Mueller, F.J.H. von (1882), Systematic Census of Australian Plants: 60 [nom. nov.]

replaced synonym: Trymalium billardierei Fenzl nom. illeg., nom. superfl.

• Comment: nom. illeg., nom. superfl. as Trymalium billardierei Fenzl is itself a superfluous replacement name for Ceanothus spatulatus Labill. The epithet spatulata was available in Cryptandra was available in 1882 and thus ought to have been adopted by Mueller (ICN Art. 11.4 (Shenzhen Code, 2018)).

Rye, B.L. (31 July 1996), A synopsis of the genera Pomaderris, Siegfriedia, Spyridium and Trymalium (Rhamnaceae) in Western Australia. Nuytsia 11(1): 130 [nomenclatural synonym]

nomenclatural synonym of: Trymalium spatulatum (Labill.) G.Don legitimate

Kellermann, J., Rye, B.L. & Thiele, K.R. (2008), Nomenclatural notes, typifications and name changes in Trymalium (Rhamnaceae: Pomaderreae). Transactions of the Royal Society of South Australia 132(1): 24 [nomenclatural synonym]

nomenclatural synonym of: Trymalium spatulatum (Labill.) G.Don legitimate

Council of Heads of Australasian Herbaria (2011), Australian Plant Census: - [secondary reference]

orthographic variant: Cryptandra billardieri F.Muell. orth. var.

Council of Heads of Australasian Herbaria (2011), Australian Plant Census: - [nomenclatural synonym]

nomenclatural synonym of: Trymalium spatulatum (Labill.) G.Don legitimate

Kellermann, J. (7 April 2021), The importance of the ‘h’ – Parahomonymy in Trymalium (Rhamnaceae: Pomaderreae). Swainsona 35: 26 [nomenclatural synonym]

nomenclatural synonym of: Trymalium spatulatum (Labill.) G.Don legitimate

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