| SNo. | Scientific Name | Locality | Habitat | Basis of Record | Description | Recorded By | Record Number | Island | Source | Date |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Hypoglossum rhizophorum | Waianae Small Boat Harbor | Preserved_Specimen | Puttock, C.F. | 316 | Oahu | BISH | 2000-08-08 | ||
| 2 | Hypoglossum rhizophorum | Kawailoa Beach, (right of Chuns), North Shore | Growing on red algae on underside of roof of large cave, 7250 ft. from shore. | Preserved_Specimen | Tetrasporangial. | Magruder, W.H. | 904 | Oahu | BISH | 1986-08-01 |
| 3 | Hypoglossum rhizophorum | Maili Point | Preserved_Specimen | Tetrasporangial. | Magruder, W.H. | 739 | Oahu | BISH | 1990-11-25 | |
| 4 | Hypoglossum rhizophorum | Oahu | Preserved_Specimen | 703 | Oahu | BISH | ||||
| 5 | Hypoglossum rhizophorum | Kamalo | Epiphytic on Halimeda. | Preserved_Specimen | Spermatangial. | Okano, R. | 25750 | Molokai | BISH | 2000-02-03 |
| 6 | Hypoglossum rhizophorum | Waianae Small Boat Harbor | intertidal; on Bryozoan | Preserved_Specimen | Shultz, K. | 742 | Oahu | BISH | 2000-12-12 | |
| 7 | Hypoglossum rhizophorum | Kaneohe Bay, Patch Reef in northern end of bay | Growing on dead coralline algae in very shady places | Preserved_Specimen | Tetraspore | Magruder, W.H. | 668 | Oahu | BISH | 1990-09-04 |
| 8 | Hypoglossum rhizophorum | Kamiloloa | Epiphytic on Halimeda discoidea. | Preserved_Specimen | Spermatangial. | Okano, R. | 25606 | Molokai | BISH | 2000-02-03 |
| 9 | Hypoglossum rhizophorum | Hunakai St., Kahala | Growing in dead coral fingers in deep channel. In very shady habitat. | Preserved_Specimen | Spermatangial. | Magruder, W.H. | 740 | Oahu | BISH | 1986-07-05 |
| 10 | Hypoglossum rhizophorum | Kamalo | Epiphytic on Chlorodesmis. | Preserved_Specimen | Okano, R. | 25722 | Molokai | BISH | 2000-02-03 | |
| 11 | Hypoglossum rhizophorum | Black Point, about 30 meters from Koko Head corner of Point | Intertidal-upper subtidal.; On basalt rocks, forming extensive mats. | Preserved_Specimen | Very dark red to slightly brownish. With abundnt zonate tetrasporangia. | Magruder, W.H. | 703 | Oahu | BISH | 1986-06-01 |