Hypogymniaceae Poelt ex Elix
Hypogymnia billardierei (Mont.) Filson , legitimate, scientific
Filson, R.B. (1970), Studies in Australian Lichens - 1. The Victorian Naturalist 87: 325 [comb. nov.]
basionym: Cetraria billardierei Mont. legitimate
Elix, J.A. in George, A.S. (ed.) (1992), Hypogymnia in Hypogymniaceae. Flora of Australia 54: 204, Figs. 39D, 50A, Map 152 [secondary reference]
nomenclatural synonym: Cetraria billardierei Mont. legitimate nomenclatural synonym: Parmelia billardierei (Mont.) Zahlbr. legitimate taxonomic synonym: Parmelia conferta Taylor legitimate taxonomic synonym: Parmelia placorhodioides Nyl. legitimate taxonomic synonym: Parmelia physodes var. placorhodioides Müll.Arg. legitimate taxonomic synonym: Parmelia physodes var. leucina Müll.Arg. legitimate