| Rubiaceae | |
Sipanea acinifolia
| Spruce ex Sprague | Trans. & Proc. Bot. Soc. Edinburgh 22: 433 | 1905 |
| Rubiaceae | |
Sipanea angustifolia
| A. Rich. | Mém. Rubiac. 196 | 1830 |
| Rubiaceae | |
Sipanea ayangannensis
| Steyerm. | Mem. New York Bot. Gard. 17(1): 269 | 1967 |
| Rubiaceae | ** |
Sipanea biflora
| (L. f.) Cham. & Schltdl. | | |
| Rubiaceae | |
Sipanea biflora
| (Rottb.) Cham. & Schltdl. | Linnaea 4: 168 | 1829 |
| Rubiaceae | |
Sipanea brasiliensis
| Wernham | J. Bot. 55: 174 | 1917 |
| Rubiaceae | |
Sipanea carnea
| Neumann | Rev. Hort. (Paris) 2: 445 | 1844 |
| Rubiaceae | |
Sipanea carrenoi
| Steyerm. | Ann. Missouri Bot. Gard. 71: 333 | 1984 |
| Rubiaceae | |
Sipanea colombiana
| Wernham | J. Bot. 55: 174 | 1917 |
| Rubiaceae | |
Sipanea coppenamensis
| Bremek. | Recueil Trav. Bot. Néerl. 31: 258 | 1934 |
| Rubiaceae | |
Sipanea cowanii
| Steyerm. | Mem. New York Bot. Gard. 17: 265 | 1967 |
| Rubiaceae | |
Sipanea dichotoma
| Kunth | Nov. Gen. Sp. (quarto ed.) 3: 397 | 1818 [1820] |
| Rubiaceae | |
Sipanea elatior
| A. Rich. ex DC. | Prodr. 4: 415 | 1830 |
| Rubiaceae | |
Sipanea erythraeoides
| Cham. | Linnaea 9: 242 | 1834 |
| Rubiaceae | |
Sipanea galioides
| Wernham | J. Bot. 55: 172 | 1917 |
| Rubiaceae | |
Sipanea glaberrima
| (Bremek.) Steyerm. | Mem. New York Bot. Gard. 17: 270 | 1967 |
| Rubiaceae | |
Sipanea glabrata
| Wernham | J. Bot. 55: 173 | 1917 |
| Rubiaceae | |
Sipanea gleasonii
| Steyerm. | Mem. New York Bot. Gard. 17: 365 | 1967 |
| Rubiaceae | |
Sipanea glomerata
| Kunth | Nov. Gen. Sp. (quarto ed.) 3: 398 | 1818 [1820] |
| Rubiaceae | ! |
Sipanea hispida
| Benth. ex Wernham | J. Bot. 55: 173 | 1917 |
| Rubiaceae | ** |
Sipanea hispida
| Spruce ex K. Schum. | Fl. Bras. 6(6): 250 | 1889 |
| Rubiaceae | |
Sipanea limnophila
| Spruce ex Hook. f. | Hooker's Icon. Pl. 11: t. 1050 | 1868 |
| Rubiaceae | |
Sipanea micrantha
| Sandwith | Kew Bull. 1928: 378 | 1928 |
| Rubiaceae | |
Sipanea ovalifolia
| Bremek. | Recueil Trav. Bot. Néerl. 31: 259 | 1934 |
| Rubiaceae | * |
Sipanea palustris
| (A. Rich.) J.H. Kirkbr. | Brittonia 49(3): 360 | 1997 |
| Rubiaceae | ! |
Sipanea palustris
| Seem. | Bot. Voy. Herald 136 | 1854 |
| Rubiaceae | |
Sipanea prancei
| Steyerm. | Brittonia 33: 400 | 1981 |
| Rubiaceae | * |
Sipanea pratensis
| K. Schum. | Fl. Bras. 6(6): 249 | 1889 |
| Rubiaceae | ! |
Sipanea pratensis
| Aubl. | Hist. Pl. Guiane 1: 147, t. 56 | 1775 |
| Rubiaceae | |
Sipanea pubinoda
| Steyerm. | Mem. New York Bot. Gard. 17(1): 278 | 1967 |
| Rubiaceae | |
Sipanea radicans
| Endl. | Atakta Bot. 7 | 1833 |
| Rubiaceae | |
Sipanea rupicola
| Spruce ex K. Schum. | Fl. Bras. 4(4): 222 | 1889 |
| Rubiaceae | |
Sipanea saxicola
| J.H. Kirkbr. | Brittonia 49(3): 362, f. 3 | 1997 |
| Rubiaceae | |
Sipanea setacea
| Steyerm. | Ann. Missouri Bot. Gard. 74: 114 | 1987 |
| Rubiaceae | |
Sipanea spraguei
| Wernham | J. Bot. 55: 172 | 1917 |
| Rubiaceae | |
Sipanea stahelii
| Bremek. | Recueil Trav. Bot. Néerl. 31: 258 | 1934 |
| Rubiaceae | |
Sipanea trianae
| Wernham | J. Bot. 55: 174 | 1917 |
| Rubiaceae | |
Sipanea trichantha
| Miq. | Linnaea 18: 293–294 | 1844 [1845] |
| Rubiaceae | |
Sipanea veris
| S. Moore | Trans. Linn. Soc. London, Bot. 4: 368 | 1895 |
| Rubiaceae | |
Sipanea wilson-brownei
| R.S. Cowan | Brittonia 7: 412 | 1952 |