Levyns, M.R.B. (1939), Some changes in nomenclature. 1. Journal of South African Botany 5: 37 [comb. nov.]

basionym: Manulea heterophylla L.f. legitimate nomenclatural synonym: Phyllopodium heterophyllum (L.f.) Benth. legitimate

• Comment: Levyns cites this name as "Polycarena heterophylla (Benth.), nov. comb." and mentions Phyllopodium heterophyllum (L.f.) Benth. in a discussion. This is here considered to constitute an indirect reference to the basionym under ICN Art. 41.3 (Shenzhen Code, 2018).

Eichler, Hj. (1965), Supplement to J.M.Black's Flora of South Australia (Second Edition, 1943-1957): 280 [secondary reference]

Green, J.W. (1985), Census of the Vascular Plants of Western Australia Edn. 2: 150 [secondary reference]

Barker, W.R. in Jessop, J.P. & Toelken, H.R. (ed.) (1986), Scrophulariaceae. Flora of South Australia Edn. 4, 3: 1291 [secondary reference]

nomenclatural synonym: Manulea heterophylla L.f. legitimate nomenclatural synonym: Phyllopodium heterophyllum (L.f.) Benth. legitimate

Wheeler, J.R. in Marchant, N.G., Wheeler, J.R., Rye, B.L., Bennett, E.M., Lander, N.S. & Macfarlane, T.D. (1987), Scrophulariaceae. Flora of the Perth Region 2: 589 [secondary reference]

Barker, R.M. in Jessop, J.P. (ed.) (September 1993), Scrophulariaceae. A list of the vascular plants of South Australia Edn. 4: 81 [secondary reference]

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

misapplied to: Phyllopodium cordatum (Thunb.) Hilliard legitimate by Barker, W.R. in Jessop, J.P. & Toelken, H.R. (ed.) (1986), Scrophulariaceae. Flora of South Australia Edn. 4, 3: 1291

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