| Common Name | Scientific Name | Code |
| n/a | Notothylas orbicularis (Schwein.) Sull. var. orbicularis | NOORO |
| n/a | Notothylas orbicularis (Schwein.) Sull. var. pseudotemperata R. M. Schust. | NOORP |
| Breutel's notothylas | Notothylas breutelii (Gottsche) Gottsche | NOBR3 |
| notothylas | Notothylas Sull. | NOTOT2 |
| Notothylas breutelii | Anthoceros breutelii Gottsche | ANBR16 |
| Notothylas breutelii | Notothylas amazonica Spruce | NOAM |
| Notothylas breutelii | Notothylas cubana Steph. | NOCU2 |
| Notothylas orbicularis var. orbicularis | Anthoceros decurva Mitt. | ANDE12 |
| Notothylas orbicularis var. orbicularis | Carpobolus orbicularis (Schwein.) Schwein. | CAOR19 |
| Notothylas orbicularis var. orbicularis | Carpolipum fertile Lehm. | CAFE10 |
| Notothylas orbicularis var. orbicularis | Carpolipum melanosporum (Sull.) Nees | CAME32 |
| Notothylas orbicularis var. orbicularis | Carpolipum orbiculare (Schwein.) Nees | CAOR20 |
| Notothylas orbicularis var. orbicularis | Carpolipum valvatum (Sull.) Nees | CAVA12 |
| Notothylas orbicularis var. orbicularis | Chamaeceros fertilis Milde [non Carpolipum fertile Lehm.] | CHFE8 |
| Notothylas orbicularis var. orbicularis | Notothylas angolensis Steph. | NOAN |
| Notothylas orbicularis var. orbicularis | Notothylas decurva (Mitt.) Steph. | NODE2 |
| Notothylas orbicularis var. orbicularis | Notothylas fertilis (Milde) Milde | NOFE2 |
| Notothylas orbicularis var. orbicularis | Notothylas japonica Horik. | NOJA |
| Notothylas orbicularis var. orbicularis | Notothylas melanospora Sull. | NOME |
| Notothylas orbicularis var. orbicularis | Notothylas valvata Sull. | NOVA |
| Notothylas orbicularis var. orbicularis | Targionia orbicularis Schwein. | TAOR |
| round notothylas | Notothylas orbicularis (Schwein.) Sull. | NOOR |