| Isochilus unilateralis B.L. Rob., 1894 |
| Jacquiniella Schltr., 1920 |
| Jacquiniella cernua (Lindl.) Dressler, 1966 |
| Jacquiniella cobanensis (Ames & Schltr.) Dressler, 1966 |
| Jacquiniella equitantifolia (Ames) Dressler, 1966 |
| Jacquiniella gigantea Dressler, Salazar & García-Cruz, 1992 |
| Jacquiniella globosa (Jacq.) Schltr., 1920 |
| Jacquiniella leucomelana (Rchb. f.) Schltr., 1920 |
| Jacquiniella teres Hamer & Garay, 1974 |
| Jacquiniella teretifolia (Sw.) Britton & P. Wilson, 1926 |
| Javieria Archila, Chiron & Szlach., 2013 |
| Javieria grandiflora (Lindl. & Paxton) Archila, Chiron & Szlach., 2013 |
| Javieria nodosa (L.) Archila, Chiron & Szlach., 2013 |
| Javieria venosa (Lindl.) Archila, Chiron & Szlach., 2013 |
| Karma Karremans, 2023 |
| Karma cedralensis (Ames) Karremans, 2023 |
| Karma dura (Lindl.) Karremans, 2023 |
| Kefersteinia Rchb. f., 1852 |
| Kefersteinia lactea (Rchb. f.) Schltr., 1923 |
| Kefersteinia tinschertiana Pupulin, 2004 |