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

basionym: Dendrobium speciosum var. gracillimum Rupp 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

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

orthographic variant: Tropilus x gracillima Dockrill orth. var. isonym: Tropilis x gracillima (Rupp) Rauschert isonym

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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