J. Linn. Soc. Bot. 9: 244 (1867) ["1826"].

Basionym: Cenomyce pycnoclada Pers. in Gaudichaud, Voy. Uranie, Bot.: 212 (1828) ["1826"].

Type locality: Falkland Islands, East Falkland, Port Louis, 1817-1820, C. Gaudichaud 134 (G - lectotype). Lectotypified by Ahti (1961).