Rebo - Rino
- Reboulia hemisphaerica (L.) Raddi
- Reboulia hemisphaerica (L.) Raddi
- Reboulia hemisphaerica (L.) Raddi ssp. acrogyna (R.M. Schust.) R.M. Schust.
- Reboulia hemisphaerica (L.) Raddi ssp. acrogyna (R.M. Schust.) R.M. Schust.
- Reboulia hemisphaerica (L.) Raddi ssp. acrogyna (R.M. Schust.) R.M. Schust.
- Reboulia hemisphaerica (L.) Raddi ssp. acrogyna (R.M. Schust.) R.M. Schust.
- Reboulia hemisphaerica (L.) Raddi ssp. australis R.M. Schust.
- Reboulia hemisphaerica (L.) Raddi ssp. australis R.M. Schust.
- Reboulia hemisphaerica (L.) Raddi ssp. dioica R.M. Schust.
- Reboulia hemisphaerica (L.) Raddi ssp. dioica R.M. Schust.
- Reboulia hemisphaerica (L.) Raddi ssp. hemisphaerica
- Reboulia hemisphaerica (L.) Raddi ssp. hemisphaerica
- Reboulia Raddi, nom. cons.
- Rebutia K. Schum.
- Rechingeria cribellifera (Nyl.) Servit
- Rechingeria cribellifera (Nyl.) Servit
- Rectanthera fragrans (Lindl.) O. Deg.
- Rectanthera fragrans (Lindl.) O. Deg.
- Rectolejeunea A. Evans
- Rectolejeunea berteroana (Gottsche) A. Evans
- Rectolejeunea berteroana (Gottsche) A. Evans
- Rectolejeunea brittoniae A. Evans
- Rectolejeunea evansiana R.M. Schust.
- Rectolejeunea maxonii A. Evans
- Rectolejeunea phyllobola (Nees & Mont.) A. Evans
- Rectolejeunea phyllobola (Nees & Mont.) A. Evans
- Rectolejeunea pililoba (Spruce) R.M. Schust.
- Rectolejeunea pililoba (Spruce) R.M. Schust.
- Rectolejeunea spiniloba (Lindenb. & Gottsche) R.M. Schust.
- Rectolejeunea spiniloba (Lindenb. & Gottsche) R.M. Schust.
- Redfieldia flexuosa (Thurb.) Vasey
- Redfieldia flexuosa (Thurb.) Vasey
- Redfieldia Vasey
- Refractohilum D. Hawksw.
- Refractohilum peltigerae (Keissler) D. Hawksw.
- Refractohilum peltigerae (Keissler) D. Hawksw.
- Regnellidium diphyllum Lindm. [excluded]
- Regnellidium Lindm.
- Rehsonia floribunda (Willd.) Stritch
- Rehsonia floribunda (Willd.) Stritch
