1. Species Hypnea arenaria Kylin, 1938
2. Species Hypnea bryoides Børgesen, 1943
3. Species Hypnea cenomyce J.Agardh, 1851
4. Species Hypnea ceramioides Kützing, 1849
5. Species Hypnea cervicornis J.Agardh, 1851
6. Species Hypnea charoides J.V.Lamouroux, 1813
7. Species Hypnea chordacea Kützing, 1847
8. Species Hypnea compressa Papenfuss, 1947
9. Species Hypnea congesta Papenfuss, 1947
10. Species Hypnea cornuta (Kützing) J.Agardh, 1851
11. Species Hypnea divaricata (C.Agardh) Greville, 1830
12. Species Hypnea ecklonii Suhr, 1836
13. Species Hypnea esperi Bory de Saint-Vincent, 1828
14. Species Hypnea fruticulosa Kützing, 1849
15. Species Hypnea hamulosa (Esper) J.V.Lamouroux, 1813
16. Species Hypnea intricata Kylin, 1938
17. Species Hypnea musciformis (Wulfen) J.V.Lamouroux, 1813
18. Species Hypnea nidifica J.Agardh, 1852
19. Species Hypnea nidulans Setchell, 1924
20. Species Hypnea nigrescens Greville ex J.Agardh, 1851
21. Species Hypnea pannosa J.Agardh, 1847
22. Species Hypnea pectinella Børgesen, 1954
23. Species Hypnea reptans Papenfuss, 1947
24. Species Hypnea rosea Papenfuss, 1947
25. Species Hypnea spicifera (Suhr) Harvey, 1847
26. Species Hypnea spinella (C.Agardh) Kützing, 1847
27. Species Hypnea tenuis Kylin, 1938
28. Species Hypnea valentiae (Turner) Montagne, 1841
29. Species Hypnea viridis Papenfuss, 1947
30. Species Hypnea aspera Kützing, 1868 accepted as Hypnea cervicornis J.Agardh, 1851
31. Species Hypnea boergesenii T.Tanaka, 1941 accepted as Hypnea cervicornis J.Agardh, 1851
32. Species Hypnea bourgesenii T. Tonaka accepted as Hypnea boergesenii T.Tanaka, 1941 accepted as Hypnea cervicornis J.Agardh, 1851 (misspelling)
33. Species Hypnea esperii Suhr accepted as Hypnea esperi Bory de Saint-Vincent, 1828 (misspelling)
34. Species Hypnea fructiculosa Kutzing accepted as Hypnea fruticulosa Kützing, 1849 (misspelling)
35. Species Hypnea harveyi Kützing, 1849 accepted as Hypnea spicifera (Suhr) Harvey, 1847 (synonym)
36. Species Hypnea horrida (C.Agardh) J.Agardh, 1847 accepted as Endosiphonia horrida (C.Agardh) P.C.Silva, 1996
37. Species Hypnea saidana Holmes, 1896 accepted as Calliblepharis saidana (Holmes) M.Y.Yang & M.S.Kim, 2017

marine, fresh

Not documented

Guiry, M.D. & Guiry, G.M. (2024). AlgaeBase. World-wide electronic publication, National University of Ireland, Galway (taxonomic information republished from AlgaeBase with permission of M.D. Guiry). Hypnea J.V.Lamouroux, 1813. Accessed through: Odido, M.; Appeltans, W.; BelHassen, M.; Mussai, P.; Nsiangango, S.E.; Vandepitte, L.; Wambiji, N.; Zamouri, N. Jiddou, A.M. (Eds) (2024) African Register of Marine Species at: https://www.marinespecies.org/afremas/aphia.php?p=taxdetails&id=144157 on 2024-04-19

Odido, M.; Appeltans, W.; BelHassen, M.; Mussai, P.; Nsiangango, S.E.; Vandepitte, L.; Wambiji, N.; Zamouri, N. Jiddou, A.M. (Eds) (2024). African Register of Marine Species. Hypnea J.V.Lamouroux, 1813. Accessed at: https://marinespecies.org/afremas/aphia.php?p=taxdetails&id=144157 on 2024-04-19

[taxonomic tree]