| Randia tomatillo Loes., 1922 |
| Randia tomentosa S. Watson, 1890 |
| Randia truncata Greenm. & C.H. Thomps., 1914 |
| Randia tubericollis Borhidi, E. Martínez & A. Nava, 2005 |
| Randia vazquezii Lorence & Dwyer, 1987 |
| Randia veracruzana Borhidi & E. Martínez, 2011 |
| Randia watsonii B.L. Rob., 1894 |
| Randia xalapensis M. Martens & Galeotti, 1844 |
| Ravnia Oerst., 1852 |
| Ravnia triflora Oerst., 1853 |
| Relbunium (Endl.) Benth. & Hook. f., 1873 |
| Relbunium aschenbornii (Schauer) Hemsl., 1881 |
| Relbunium hypocarpium (L.) Hemsl., 1881 |
| Relbunium laevigatum (DC.) Hemsl., 1881 |
| Relbunium microphyllum (A. Gray) Hemsl., 1881 |
| Relbunium polyplocum Hemsl., 1880 |
| Renistipula Borhidi, 2004 |
| Renistipula galeottii (Standl.) Borhidi, 2004 |
| Renistipula izabalensis (Standl. & Steyerm.) Borhidi, 2004 |
| Resinanthus (Borhidi) Borhidi, 2007 |