Dendrobium rhododiodes P.Royen, Alp. Fl. New Guinea 2 (1979) 332, fig. 115.
Type: LAE (Stevens & Veldkamp) 54169 (holo CAMB; iso L).
..........................................................
Dendrobium altomontanum Gilli, Ann. Naturhist. Mus. Wien 84, B (1980 publ. 1983) 24, fig. 12.
Type: Gilli 501 (holo W).
..........................................................
Pedilonum caliculimentum (R.S.Rogers) Rauschert, Feddes Repert. 94 (1983) 458.