Plagiochila tristaniana Váňa et J.J.Engel,

Mem. New York Bot. Gard. 105: 89, 2013 (see Váňa & Engel 2013). NOM. NOV. PRO Plagiochila fragilifolia S.W.Arnell, Results Norweg. Sci. Exped. Tristan da Cunha 42: 25, 1958, nom. illeg. ICN Art. 53.1; hom. illeg. [non Pearson 1922] (see Arnell 1958a).