The myrmecophilous species of Myristica (Myristicaceae) from New Guinea

The phenomenon of myrmecosymbiosis in Myristica, only occurring in some species from New Guinea, is reviewed here. A key to myrmecophilous taxa (and resembling species) is presented, and the status of their myrmecophily is briefly discussed. Three myrmecophytes are described as new species (M. dasycarpa, M. sarcantha, M. verruculosa), and M. subcordata var. rimosa is described as a new variety in a species liable to be confused with a myrmecophyte.