| Orchidaceae | |
Hexadesmia acostae
| Schltr. | Repert. Spec. Nov. Regni Veg. Beih. 19: 293 | 1923 |
| Orchidaceae | |
Hexadesmia bicornis
| Lindl. | Edwards's Bot. Reg. Misc. 41 | 1844 |
| Orchidaceae | |
Hexadesmia bifida
| Rchb. f. | Refug. Bot. 2: sub t. 113 | 1872 |
| Orchidaceae | |
Hexadesmia boliviensis
| Rolfe | Mem. Torrey Bot. Club 6(1): 122 | 1896 |
| Orchidaceae | |
Hexadesmia brachyphylla
| Rchb. f. | Beitr. Orchid.-K. C. Amer. 89 | 1866 |
| Orchidaceae | |
Hexadesmia cearensis
| Schltr. | Notizbl. Bot. Gart. Berlin-Dahlem 6: 124 | 1914 |
| Orchidaceae | |
Hexadesmia confusa
| Schltr. | Repert. Spec. Nov. Regni Veg. 10(254–256): 361 | 1912 |
| Orchidaceae | |
Hexadesmia crurigera
| Lindl. | Edwards's Bot. Reg. 30: Misc. 2 | 1844 |
| Orchidaceae | |
Hexadesmia dunstervillei
| Garay | Bot. Mus. Leafl. 18: 203 | 1958 |
| Orchidaceae | |
Hexadesmia falcata
| C. Schweinf. | Bot. Mus. Leafl. 8(2): 45–47, f. s.n. | 1940 |
| Orchidaceae | |
Hexadesmia fasciculata
| Brongn. | Ann. Sci. Nat., Bot., sér. 2, 17: 45 | 1842 |
| Orchidaceae | |
Hexadesmia fusiformis
| Griseb. | Fl. Brit. W. I. 623 | 1864 |
| Orchidaceae | |
Hexadesmia hondurensis
| Ames | Bot. Mus. Leafl. 1(6): 1–2, f. | 1933 |
| Orchidaceae | |
Hexadesmia jimenezii
| Schltr. | Repert. Spec. Nov. Regni Veg. Beih. 19: 293–294 | 1923 |
| Orchidaceae | |
Hexadesmia lindeniana
| A. Rich. & Galeotti | Ann. Sci. Nat., Bot., sér. 3, 3: 23–24, t. 23 | 1845 |
| Orchidaceae | |
Hexadesmia lurida
| Bateman | Orchid. Mexico Guatemala Syn. Orch. | 1842 |
| Orchidaceae | |
Hexadesmia micrantha
| Lindl. | Edwards's Bot. Reg. 30: Misc. 2 | 1844 |
| Orchidaceae | |
Hexadesmia monophylla
| Barb. Rodr. | Gen. Sp. Orchid. 1: 80 | 1877 |
| Orchidaceae | |
Hexadesmia pachybulbon
| Schltr. | Repert. Spec. Nov. Regni Veg. Beih. 17: 26–27 | 1922 |
| Orchidaceae | |
Hexadesmia powellii
| Schltr. | Repert. Spec. Nov. Regni Veg. Beih. 17: 27 | 1922 |
| Orchidaceae | ** |
Hexadesmia pulchella
| (Schltr.) Brieger | Orchideen (ed. 3) 8(29–32): 486 | 1976 |
| Orchidaceae | ** |
Hexadesmia pulchella
| Schltr. | Repert. Spec. Nov. Regni Veg. Beih. 19: 296 | 1923 |
| Orchidaceae | ! |
Hexadesmia pulchella
| (Schltr.) Schltr. ex Ames | Publ. Field Mus. Nat. Hist., Bot. Ser. 18(1): 236 | 1937 |
| Orchidaceae | |
Hexadesmia reedii
| Rchb. f. | Refug. Bot. 2: t. 113 | 1872 |
| Orchidaceae | |
Hexadesmia rhodoglossa
| Rchb. f. | Bonplandia (Hannover) 4: 328 | 1856 |
| Orchidaceae | |
Hexadesmia rigidipes
| Schltr. | Repert. Spec. Nov. Regni Veg. Beih. 19: 206 | 1923 |
| Orchidaceae | |
Hexadesmia sessilis
| Rchb. f. | Refug. Bot. 2: sub t. 113 | 1872 |
| Orchidaceae | ** |
Hexadesmia stenopetala
| Rchb. f. | Bonplandia (Hannover) 3: 221 | 1855 |
| Orchidaceae | |
Hexadesmia stenotepala
| Rchb. f. | Bonplandia (Hannover) 3: 221 | 1855 |
| Orchidaceae | |
Hexadesmia tenella
| (L.O. Williams) A.H. Heller ex Hamer | Icon. Pl. Trop. 8: , t. 777 | 1983 |