Plagiochila nova Steph., Sp. Hepat. 6: 189. 1921, syn. nov.

Lectotypus (designated here): ECUADOR. Prov. Morona Santiago: Bomboiza, “frequens ad terram et ad truncos putrescentes in Granadillas”, 2500 m, 15.XI.1910, Allioni 709 (G [G000061534]!) .

= Plagiochila montagnei Nees

Notes. – Plagiochila montagnei is a common neotropical rainforest species that is recognized by terminal branching and ovate-lingulate leaves with a longly decurrent dorsal base, toothed ventral and apical margins, and strongly ampliate ventral bases with triangular teeth (HEINRICHS & GRADSTEIN, 2000). The species is common in lowland forests and is only occasionally seen in montane forests. The specimen Allioni 709 is chosen here as the lectotype of P.nova as it was illustrated in STEPHANI (1985: tab. 11214). A further syntype (Bomboiza, “frequens ad truncos in silva M. Sapotilla prope domum bonbori”, 1000 m, 21.X.1910, Allioni 651, G [G00113038]!) belongs to P. macrostachya Lindenb .