Shaw, J.M.H. in Royal Horticultural Society (2014), Quarterly Supplement to the International Register of Orchid Hybrids (Sander's List) 122(1306): 39 [comb. nov.]

basionym: Eucosia umbrosa D.L.Jones & M.A.Clem. legitimate

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

nomenclatural synonym of: Eucosia umbrosa D.L.Jones & M.A.Clem. legitimate

Pace, M.C. (10 July 2020), A recircumscription of Goodyera (Orchidaceae), including the description of Paorchis gen. nov., and resurrection of Cionisaccus, Eucosia, and Salacistis. Brittonia 72(3): 264 [nomenclatural synonym]

nomenclatural synonym of: Eucosia umbrosa D.L.Jones & M.A.Clem. legitimate

---