| Rubiaceae | |
Ladenbergia acutifolia
| (Ruiz & Pav.) Klotzsch | Getreue Darstell. Gew. 14(2): sub t. 15 | 1846 |
| Rubiaceae | |
Ladenbergia amazonensis
| Ducke | Trop. Woods 31: 21 | 1932 |
| Rubiaceae | |
Ladenbergia bergeniana
| (Mart.) Klotzsch | Getreue Darstell. Gew. 14(2): sub t. 15 | 1846 |
| Rubiaceae | |
Ladenbergia bogotensis
| (H. Karst.) Standl. | Publ. Field Mus. Nat. Hist., Bot. Ser. 7: 18 | 1930 |
| Rubiaceae | |
Ladenbergia brenesii
| Standl. | Publ. Field Mus. Nat. Hist., Bot. Ser. 18(4): 1323–1324 | 1938 |
| Rubiaceae | |
Ladenbergia bullata
| (Wedd.) Standl. | Trop. Woods 34: 41 | 1933 |
| Rubiaceae | |
Ladenbergia buntingii
| Steyerm. | Acta Bot. Venez. 6: 99 | 1971 |
| Rubiaceae | |
Ladenbergia calycina
| (Wedd.) Standl. | Publ. Field Mus. Nat. Hist., Bot. Ser. 7: 18 | 1931 |
| Rubiaceae | |
Ladenbergia carua
| (Wedd.) Standl. | Publ. Field Mus. Nat. Hist., Bot. Ser. 7: 274 | 1931 |
| Rubiaceae | |
Ladenbergia cava
| Klotzsch ex Hayne | Getreue Darstell. Gew. 14(2): sub t. 15 | 1846 |
| Rubiaceae | |
Ladenbergia chapadensis
| S. Moore | Trans. Linn. Soc. London, Bot. 4: 367 | 1895 |
| Rubiaceae | |
Ladenbergia coriacea
| K. Krause | Bot. Jahrb. Syst. 40: 318 | 1908 |
| Rubiaceae | |
Ladenbergia crassifolia
| (Pav. ex DC.) Standl. | Publ. Field Mus. Nat. Hist., Bot. Ser. 7: 200 | 1931 |
| Rubiaceae | |
Ladenbergia cujabensis
| Klotzsch | Getreue Darstell. Gew. 14(2): sub t. 15 | 1846 |
| Rubiaceae | |
Ladenbergia densiflora
| (Benth.) Klotzsch | Getreue Darstell. Gew. 14: t. 5 | 1843 |
| Rubiaceae | |
Ladenbergia dichotoma
| (Ruiz & Pav.) Klotzsch | Getreue Darstell. Gew. 14(2): sub t. 15 | 1846 |
| Rubiaceae | |
Ladenbergia discolor
| K. Schum. | Fl. Bras. 6(6): 146 | 1889 |
| Rubiaceae | |
Ladenbergia dissimiliflora
| (Mutis ex Humb.) Klotzsch | Getreue Darstell. Gew. 14(2): sub t 15 | 1846 |
| Rubiaceae | |
Ladenbergia dwyeri
| L. Andersson | Nordic J. Bot. 17(3): 290 | 1997 |
| Rubiaceae | |
Ladenbergia epiphytica
| L. Andersson | Fl. Ecuador 50(162:1–2): 25 | 1994 |
| Rubiaceae | |
Ladenbergia ferruginea
| Klotzsch | | 1846 |
| Rubiaceae | |
Ladenbergia ferruginea
| Standl. | Publ. Field Mus. Nat. Hist., Bot. Ser. 8(5): 336 | 1931 |
| Rubiaceae | |
Ladenbergia firmula
| (Mart. ex Klotzsch) Klotzsch | Getreue Darstell. Gew. 14: t. 5 | 1843 |
| Rubiaceae | |
Ladenbergia franciscana
| C.M. Taylor | Novon 20(4): 476–477, fig. 2A | 2010 |
| Rubiaceae | |
Ladenbergia gavanensis
| (Schltdl.) Standl. | Publ. Field Mus. Nat. Hist., Bot. Ser. 13(6): 42 | 1936 |
| Rubiaceae | |
Ladenbergia graciliflora
| K. Schum. | Fl. Bras. 6(6): 145 | 1889 |
| Rubiaceae | |
Ladenbergia heterophylla
| (Wedd.) Standl. | Publ. Field Mus. Nat. Hist., Bot. Ser. 7: 18 | 1930 |
| Rubiaceae | |
Ladenbergia hexandra
| (Pohl) Klotzsch | Getreue Darstell. Gew. 14(2): sub t. 15 | 1846 |
| Rubiaceae | |
Ladenbergia hookeriana
| (Wedd.) Standl. | Publ. Field Mus. Nat. Hist., Bot. Ser. 7: 18 | 1931 |
| Rubiaceae | |
Ladenbergia klugii
| L. Andersson | Nordic J. Bot. 17(3): 273 | 1997 |
| Rubiaceae | |
Ladenbergia lambertiana
| (A. Braun ex Mart.) Klotzsch | Getreue Darstell. Gew. 14(2): sub t. 15 | 1846 |
| Rubiaceae | |
Ladenbergia laurifolia
| Dwyer | Ann. Missouri Bot. Gard. 67(2): 265 | 1980 |
| Rubiaceae | |
Ladenbergia lehmanniana
| L. Andersson | Nordic J. Bot. 17(3): 295 | 1997 |
| Rubiaceae | |
Ladenbergia lucens
| Standl. | Publ. Field Mus. Nat. Hist., Bot. Ser. 7: 362 | 1931 |
| Rubiaceae | |
Ladenbergia macrocarpa
| (Vahl) Klotzsch | Getreue Darstell. Gew. 14(2): sub t. 15 | 1846 |
| Rubiaceae | |
Ladenbergia macrocnemia
| (Mart.) Klotzsch | Getreue Darstell. Gew. 14(2): sub t. 15 | 1846 |
| Rubiaceae | |
Ladenbergia macrophylla
| Klotzsch | | |
| Rubiaceae | |
Ladenbergia magdalenae
| L. Andersson | Nordic J. Bot. 17(3): 279 | 1997 |
| Rubiaceae | |
Ladenbergia magnifolia
| (Ruiz & Pav.) Klotzsch | Getreue Darstell. Gew. 14(2): sub t. 15 | 1846 |
| Rubiaceae | |
Ladenbergia malacophylla
| Standl. | Publ. Field Mus. Nat. Hist., Bot. Ser. 8(3): 157 | 1930 |
| Rubiaceae | |
Ladenbergia moritziana
| Klotzsch | Getreue Darstell. Gew. 14(2): sub t. 15 | 1846 |
| Rubiaceae | |
Ladenbergia muzonensis
| (Goudot) Standl. | Publ. Field Mus. Nat. Hist., Bot. Ser. 7: 20 | 1931 |
| Rubiaceae | |
Ladenbergia nidita
| Klotzsch | | |
| Rubiaceae | |
Ladenbergia nitida
| (Benth.) Klotzsch | Getreue Darstell. Gew. 14: sub. t. 15 | 1843 |
| Rubiaceae | |
Ladenbergia nubigena
| L. Andersson | Nordic J. Bot. 17(3): 287 | 1997 |
| Rubiaceae | |
Ladenbergia oblongifolia
| (Humb. ex Mutis) L. Andersson | Fl. Ecuador 50(162: 1–4): 19 | 1994 |
| Rubiaceae | |
Ladenbergia obovata
| L. Andersson | Nordic J. Bot. 17(3): 292 | 1997 |
| Rubiaceae | |
Ladenbergia ovalifolia
| (Mutis) Klotzsch | Getreue Darstell. Gew. 14: t. 5 | 1843 |
| Rubiaceae | |
Ladenbergia paraensis
| Ducke | Arch. Jard. Bot. Rio de Janeiro 4: 176 | 1925 |
| Rubiaceae | |
Ladenbergia pauciflora
| L. Andersson | Nordic J. Bot. 17(3): 282 | 1997 |
| Rubiaceae | |
Ladenbergia pavanensis
| K. Schum. | | |
| Rubiaceae | |
Ladenbergia pavonii
| (Lamb.) Standl. | Publ. Field Mus. Nat. Hist., Bot. Ser. 7: 201 | 1931 |
| Rubiaceae | |
Ladenbergia pedunculata
| (H. Karst.) K. Schum. | Fl. Bras. 6(6): 146 | 1889 |
| Rubiaceae | ** |
Ladenbergia physophora
| Spruce ex K. Schum. | Fl. Bras. 6(6): 151 | 1889 |
| Rubiaceae | |
Ladenbergia pittieri
| Standl. | Publ. Field Mus. Nat. Hist., Bot. Ser. 8(1): 51 | 1930-1932 [1930] |
| Rubiaceae | |
Ladenbergia pogonanthera
| Kuhlm. ex Sucre | Rodriguésia 23–24: 16 | 1962 |
| Rubiaceae | |
Ladenbergia puberula
| Steyerm. | Mem. New York Bot. Gard. 23: 270, f. 56 | 1972 |
| Rubiaceae | |
Ladenbergia riedeliana
| (Casar.) Klotzsch | Repert. Bot. Syst. 6: 68 | 1846 |
| Rubiaceae | |
Ladenbergia riveroana
| (Wedd.) Standl. | Publ. Field Mus. Nat. Hist., Bot. Ser. 7: 201 | 1931 |
| Rubiaceae | |
Ladenbergia roraimae
| (Benth.) Klotzsch | Getreue Darstell. Gew. 14(2): sub t. 15 | 1846 |
| Rubiaceae | ** |
Ladenbergia rosea
| Klotzsch | | |
| Rubiaceae | |
Ladenbergia rubiginosa
| L. Andersson | Fl. Ecuador 51(162:1–4): 31 | 1994 |
| Rubiaceae | |
Ladenbergia ruiziana
| Klotzsch | | |
| Rubiaceae | |
Ladenbergia schomburgkii
| Klotzsch | Getreue Darstell. Gew. 14(2): sub t. 15 | 1846 |
| Rubiaceae | |
Ladenbergia sericea
| Standl. | Publ. Field Mus. Nat. Hist., Bot. Ser. 7: 275 | 1931 |
| Rubiaceae | |
Ladenbergia sericophylla
| Standl. | Publ. Field Mus. Nat. Hist., Bot. Ser. 18(4): 1324 | 1938 |
| Rubiaceae | |
Ladenbergia shawistigma
| Chilq. | Syst. Bot. 42(4): 1–4, fig. a–b, 2a–i | 2017 |
| Rubiaceae | |
Ladenbergia siranensis
| Chilq. | Brittonia 71(2): 167–170, f. 1, 3B | 2019 |
| Rubiaceae | |
Ladenbergia stenocarpa
| (Lamb.) Klotzsch | Getreue Darstell. Gew. 14(2): sub t. 15 | 1846 |
| Rubiaceae | |
Ladenbergia tenuiflora
| (Benth.) Klotzsch | Getreue Darstell. Gew. 14(2): sub t. 15 | 1846 |
| Rubiaceae | |
Ladenbergia tovarensis
| (H. Karst.) Standl. | Publ. Field Mus. Nat. Hist., Bot. Ser. 7: 364 | 1931 |
| Rubiaceae | |
Ladenbergia ulei
| Standl. | Publ. Field Mus. Nat. Hist., Bot. Ser. 11(5): 220 | 1936 |
| Rubiaceae | |
Ladenbergia undata
| Klotzsch | Getreue Darstell. Gew. 14(2): sub t. 15 | 1846 |
| Rubiaceae | |
Ladenbergia valerii
| Standl. | Publ. Field Mus. Nat. Hist., Bot. Ser. 18(4): 1324–1325 | 1938 |
| Rubiaceae | |
Ladenbergia venamoensis
| Steyerm. | Mem. New York Bot. Gard. 23: 271 | 1972 |
| Rubiaceae | |
Ladenbergia warscewicziana
| Klotzsch | | |