| Rubiaceae | * |
Ferdinandusa andina
| Wedd. | Ann. Sci. Nat., Bot., sér. 4, 1: 78 | 1854 |
| Rubiaceae | |
Ferdinandusa boomii
| Steyerm. | Ann. Missouri Bot. Gard. 75: 339 | 1988 |
| Rubiaceae | |
Ferdinandusa chlorantha
| (Wedd.) Standl. | Trop. Woods 34: 41 | 1933 |
| Rubiaceae | |
Ferdinandusa cordata
| Ducke | Arch. Jard. Bot. Rio de Janeiro 3: 258 | 1922 |
| Rubiaceae | |
Ferdinandusa dissimiliflora
| (Mutis ex Humb.) Standl. | Publ. Field Mus. Nat. Hist., Bot. Ser. 7: 22 | 1930 |
| Rubiaceae | |
Ferdinandusa duckei
| Steyerm. | Mem. New York Bot. Gard. 23: 284 | 1972 |
| Rubiaceae | |
Ferdinandusa edmundoi
| Sucre | Rodriguésia 23–24: 15, tab. 5 | 1962 |
| Rubiaceae | |
Ferdinandusa elliptica
| (Pohl) Pohl | Pl. Bras. Icon. Descr. 2: 9–10, t. 106 | 1828 |
| Rubiaceae | |
Ferdinandusa goudotiana
| K. Schum. | Fl. Bras. 6(6): 211 | 1889 |
| Rubiaceae | |
Ferdinandusa guainiae
| Spruce ex K. Schum. | Fl. Bras. 6(6): 208 | 1889 |
| Rubiaceae | |
Ferdinandusa hirsuta
| Standl. | Publ. Field Mus. Nat. Hist., Bot. Ser. 8(3): 158 | 1930 |
| Rubiaceae | |
Ferdinandusa lanceolata
| K. Schum. | Fl. Bras. 6(6): 209 | 1889 |
| Rubiaceae | |
Ferdinandusa leucantha
| Standl. | Publ. Field Mus. Nat. Hist., Bot. Ser. 22(3): 190 | 1940 |
| Rubiaceae | |
Ferdinandusa loretensis
| Standl. | Publ. Field Mus. Nat. Hist., Bot. Ser. 8(5): 337 | 1931 |
| Rubiaceae | ** |
Ferdinandusa maupensis
| Spruce | | |
| Rubiaceae | |
Ferdinandusa neblinensis
| Steyerm. | Mem. New York Bot. Gard. 23: 283 | 1972 |
| Rubiaceae | |
Ferdinandusa nitida
| Ducke | Arch. Jard. Bot. Rio de Janeiro 3: 258 | 1922 |
| Rubiaceae | |
Ferdinandusa ovalis
| (Pohl) Pohl | Pl. Bras. Icon. Descr. 2: 10–11, t. 107 | 1828 |
| Rubiaceae | |
Ferdinandusa panamensis
| Standl. & L.O. Williams | Ceiba 3(1): 34 | 1952-1953 [1952] |
| Rubiaceae | |
Ferdinandusa paporiensis
| Suess. | Revista Sudamer. Bot. 7: 163–163 | 1943 |
| Rubiaceae | |
Ferdinandusa paraensis
| Ducke | Arch. Jard. Bot. Rio de Janeiro 3: 259 | 1922 |
| Rubiaceae | |
Ferdinandusa paxii
| H.J.P. Winkl. | Repert. Spec. Nov. Regni Veg. 7: 249 | 1909 |
| Rubiaceae | |
Ferdinandusa pubescens
| Wedd. | Ann. Sci. Nat., Bot., sér. 4, 1: 78 | 1854 |
| Rubiaceae | |
Ferdinandusa rudgeoides
| (Benth.) Wedd. | Ann. Sci. Nat., Bot., sér. 4, 1: 78 | 1854 |
| Rubiaceae | |
Ferdinandusa scandens
| Ducke | Arch. Jard. Bot. Rio de Janeiro 3: 260 | 1922 |
| Rubiaceae | |
Ferdinandusa schultesii
| Steyerm. | Mem. New York Bot. Gard. 23: 279–280 | 1972 |
| Rubiaceae | |
Ferdinandusa speciosa
| (Pohl) Pohl | Pl. Bras. Icon. Descr. 2: 12–13 | 1831 |
| Rubiaceae | |
Ferdinandusa sprucei
| K. Schum. | Fl. Bras. 6(6): 210 | 1889 |
| Rubiaceae | ** |
Ferdinandusa stellata
| Griseb. | Mem. Amer. Acad. Arts n.s., 8: 505 | 1863 |
| Rubiaceae | |
Ferdinandusa uaupensis
| Spruce ex K. Schum. | Fl. Bras. 6(6): 211–212 | 1889 |