Verh. K.K. Zool.-Bot. Ges. Wien 30, Abh.: 331 (1881).

Type locality: Australia, Queensland, Rockingham Bay, J. Dallachy s.n. ex Herb. F. von Mueller (M - lectotype; MEL, NSW, REN-Abbayes - isolectotypes). Lectotypification by Archer (1986).

Chemistry: Fumarprotocetraric acid (Din et al. 1999: 3).