Synonymous genera:
- Floydia L. Johnson & B. Briggs (1975)
- Helittophyllum Blume (1826)
- Triunia LA.S.Johnson & B.G. Briggs (1975)
2920942 1037594 Triunia erythrocarpa Foreman
W. Cooper, W.T. Cooper, Fruits Austral. Trop. Rainforest: p. 422, fig. 2 (2004) [W.T. Cooper]
2920952 1284631 Triunia montana (C.T.White) Foreman [0]
W. Cooper, W.T. Cooper, Fruits Austral. Trop. Rainforest: p. 422, fig. 3 (2004) [W.T. Cooper]
2914322 502793 Helicia blakei Foreman
W. Cooper, W.T. Cooper, Fruits Austral. Trop. Rainforest: p. 412 (2004) [W.T. Cooper]
4516312 502804 Helicia celata Foreman
Kew Bull., vol. 53(): : p. 673, fig. 2A,B (1998) [R. Wise]
4516302 502838 Helicia fragilis Foreman
Kew Bull., vol. 53(): : p. 671, fig. 1A-C (1998) [R. Wise]
494362 502847 Helicia grandis Hemsley
W.J. Hooker, J.D. Hooker, Icon. Pl., vol. 27 : t. 2631 (1900) [M. Smith]
1439212 502853 Helicia incisa Koord. & Valeton
S.H. Koorders, T. Valeton, Atlas Baumart. Java, vol. 3 : t. 599 (1915) [M. Mangoendimedjo & M. Joedo]
1439222 502853 Helicia incisa Koord. & Valeton
S.H. Koorders, T. Valeton, Atlas Baumart. Java, vol. 3 : t. 600 (1915) [M. Mangoendimedjo]
1439242 502864 Helicia lanceolata Koord. & Valeton
S.H. Koorders, T. Valeton, Atlas Baumart. Java, vol. 3 : t. 598 (1915) [M. Mangoendimedjo]
2920832 502885 Helicia nortoniana F.M.Bailey
W. Cooper, W.T. Cooper, Fruits Austral. Trop. Rainforest: p. 413, fig. 2 (2004) [W.T. Cooper]
2322182 502922 Helicia robusta (Roxb.) R. Br. ex Blume [80 888625 Roupala robusta Roxb.]
Fl. Males., vol. 5 : p. 185, fig. 16 (1955-1958) [R. van Crevel]
1933372 502922 Helicia robusta (Roxb.) R. Br. ex Blume [80 888625 Roupala robusta Roxb.]
R.H. Beddome, Fl. Sylv. S. India, vol. 2 : t. 301 (1874) [Govindoo]
2322172 502933 Helicia serrata Blume
Fl. Males., vol. 5 : p. 176, fig. 15 (1955-1958) [R. van Crevel]
4536042 502937 Helicia sleumeri Foreman
Kew Bull., vol. 53(): : p. 671, fig. 1D-G (1998) [R. Wise]
4516322 502957 Helicia vanroyenii Foreman
Kew Bull., vol. 53(): : p. 676, fig. 3 (1998) [R. Wise]
4536052 502959 Helicia versteeghii Foreman
Kew Bull., vol. 53(): : p. 673, fig. 2C-F (1998) [R. Wise]
44138244 502885 Helicia nortoniana species F.M.Bailey
F.M. Bailey, Compr. Cat. Queensland Pl.: p. 449, fig. 436 (1913) [C.T. White]
4631675 502922 Helicia robusta (Roxb.) R. Br. ex Blume [116 888625 Roupala robusta Roxb.]
W. Roxburgh, Icones Roxburgianae (India): t. 2426 (1780-1815)
1297105 502922 Helicia robusta (Roxb.) R. Br. ex Blume [116 888625 Roupala robusta Roxb.]
R. Wight, , Icon. Pl. Ind. Orient., vol. 1 : t. 191 (1846) [n.a.]
4613085 502922 Helicia robusta (Roxb.) R. Br. ex Blume [116 888625 Roupala robusta Roxb.]
W. Roxburgh, Icones Roxburgianae (Kew): t. 2426 (1780-1815)
1573386 502806 Helicia ceylanica Gardner
H. Trimen, Handb. Fl. Ceylon (Atlas): t. 79 (1893-1898) [G. DeAlwis]
4631686 502829 Helicia excelsa (Roxb.) Blume [125 888532 Roupala excelsa Roxb.]
W. Roxburgh, Icones Roxburgianae (India): t. 2427 (1780-1815)
1297096 502829 Helicia excelsa (Roxb.) Blume [125 888532 Roupala excelsa Roxb.]
R. Wight, , Icon. Pl. Ind. Orient., vol. 1 : t. 190 (1846) [n.a.]
4613066 502829 Helicia excelsa (Roxb.) Blume [125 888532 Roupala excelsa Roxb.]
W. Roxburgh, Icones Roxburgianae (Kew): t. 2427 (1780-1815)
2322206 502853 Helicia incisa Koord. & Valeton
Fl. Males., vol. 5 : p. 193, fig. 18 (1955-1958) [R. van Crevel]
4631666 502882 Helicia moluccana (R. Br.) Blume [125 888578 Roupala moluccana R. Br.]
W. Roxburgh, Icones Roxburgianae (India): t. 1119 (1780-1815)
4613076 502882 Helicia moluccana (R. Br.) Blume [125 888578 Roupala moluccana R. Br.]
W. Roxburgh, Icones Roxburgianae (Kew): t. 1119 (1780-1815)
1439236 502922 Helicia robusta (Roxb.) R. Br. ex Blume [125 888625 Roupala robusta Roxb.]
S.H. Koorders, T. Valeton, Atlas Baumart. Java, vol. 3 : t. 597 (1915) [M. Mangoendimedjo & M. Joedo]
3670646 502922 Helicia robusta (Roxb.) R. Br. ex Blume [125 888625 Roupala robusta Roxb.]
J.J. Bennett, T. Horsfield, R. Brown, Pl. Jav. Rar. (Bennett): t. 18 (1838-1852) [n.a.]
