| Ramalina sharpii Rundel, 1978 |
| Ramalina sinaloensis Bowler & Rundel, 1973 |
| Ramalina sinensis Jatta, 1902 |
| Ramalina sonorensis Kashiw. & T.H. Nash, 1994 |
| Ramalina sorediantha Nyl., 1870 |
| Ramalina subcalicaris (Nyl.) Zahlbr., 1930 |
| Ramalina subfraxinea Nyl., 1870 |
| Ramalina usnea (L.) R. Howe, 1914 |
| Ramalina usneoides (Ach.) Mont., 1837 |
| Ramalina wigginsiae Rundel & Bowler, 1973 |
| Ramalinaceae C. Agardh, 1821 |
| Scutula Tul., 1852 |
| Scutula circumspecta (Nyl. ex Vain.) Kistenich, 2018 |
| Thalloidima A. Massal., 1852 |
| Thalloidima ioen (Herre) S. Ekman & Timdal, 2018 |
| Toniniopsis Frey, 1926 |
| Toniniopsis aromatica (Sm.) Kistenich, 2018 |
| Trichoramalina Rundel & Bowler, 1974 |
| Trichoramalina crinita (Tuck.) Rundel & Bowler, 1974 |
| Vermilacinia Spjut & Hale, 1995 |