| Orchidaceae | |
Cattleya forbesii fo. alba
| A.S. Medeiros & Xim. Bols. | Richardiana 13: 165 | 2013 |
| Orchidaceae | |
Cattleya forbesii fo. andreana
| A.S. Medeiros & Pegoraro | Richardiana 16: 67–69, f. 1C, D | 2015 |
| Orchidaceae | |
Cattleya forbesii fo. aquinii
| A.S. Medeiros & Pegoraro | Orquidário 28(2): 56 | 2014 |
| Orchidaceae | |
Cattleya forbesii fo. aurea
| A.Seidel ex Roeth | Orchidee (Hamburg) 57: 608 | 2006 |
| Orchidaceae | |
Cattleya forbesii fo. beatriciana
| A.S. Medeiros & Pegoraro | Richardiana 13: 167 | 2013 |
| Orchidaceae | |
Cattleya forbesii fo. coerulea
| A.S. Medeiros & M. Zager | Cattleya forbesii Santa Catarina 11 | 2013 |
| Orchidaceae | |
Cattleya forbesii fo. delicata
| A.S. Medeiros & M. Zager | Cattleya forbesii Santa Catarina 11 | 2013 |
| Orchidaceae | |
Cattleya forbesii fo. eburnea
| A.S. Medeiros & Pegoraro | Richardiana 16: 69–70, f. 1E, F | 2015 |
| Orchidaceae | |
Cattleya forbesii fo. flammea
| A.S. Medeiros & M. Zager | Cattleya forbesii Santa Catarina 10 | 2013 |
| Orchidaceae | |
Cattleya forbesii fo. forbesii
| | | |
| Orchidaceae | |
Cattleya forbesii fo. maculata
| A.S. Medeiros & M. Zager | Cattleya forbesii Santa Catarina 10 | 2013 |
| Orchidaceae | |
Cattleya forbesii fo. marginata
| A.S. Medeiros & Xim. Bols. | Richardiana 13: 167 | 2013 |
| Orchidaceae | |
Cattleya forbesii fo. oculata
| A.S. Medeiros & Xim. Bols. | Richardiana 13: 167 | 2013 |
| Orchidaceae | |
Cattleya forbesii fo. parda
| A.S. Medeiros & Pegoraro | Cattleya forbesii Santa Catarina 10 | 2013 |
| Orchidaceae | |
Cattleya forbesii var. punctata
| J. Day ex Braem | Brazilian Bifoliate Cattleyas 39. 39 | 1984 |
| Orchidaceae | |
Cattleya forbesii fo. rosea
| A.S. Medeiros & Pegoraro | Cattleya forbesii Santa Catarina 10 | 2013 |
| Orchidaceae | |
Cattleya forbesii fo. rubra
| A.S. Medeiros & Pegoraro | Cattleya forbesii Santa Catarina 10 | 2013 |
| Orchidaceae | |
Cattleya forbesii fo. trilabellata
| A.S. Medeiros & M. Zager | Cattleya forbesii Santa Catarina 10 | 2013 |
| Orchidaceae | |
Cattleya forbesii fo. venosa
| A.S. Medeiros & Pegoraro | Cattleya forbesii Santa Catarina 10 | 2013 |
| Orchidaceae | |
Cattleya forbesii var. viridiflora
| Horta | Rodriguésia 1(3): 19 | 1936 |
| Orchidaceae | |
Cattleya forbesii fo. viridipetala
| A.S. Medeiros & Xim. Bols. | Richardiana 13: 170 | 2013 |