Triunia

Abstract: The name Triunia kittredgei P.M. Olde replaces Triunia robusta sensu D. Foreman (1986) following an invalid lectotypification. Triunia erythrocarpa Foreman is referred to synonymy under Triunia robusta, correctly applied. The lectotypes of T. robusta and T. montana were apparently not distributed to NSW as indicated by Sleumer (1955) and replacements are here redesignated from among the existing isolectotypes. The holotype of Triunia youngiana was not collected by Charles Moore as indicated by Moore and Mueller (1864), and Sleumer (1955) who typified the name with Moore’s collection number 4 at MEL. The evidence points to the collection Richards 4 as the holotype.

Abstract: The recent recognition of Triunia kittredgei Olde (Olde 2015) has been challenged by G.P. Guymer and P. Forster (2015) who have suggested that the name should be rejected and that the application of previous names should continue to apply in the genus Triunia L.A.S.Johnson & B.G.Briggs. They have argued that two varietal lectotypifications in Helicia youngiana C.Moore & F.Muell. by H. Sleumer (1955), varieties later recognised as species in the genus Triunia, should be overturned in favour of two later lectotypifications by D. Foreman (Foreman 1986). Their arguments are here separately examined and refuted.