (Orchidaceae) 1: The Australasian Region. The Orchadian 13(11): 491 [basionym]

basionym of: Thelychiton x gracillimus (Rupp) M.A.Clem. & D.L.Jones legitimate

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

nomenclatural synonym of: Dendrobium x gracillimum (Rupp) Leaney legitimate

Jones, D.L. (January 2021), Native Orchids of Australia Edn. 3: 692 [nomenclatural synonym]

nomenclatural synonym of: Thelychiton x gracillimus (Rupp) M.A.Clem. & D.L.Jones legitimate

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