What is "physokentia"

Physokentia is a genus of flowering plant in the palm family, native to certain islands of the western Pacific. It contains the following species:

1. Physokentia avia H.E.Moore - Bismarck Archipelago
2. Physokentia dennisii H.E.Moore - Solomon Islands
3. Physokentia insolita H.E.Moore - Solomon Islands
4. Physokentia petiolata (Burret) D.Fuller - Fiji
5. Physokentia tete (Becc.) Becc. - Vanuatu
6. Physokentia thurstonii (Becc.) Becc. - Vanuatu
7. Physokentia whitmorei H.E.Moore - Solomon Islands