Taxonomic notes on the New Zealand moss flora: a new combination and a new species in the genus Tridontium (Pottiaceae)

A new combination Tridontium cockaynei J.E.Beever, Fife & J.A.Jiménez is made, and a new species Tridontium milleneri J.E.Beever, Fife & J.A.Jiménez is described. The name T. cockaynei, first published as Trichostomum cockaynei R.Br.bis (1897), has priority over Weissia weymouthii R.Br.bis (1899), the basionym of Tridontium weymouthii (R.Br.bis) J.A.Jiménez & M.J.Cano (2021). Tridontium milleneri is described and named in honour of Prof. L.H. Millener. This article is a contribution towards clarifying the taxonomic and nomenclatural status of New Zealand plants for the Plant Names Database (Ngā Tipu Aotearoa) and the electronic Flora of New Zealand.