| Monsonia alexandraensis R.Knuth | Monsonia grandifolia R.Knuth |
| Monsonia belfastensis Knuth | Monsonia attenuata Harv. |
| Monsonia burmannii DC. | Sarcocaulon spinosum (Burm.f.) Kuntze |
| Monsonia camdeboensis (Moffett) F.Albers | Sarcocaulon camdeboense Moffett |
| Monsonia ciliata (Moffett) F.Albers | Sarcocaulon ciliatum Moffett |
| Monsonia crassicaulis (S.E.A. Rehm) F.Albers | Sarcocaulon spinosum (Burm.f.) Kuntze |
| Monsonia dregeana C.Presl | Monsonia speciosa L. |
| Monsonia filia L.f. | Monsonia speciosa L. |
| Monsonia flavescens (S.E.A.Rehm) F.Albers | Sarcocaulon flavescens S.E.A.Rehm |
| Monsonia grandiflora Burm.f. | Sarcocaulon lheritieri (DC.) Sweet |
| Monsonia herrei (L.Bolus) F.Albers | Sarcocaulon herrei L.Bolus |
| Monsonia incisa Dum.Cours. | Monsonia speciosa L. |
| Monsonia inermis (S.E.A.Rehm) F.Albers | Sarcocaulon inerme S.E.A.Rehm |
| Monsonia lanceolata R.Knuth | Monsonia grandifolia R.Knuth |
| Monsonia lheritieri DC. | Sarcocaulon lheritieri (DC.) Sweet |
| Monsonia lobata Montin | Monsonia speciosa L. |
| Monsonia mossamedensis Welw. ex Oliv. | Sarcocaulon mossamedense (Welw. ex. Oliv.) Hiern |
| Monsonia obcordata E,Mey, | Sarcocaulon lheritieri (DC.) Sweet |
| Monsonia ovata Cav. | Monsonia emarginata (L.f.) L‘Hér. |
| Monsonia patersonii DC. | Sarcocaulon patersonii (DC.) G.Don |
| Monsonia peniculina (Moffett) F.Albers | Sarcocaulon peniculinum Moffett |
| Monsonia pilosa Willd. | Monsonia speciosa L. |
| Monsonia rudatisii R.Knuth | Monsonia grandifolia R.Knuth |
| Monsonia salmoniflora (Moffett) F.Albers | Sarcocaulon salmoniflorum Moffett |
| Monsonia spinosa L�Hér. | Sarcocaulon lheritieri (DC.) Sweet |
| Monsonia tenuifolia Willd. | Monsonia speciosa L. |
| Monsonia vanderietiae (L.Bolus) F.Albers | Sarcocaulon vanderietiae L.Bolus |