Jones, D.L. & French, C.J. (2017), Five new species of Plumatichilos (Orchidaceae: Pterostylidinae) from Western Australia. Australian Orchid Review 82(5): 31-33, Fig. 2 [tax. nov.]

• Type: Western Australia. Darling District, Mehinup Nature Reserve, 8 September 1997, D.L.Jones 15444 (holo CANB 647977)."

• Etymology: "The Latin precatorius, pray, entreat, in reference to the attitude of the free points of the lateral sepals."

Jones, D.L. & French, C.J. (2018), New combinations in the Pterostylidinae. Australian Orchid Review 83(1): 63 [taxonomic synonym]

taxonomic synonym of: Pterostylis precatoria D.L.Jones & C.J.French nom. inval.

Jones, D.L. & French, C.J. (2018), New combinations in the Pterostylidinae. Australian Orchid Review 83(4): 55 [basionym]

basionym of: Pterostylis precatoria (D.L.Jones, C.J.French & M.A.Clem.) D.L.Jones & C.J.French legitimate

Jones, D.L. (January 2021), Native Orchids of Australia Edn. 3: 591 [secondary reference]

nomenclatural synonym: Pterostylis precatoria (D.L.Jones, C.J.French & M.A.Clem.) D.L.Jones & C.J.French legitimate common name: Mehinup Bird Orchid [n/a]

Council of Heads of Australasian Herbaria (7 July 2021), Australian Plant Census: - [nomenclatural synonym]

nomenclatural synonym of: Pterostylis precatoria (D.L.Jones, C.J.French & M.A.Clem.) D.L.Jones & C.J.French legitimate

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