Three out of the 4 species of Endocomia nutmegs in Malesia can be found in Borneo. The seeds of Endocomia nutmegs can be distinguished from (over 100) other nutmegs by the longitudinal brown/purple markings on the smooth surface of the seed.
Endocomia virella is the only Endocomia nutmeg which ripens with a green pericarp.
References: De Wilde (2000) Tree Flora of Sabah and Sarawak , Volume 3. and De Wilde (2000) Flora Malesiana Ser. 1 Vol. 14 .