Homalium coriaceum Jongkind, sp. nov. (Salicaceae), a new tree species from Liberia, is described and its conservation assessment is presented. The oldest specimen of this species was in 1970 selected by Sleumer as holotype for H. littorale, but that name was never published. The new species has relatively small, almost glabrous, coriaceous leaves with hairy domatia, a branched inflorescence and velutinous disk-glands. A part of the already not very large area where the species was found is now part of the city of Monrovia. The species is considered to be Critically Endangered.