Protologue type data: Regio antarctica: South Orkneys, Signy Island, leg. A. G. Bennett, 1915. (Typus in herb. Mus. Brit. et fragmentum in herb. E. Frey).
Type locality: Antarctica, South Orkneys, Signy Island, 1915, A. G. Bennett (BM - holotype; Frey - isotype).