Colenso, W. 1899 : Phænogams: A Description of a few more Newly Discovered Indigenous Plants; being a Further Contribution towards the making known the Botany of New Zealand. Transactions and Proceedings of the New Zealand Institute 31: 266-281.
Named from Latin truncatus (lopped), a reference to the blunt leaf-lamina apex, Lectotype (designated by Allan 1961): New Zealand. Ruahine Mountain-range, October 1898, H. Hill s.n. (WELT SP035538)
NZOR Concept Id
Heenan, P.B.; Smissen, R.D. 2013: Revised circumscription of Nothofagus and recognition of the segregate genera Fuscospora, Lophozonia, and Trisyngyne (Nothofagaceae). Phytotaxa 146(1): 1–31.