| Hypnaceae | ** |
Acosta conostega
| (Müll. Hal.) Müll. Hal. ex E.S. Salmon | Bull. Torrey Bot. Club 31: 321 | 1904 |
| Hypnaceae | |
Acosta cuspidata
| Müll. Hal. | Linnaea 21: 192 | 1848 |
| Hypnaceae | |
Acosta meyeniana
| (Hampe) Müll. Hal. | Linnaea 21: 194 | 1848 |
| Hypnaceae | |
Acosta rutilans
| (Brid.) Müll. Hal. | Linnaea 21: 194 | 1848 |
| Hypnaceae | |
Acosta swartzii
| (Schwägr.) Müll. Hal. | Linnaea 21: 191 | 1848 |