Abstract
Kairoa cromeana (Monimiaceae) is described from ultrabasic environments in the Momase region of Papua New Guinea. Distributional records are also reported for Cryptocarya magnifolia (Lauraceae), Gleichenia peltophora (Gleicheniaceae), Paphia megaphylla (Ericaceae), Rhysotoechia applanata (Sapindaceae), and Steganthera hentyi (Monimiaceae). Cryptocarya cordifolia is proposed as a synonym for C. magnifolia.