| Rubiaceae | |
Mallostoma acerosum
| (A. Gray) Hemsl. | Biol. Cent.-Amer., Bot. 2(7): 31 | 1881 |
| Rubiaceae | |
Mallostoma cachirense
| (H. Karst.) H. Karst. | Fl. Columb. 2: 9, tab. 105 | 1862 |
| Rubiaceae | |
Mallostoma caracasanum
| (Kunth) Hook. f. ex B.D. Jacks. | Index Kew. 3: 150 | 1894 |
| Rubiaceae | ** |
Mallostoma caracasanum
| Hook. f. | Gen. Pl. 2: 60 | 1965 |
| Rubiaceae | |
Mallostoma confertum
| (Ruiz & Pav.) Hook. f. ex B.D. Jacks. | Index Kew. 2: 150 | 1894 |
| Rubiaceae | |
Mallostoma filiforme
| (Ruiz & Pav.) Hook. f. ex B.D. Jacks. | Index Kew. 2: 150 | 1894 |
| Rubiaceae | |
Mallostoma hyssopifolium
| (Cav.) Hook. f. ex B.D. Jacks. | Index Kew. 1(2): 1101 | 1893 |
| Rubiaceae | |
Mallostoma juniperifolium
| (Ruiz & Pav.) Hook. f. ex B.D. Jacks. | Index Kew. 2: 150 | 1895 |
| Rubiaceae | |
Mallostoma laricifolium
| (Cav.) Benth. & Hook. f. ex B.D. Jacks. | Index Kew. 3: 150 | 1894 |
| Rubiaceae | ** |
Mallostoma lavarum
| Donn. Sm. | Enum. Pl. Guatem. 5: 36 | 1899 |
| Rubiaceae | ** |
Mallostoma nitidum
| Hook. f. | Gen. Pl. 2: 60 | 1873 |
| Rubiaceae | |
Mallostoma nitidum
| (Kunth) Hook. f. ex B.D. Jacks. | Index Kew. 2: 150 | 1895 |
| Rubiaceae | |
Mallostoma setosum
| (Ruiz & Pav.) Hook. f. ex B.D. Jacks. | Index Kew. 2: 150 | 1895 |
| Rubiaceae | |
Mallostoma shannonii
| Donn. Sm. | Bot. Gaz. 18(6): 203 | 1893 |
| Rubiaceae | |
Mallostoma thymifolium
| (Ruiz & Pav.) Benth. & Hook. f. ex B.D. Jacks. | Index Kew. 2: 150 | 1895 |