| Rubiaceae | |
Joosia aequatoria
| Steyerm. | Brittonia 27: 257 | 1975 |
| Rubiaceae | |
Joosia antioquiana
| C.M. Taylor | Novon 20(4): 475–476, fig. 2D, E | 2010 |
| Rubiaceae | |
Joosia capitata
| C.M. Taylor | Novon 25(2): 222–224, fig. 1A, B | 2017 |
| Rubiaceae | |
Joosia confusa
| C.M. Taylor | Novon 25(2): 224–225, fig. 1C, D | 2017 |
| Rubiaceae | |
Joosia dichotoma
| (Ruiz & Pav.) H. Karst. | Fl. Columb. 1: 9, t. 5 | 1858 |
| Rubiaceae | |
Joosia dielsiana
| Standl. | Publ. Field Mus. Nat. Hist., Bot. Ser. 11(5): 219–220 | 1936 |
| Rubiaceae | |
Joosia frondosa
| C.M. Taylor | Novon 25(2): 227–228, fig. 1E, F | 2017 |
| Rubiaceae | |
Joosia longisepala
| L. Andersson | Brittonia 49: 37 | 1997 |
| Rubiaceae | |
Joosia loretensis
| (Standl.) C.M. Taylor | Novon 25(2): 228–229 | 2017 |
| Rubiaceae | |
Joosia macrocalyx
| Standl. ex Steyerm. | Brittonia 27(3): 259 | 1975 |
| Rubiaceae | |
Joosia multiflora
| L. Andersson | Brittonia 49(1): 31–32, f. 1M | 1997 |
| Rubiaceae | |
Joosia obtusa
| L. Andersson | Brittonia 49(1): 37, f. 1G, I | 1997 |
| Rubiaceae | |
Joosia oligantha
| L. Andersson | Fl. Ecuador 50(162:1–4): 76 | 1994 |
| Rubiaceae | |
Joosia panamensis
| Dwyer | Ann. Missouri Bot. Gard. 67(2): 262, f. 55 | 1980 |
| Rubiaceae | |
Joosia pulcherrima
| Steere | Flora (Inst. Ecuat.) 3(7–10): 195 | 1943 |
| Rubiaceae | |
Joosia sericea
| (Standl.) C.M. Taylor | Novon 25(2): 232–233 | 2017 |
| Rubiaceae | |
Joosia standleyana
| Steyerm. | Brittonia 27: 257–258, f. 1–7 | 1975 |
| Rubiaceae | ** |
Joosia steyermarkii
| Standl. | | |
| Rubiaceae | |
Joosia ulei
| Steyerm. | Brittonia 27: 255 | 1975 |
| Rubiaceae | |
Joosia umbellifera
| H. Karst. | Fl. Columb. 1: 9, pl. 5 | 1858 [1859] |