Beih. Nova Hedwigia 79: 672 (1984).

Basionym: Acolium hawaiensis Tuck., Proc. Amer. Acad. Arts 7: 232 (1867).

Type: USA, Hawaii Islands, Oahu, Waialua Mountains, Mann & Brigham s.n. (UPS, US - syntypes).

Note: There is also the variant "N. hawaiiensis"