Wilson, Paul G. (10 December 1970), A taxonomic revision of the genera Crowea, Eriostemon and Phebalium (Rutaceae). Nuytsia 1(1): 25 [tax. nov.]

• Type: Eriostemon difformis Endl.

pro parte taxonomic synonym: Eriostemon sect. Erionema F.Muell. legitimate

• Etymology: "niger = black, stipula = stipule"

Wilson, Paul G. (16 September 1998), A taxonomic review of the genera Eriostemon and Philotheca (Rutaceae: Boronieae). Nuytsia 12(2): 243 [taxonomic synonym]

taxonomic synonym of: Philotheca Rudge sect. Philotheca legitimate

Wilson, Paul G. in Wilson, A.J.G. (ed.) (2013), Philotheca. Flora of Australia 26: 368 [taxonomic synonym]

taxonomic synonym of: Philotheca Rudge sect. Philotheca legitimate

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