What is "pleuranthodium"

Pleuranthodium is a genus of plants in the ginger family. Of the 23 known species, 21 are endemic to New Guinea, one to Queensland and one to the Bismarck Archipelago.

1. Pleuranthodium biligulatum (Valeton) R.M.Sm. - New Guinea
2. Pleuranthodium branderhorstii (Valeton) R.M.Sm. - New Guinea
3. Pleuranthodium comptum (K.Schum.) R.M.Sm. - New Guinea
4. Pleuranthodium floccosum (Valeton) R.M.Sm. - New Guinea
5. Pleuranthodium floribundum (K.Schum.) R.M.Sm. - New Guinea
6. Pleuranthodium gjellerupii (Valeton) R.M.Sm. - New Guinea
7. Pleuranthodium hellwigii (K.Schum.) R.M.Sm. - New Guinea
8. Pleuranthodium iboense (Valeton) R.M.Sm. - New Guinea
9. Pleuranthodium macropycnanthum (Valeton) R.M.Sm. - New Guinea
10. Pleuranthodium neragaimae (Gilli) R.M.Sm. - New Guinea
11. Pleuranthodium papilionaceum (K.Schum.) R.M.Sm. - New Guinea
12. Pleuranthodium pedicellatum (Valeton) R.M.Sm. - New Guinea
13. Pleuranthodium peekelii (Valeton) R.M.Sm. - Bismarck Archipelago
14. Pleuranthodium pelecystylum (K.Schum.) R.M.Sm. - New Guinea
15. Pleuranthodium piundaundensis (P.Royen) R.M.Sm. - New Guinea
16. Pleuranthodium platynema (K.Schum.) R.M.Sm. - New Guinea
17. Pleuranthodium pterocarpum (K.Schum.) R.M.Sm. - New Guinea
18. Pleuranthodium racemigerum (F.Muell.) R.M.Sm. - Queensland
19. Pleuranthodium roemeri (Valeton) R.M.Sm. - New Guinea
20. Pleuranthodium schlechteri (K.Schum.) R.M.Sm. - New Guinea
21. Pleuranthodium scyphonema (K.Schum.) R.M.Sm. - New Guinea
22. Pleuranthodium tephrochlamys (K.Schum. & Lauterb.) R.M.Sm. - New Guinea
23. Pleuranthodium trichocalyx (Valeton) R.M.Sm - New Guinea