| Orchidaceae | ** |
Aberrantia | Luer | Monogr. Syst. Bot. Missouri Bot. Gard. 95: 253 | 2004 |
| Orchidaceae | ** |
Aberrantia aberrans | (Luer) Luer | Monogr. Syst. Bot. Missouri Bot. Gard. 95: 257 | 2004 |
| Orchidaceae | ! |
Acianthera | Scheidw. | Allg. Gartenzeitung 10(37): 292 | 1842 |
| Orchidaceae | ** |
Acianthera angustifolia | (Lindl.) Carnevali & G.A. Romero | Nuevo Cat. Fl. Vasc. Venezuela 753 | 2008 |
| Orchidaceae | |
Acianthera angustisepala | (Ames & Correll) Pridgeon & M.W. Chase | Lindleyana 16(4): 242 | 2001 |
| Orchidaceae | |
Acianthera circumplexa | (Lindl.) Pridgeon & M.W. Chase | Lindleyana 16(4): 243 | 2001 |
| Orchidaceae | |
Acianthera cogniauxiana | (Schltr.) Pridgeon & M.W. Chase | Lindleyana 16(4): 243 | 2001 |
| Orchidaceae | |
Acianthera crassilabia | (Ames & C. Schweinf.) Luer | Monogr. Syst. Bot. Missouri Bot. Gard. 95: 253 | 2004 |
| Orchidaceae | |
Acianthera decipiens | (Ames & C. Schweinf.) Pridgeon & M.W. Chase | Lindleyana 16(4): 243 | 2001 |
| Orchidaceae | |
Acianthera ellipsophylla | (L.O. Williams) Pridgeon & M.W. Chase | Lindleyana 16(4): 243 | 2001 |
| Orchidaceae | |
Acianthera geminicaulina | (Ames) Pridgeon & M.W. Chase | Lindleyana 16(4): 243 | 2001 |
| Orchidaceae | |
Acianthera hondurensis | (Ames) Pridgeon & M.W. Chase | Lindleyana 16(4): 244 | 2001 |
| Orchidaceae | |
Acianthera juxtaposita | (Luer) Luer | Monogr. Syst. Bot. Missouri Bot. Gard. 95: 253 | 2004 |
| Orchidaceae | |
Acianthera lanceana | (Lodd.) Pridgeon & M.W. Chase | Lindleyana 16(4): 244 | 2001 |
| Orchidaceae | |
Acianthera lojae | (Schltr.) Luer | Monogr. Syst. Bot. Missouri Bot. Gard. 95: 254 | 2004 |
| Orchidaceae | ** |
Acianthera martinezii | (Luer) Luer | Monogr. Syst. Bot. Missouri Bot. Gard. 95: 254 | 2004 |
| Orchidaceae | |
Acianthera obscura | (A. Rich. & Galeotti) Pridgeon & M.W. Chase | Lindleyana 16(4): 245 | 2001 |
| Orchidaceae | |
Acianthera pantasmi | (Rchb. f.) Pridgeon & M.W. Chase | Lindleyana 16(4): 245 | 2001 |
| Orchidaceae | |
Acianthera pubescens | (Lindl.) Pridgeon & M.W. Chase | Lindleyana 16(4): 245–246 | 2001 |
| Orchidaceae | |
Acianthera sicaria | (Lindl.) Pridgeon & M.W. Chase | Lindleyana 16(4): 246 | 2001 |
| Orchidaceae | |
Acianthera tikalensis | (Correll & C. Schweinf.) Pridgeon & M.W. Chase | Lindleyana 16(4): 246 | 2001 |
| Orchidaceae | |
Acianthera verecunda | (Schltr.) Pridgeon & M.W. Chase | Lindleyana 16(4): 246 | 2001 |
| Orchidaceae | |
Acianthera violacea | (A. Rich. & Galeotti) Pridgeon & M.W. Chase | Lindleyana 16(4): 246 | 2001 |
| Orchidaceae | |
Acinopetala | Luer | Monogr. Syst. Bot. Missouri Bot. Gard. 105: 3 | 2006 |
| Orchidaceae | |
Acinopetala adamsii | (Luer) Luer | Monogr. Syst. Bot. Missouri Bot. Gard. 105: 3 | 2006 |
| Orchidaceae | |
Acinopetala attenuata | (Rchb. f.) Luer | Monogr. Syst. Bot. Missouri Bot. Gard. 105: 3 | 2006 |
| Orchidaceae | |
Acinopetala chontalensis | (Rchb. f.) Luer | Monogr. Syst. Bot. Missouri Bot. Gard. 105: 3 | 2006 |
| Orchidaceae | |
Acinopetala flaveola | (Rchb. f.) Luer | Monogr. Syst. Bot. Missouri Bot. Gard. 105: 3 | 2006 |
| Orchidaceae | |
Acinopetala floribunda | (Lindl.) Luer | Monogr. Syst. Bot. Missouri Bot. Gard. 105: 3 | 2006 |
| Orchidaceae | ** |
Acinopetala laucheana | (Kraenzl. ex Woolward) Luer | Monogr. Syst. Bot. Missouri Bot. Gard. 105: 3 | 2006 |
| Orchidaceae | ** |
Acinopetala livingstoneana | (Roezl ex Rchb. f.) Luer | Monogr. Syst. Bot. Missouri Bot. Gard. 105: 3 | 2006 |
| Orchidaceae | |
Acinopetala nicaraguae | (Luer) Luer | Monogr. Syst. Bot. Missouri Bot. Gard. 105: 3 | 2006 |
| Orchidaceae | |
Acinopetala scabrilinguis | (Luer) Luer | Monogr. Syst. Bot. Missouri Bot. Gard. 105: 3 | 2006 |
| Orchidaceae | |
Acinopetala schizopetala | (Kraenzl.) Luer | Monogr. Syst. Bot. Missouri Bot. Gard. 105: 3 | 2006 |
| Orchidaceae | |
Acinopetala tokachiorum | (Luer) Luer | Monogr. Syst. Bot. Missouri Bot. Gard. 105: 3 | 2006 |
| Orchidaceae | |
Acinopetala tubuliflora | (Ames) Luer | Monogr. Syst. Bot. Missouri Bot. Gard. 105: 3 | 2006 |
| Orchidaceae | |
Acostaea | Schltr. | Repert. Spec. Nov. Regni Veg. Beih. 19: 22, 102, 283 | 1923 |
| Orchidaceae | |
Acostaea costaricensis | Schltr. | Repert. Spec. Nov. Regni Veg. Beih. 19: 22, 102, 284 | 1923 |
| Orchidaceae | |
Acostaea costaricensis subsp. bicornis | (Luer) Luer | Monogr. Syst. Bot. Missouri Bot. Gard. 24: 8 | 1987 |
| Orchidaceae | |
Acostaea costaricensis subsp. costaricensis | | | |
| Orchidaceae | |
Acostaea costaricensis subsp. unicornis | (Luer) Luer | Monogr. Syst. Bot. Missouri Bot. Gard. 24: 14 | 1987 |
| Orchidaceae | |
Acronia | C. Presl | Reliq. Haenk. 1: 103 | 1827 |
| Orchidaceae | |
Acronia allenii | (L.O. Williams) Luer | Monogr. Syst. Bot. Missouri Bot. Gard. 103: 57 | 2005 |
| Orchidaceae | |
Acronia annectens | (Luer) Luer | Monogr. Syst. Bot. Missouri Bot. Gard. 103: 57 | 2005 |
| Orchidaceae | |
Acronia archicolonae | (Luer) Luer | Monogr. Syst. Bot. Missouri Bot. Gard. 103: 57 | 2005 |
| Orchidaceae | |
Acronia aurita | (C. Schweinf.) Luer | Monogr. Syst. Bot. Missouri Bot. Gard. 103: 91, f. 17 | 2005 |
| Orchidaceae | |
Acronia bitumida | (Luer) Luer | Monogr. Syst. Bot. Missouri Bot. Gard. 103: 93, f. 21 | 2005 |
| Orchidaceae | |
Acronia bivalvis | (Lindl.) Luer | Monogr. Syst. Bot. Missouri Bot. Gard. 103: 93–96, f. 22 | 2005 |
| Orchidaceae | |
Acronia bothros | (Luer) Luer | Monogr. Syst. Bot. Missouri Bot. Gard. 103: 97, f. 24 | 2005 |
| Orchidaceae | |
Acronia cardiochila | (L.O. Williams) Luer | Monogr. Syst. Bot. Missouri Bot. Gard. 103: 103, f. 36 | 2005 |
| Orchidaceae | |
Acronia cardiothallis | (Rchb. f.) Luer | Monogr. Syst. Bot. Missouri Bot. Gard. 103: 106, f. 39 | 2005 |
| Orchidaceae | |
Acronia chavezii | (Luer) Luer | Monogr. Syst. Bot. Missouri Bot. Gard. 103: 110–111, f. 47 | 2005 |
| Orchidaceae | |
Acronia cobriformis | (L.O. Williams) Luer | Monogr. Syst. Bot. Missouri Bot. Gard. 103: 111, f. 48 | 2005 |
| Orchidaceae | |
Acronia compressa | (Luer) Luer | Monogr. Syst. Bot. Missouri Bot. Gard. 103: 112, f. 50 | 2005 |
| Orchidaceae | |
Acronia correllii | (Luer) Luer | Monogr. Syst. Bot. Missouri Bot. Gard. 103: 119, f. 59 | 2005 |
| Orchidaceae | |
Acronia dentipetala | (Rolfe ex Ames) Luer | Monogr. Syst. Bot. Missouri Bot. Gard. 103: 57 | 2005 |
| Orchidaceae | |
Acronia discoidea | (Lindl.) Luer | Monogr. Syst. Bot. Missouri Bot. Gard. 103: 128–129, f. 76A–B | 2005 |
| Orchidaceae | |
Acronia dorotheae | (Luer) Luer | Monogr. Syst. Bot. Missouri Bot. Gard. 103: 129–130, f. 77 | 2005 |
| Orchidaceae | |
Acronia dukei | (Luer) Luer | Monogr. Syst. Bot. Missouri Bot. Gard. 103: 57 | 2005 |
| Orchidaceae | |
Acronia excavata | (Schltr.) Luer | Monogr. Syst. Bot. Missouri Bot. Gard. 103: 133, f. 84 | 2005 |
| Orchidaceae | |
Acronia fantastica | (Ames) Luer | Monogr. Syst. Bot. Missouri Bot. Gard. 103: 134, f. 85 | 2005 |
| Orchidaceae | |
Acronia folsomii | Luer & Endara | Monogr. Syst. Bot. Missouri Bot. Gard. 103: 134–135, f. 86 | 2005 |
| Orchidaceae | |
Acronia hammelii | (Luer) Luer | Monogr. Syst. Bot. Missouri Bot. Gard. 103: 58 | 2005 |
| Orchidaceae | |
Acronia hawkinsii | Luer & Endara | Monogr. Syst. Bot. Missouri Bot. Gard. 103: 141, f. 98 | 2005 |
| Orchidaceae | |
Acronia homalantha | (Schltr.) Luer | Monogr. Syst. Bot. Missouri Bot. Gard. 103: 143, f. 102 | 2005 |
| Orchidaceae | |
Acronia imitor | (Luer) Luer | Monogr. Syst. Bot. Missouri Bot. Gard. 103: 58 | 2005 |
| Orchidaceae | |
Acronia isthmica | (Luer) Luer | Monogr. Syst. Bot. Missouri Bot. Gard. 103: 146, f. 107 | 2005 |
| Orchidaceae | |
Acronia leucantha | (Schltr.) Luer | Monogr. Syst. Bot. Missouri Bot. Gard. 103: 149–150, f. 114 | 2005 |
| Orchidaceae | |
Acronia longipedicellata | (Ames & C. Schweinf.) Luer | Monogr. Syst. Bot. Missouri Bot. Gard. 103: 58 | 2005 |
| Orchidaceae | |
Acronia luctuosa | (Rchb. f.) Luer | Monogr. Syst. Bot. Missouri Bot. Gard. 103: 58 | 2005 |
| Orchidaceae | |
Acronia maduroi | (Luer) Luer | Monogr. Syst. Bot. Missouri Bot. Gard. 103: 156, f. 123 | 2005 |
| Orchidaceae | |
Acronia matudana | (C. Schweinf.) Luer | Monogr. Syst. Bot. Missouri Bot. Gard. 103: 158–159, f. 127A–B | 2005 |
| Orchidaceae | |
Acronia nitida | (Luer) Luer | Monogr. Syst. Bot. Missouri Bot. Gard. 103: 164, f. 137 | 2005 |
| Orchidaceae | |
Acronia oncoglossa | (Luer) Luer | Monogr. Syst. Bot. Missouri Bot. Gard. 103: 166, f. 142 | 2005 |
| Orchidaceae | |
Acronia orygmoglossa | Luer & Dressler | Monogr. Syst. Bot. Missouri Bot. Gard. 103: 167, f. 144 | 2005 |
| Orchidaceae | |
Acronia pallida | (Luer) Luer | Monogr. Syst. Bot. Missouri Bot. Gard. 103: 58 | 2005 |
| Orchidaceae | |
Acronia palliolata | (Ames) Luer | Monogr. Syst. Bot. Missouri Bot. Gard. 103: 168, f. 146 | 2005 |
| Orchidaceae | |
Acronia pansamalae | (Schltr.) Luer | Monogr. Syst. Bot. Missouri Bot. Gard. 103: 169, f. 148 | 2005 |
| Orchidaceae | |
Acronia peculiaris | (Luer) Luer | Monogr. Syst. Bot. Missouri Bot. Gard. 103: 170, f. 150 | 2005 |
| Orchidaceae | |
Acronia phyllocardia | (Rchb. f.) Luer | Monogr. Syst. Bot. Missouri Bot. Gard. 103: 173–174, f. 157 | 2005 |
| Orchidaceae | |
Acronia phyllocardioides | (Schltr.) Luer | Monogr. Syst. Bot. Missouri Bot. Gard. 103: 174–176, f. 158 | 2005 |
| Orchidaceae | |
Acronia polysticta | (Luer) Luer | Monogr. Syst. Bot. Missouri Bot. Gard. 103: 58 | 2005 |
| Orchidaceae | |
Acronia radula | (Luer) Luer | Monogr. Syst. Bot. Missouri Bot. Gard. 103: 179, f. 165 | 2005 |
| Orchidaceae | |
Acronia rectipetala | (Ames & C. Schweinf.) Luer | Monogr. Syst. Bot. Missouri Bot. Gard. 103: 180 | 2005 |
| Orchidaceae | |
Acronia rhodoglossa | (Schltr.) Luer | Monogr. Syst. Bot. Missouri Bot. Gard. 103: 182, f. 169A–B | 2005 |
| Orchidaceae | |
Acronia rowleei | (Ames) Luer | Monogr. Syst. Bot. Missouri Bot. Gard. 103: 58 | 2005 |
| Orchidaceae | |
Acronia saccatilabia | (C. Schweinf.) Luer | Monogr. Syst. Bot. Missouri Bot. Gard. 103: 186, f. 176 | 2005 |
| Orchidaceae | |
Acronia sanchoi | (Ames) Luer | Monogr. Syst. Bot. Missouri Bot. Gard. 103: 186–187, f. 177A–B | 2005 |
| Orchidaceae | |
Acronia scaphipetala | (Luer) Luer | Monogr. Syst. Bot. Missouri Bot. Gard. 103: 189, f. 181 | 2005 |
| Orchidaceae | |
Acronia simulans | (L.O. Williams) Luer | Monogr. Syst. Bot. Missouri Bot. Gard. 103: 58 | 2005 |
| Orchidaceae | |
Acronia titan | (Luer) Luer | Monogr. Syst. Bot. Missouri Bot. Gard. 103: 198, f. 199 | 2005 |
| Orchidaceae | |
Acronia tonduzii | (Schltr.) Luer | Monogr. Syst. Bot. Missouri Bot. Gard. 103: 199, f. 200 | 2005 |
| Orchidaceae | |
Acronia volcanica | (Luer) Luer | Monogr. Syst. Bot. Missouri Bot. Gard. 103: 58 | 2005 |
| Orchidaceae | |
Alaticaulia | Luer | Monogr. Syst. Bot. Missouri Bot. Gard. 105: 4 | 2006 |
| Orchidaceae | |
Alaticaulia andresiana | (Luer & Maduro) Luer | Monogr. Syst. Bot. Missouri Bot. Gard. 112: 118 | 2007 |
| Orchidaceae | |
Alaticaulia cupularis | (Rchb. f.) Luer | Monogr. Syst. Bot. Missouri Bot. Gard. 112: 118 | 2007 |
| Orchidaceae | |
Alaticaulia maduroi | (Luer) Luer | Monogr. Syst. Bot. Missouri Bot. Gard. 112: 118 | 2006 |
| Orchidaceae | |
Alaticaulia thienii | (Dodson) Luer | Monogr. Syst. Bot. Missouri Bot. Gard. 112: 118 | 2007 |
| Orchidaceae | |
Anathallis | Barb. Rodr. | Gen. Sp. Orchid. 1: 23 | 1877 |
| Orchidaceae | |
Anathallis dolichopus | (Schltr.) Pridgeon & M.W. Chase | Lindleyana 16(4): 248 | 2001 |