Loudon, J.C. (1832), Loudon's Hortus Britannicus Edn. 2, 1: 585 [tax. nov.]

• Type: (not designated).

• Comment: Description very brief. See expanded description by Putterlick, Syn. Pittosporearum (1839) 4; R.Bakker & C.G.G.J. van Steenis, Fl. Males. ser. I, 5 (1957) 361–362 do not accept Loudon's description as adequate, and state that the genus should date from Putterlick's description of 1839. Index Nominum Genericorum 1 (1979) 374, seems to have accepted this view, however, brief as it is, a description is given by Loudon.

Bentham, G. (30 May 1863), Flora Australiensis 1: 121-122 [secondary reference]

Mueller, F.J.H. von (1882), Systematic Census of Australian Plants: 7 [secondary reference]

taxonomic synonym: Ixiosporum F.Muell. legitimate

Mueller, F.J.H. von (December 1889), Second Systematic Census of Australian Plants: 12 [secondary reference]

taxonomic synonym: Ixiosporum F.Muell. legitimate

Dixon, W.A. (1906), The Plants of New South Wales: 40, 292 [secondary reference]

common name: Orange thorn [n/a]

Bailey, F.M. (1913), Comprehensive Catalogue of Queensland Plants: 43 [secondary reference]

Sulman, F. (1914), A Popular Guide to the Wild Flowers of New South Wales II: 22-23 [secondary reference]

common name: Orange Thorn [n/a]

• Etymology: From the Greek citros (a citron) and batos (a thorn).

Bakker, K. & Steenis, C.G.G.J. van (March 1957), Pittosporaceae. Flora Malesiana Series I 5(3): 360-361 [secondary reference]

Beadle, N.C.W., Evans, O.D. & Carolin, R.C. (1962), Handbook of the Vascular Plants of the Sydney District and Blue Mountains: 198 [secondary reference]

Jacobs, S.W.L. & Pickard, J. (1981), Plants of New South Wales: 174 [secondary reference]

Koch, B.L. in Wheeler, J.R. (ed.) (1992), Pittosporaceae. Flora of the Kimberley Region: 277 [secondary reference]

Makinson, R.O. in Harden, G.J. (ed.) (1992), Pittosporaceae. Flora of New South Wales 3: 73 [secondary reference]

Cayzer, L.W., Crisp, M.D. & Telford, I.R.H. (15 December 2000), Revision of Pittosporum (Pittosporaceae) in Australia. Australian Systematic Botany 13(6): 861 [taxonomic synonym]

taxonomic synonym of: Pittosporum Banks ex Gaertn. nom. cons.

Cooper, W.E. & Cooper, W.T. (2004), Fruits of the Australian Tropical Rainforest: 401 [secondary reference]

Council of Heads of Australasian Herbaria (2007), Australian Plant Census: - [secondary reference]

orthographic variant: Citriobathus A.Cunn. ex Juss. orth. var.

Council of Heads of Australasian Herbaria (2007), Australian Plant Census: - [taxonomic synonym]

taxonomic synonym of: Pittosporum Banks ex Gaertn. nom. cons.

Cayzer, L.W., Utteridge, T.M.A., & Chandler, G.T. (27 July 2023), Pittosporum (Pittosporaceae) in Malesia and Papuasia. Australian Systematic Botany 36(3): 220 [taxonomic synonym]

taxonomic synonym of: Pittosporum Banks ex Gaertn. nom. cons.

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