- Merxmuellera disticha
- Merxmuellera disticha (Nees) Conert
- Merxmuellera guillarmodiae
- Merxmuellera guillarmodiae Conert
- Merxmuellera stricta
- Rytidosperma distichum
- Rytidosperma distichum (Nees) T.A. Cope
- Tenaxia disticha
- Tenaxia disticha (Nees) N. P. Barker & H. P. Linder
- Tenaxia disticha (Nees) N.P. Barker & H.P. Linder var. texana
- Tenaxia disticha (Nees) N.P. Barker & H.P. Linder
- Tenaxia guillamodiae
- Tenaxia guillamodiae (Conert) N.P.Barker & H.P.Linder
- Tenaxia guillarmodiae
- Tenaxia guillarmodiae (Conert) N.P.Barker & H.P.Linder
- Tenaxia guillarmodiae (Conert) N.P. Barker & H.P. Linder
- Tenaxia sp.
- Tenaxia stricta
- Tenaxia stricta (Schrad.) N. P. Barker & H. P. Linder
- Tenaxia stricta (Schrad.) N.P.Baker & H.P.Linder