Natural Genus Names With Abbreviations

The following table is provided by Julian Shaw, the International Orchid Registrar at the Royal Horticultural Society.
It is the result of a database table extraction to provide a list of Natural genus names in use with their valid abbreviations.
The data is the property of the Royal Horticultural Society and is used with their permission.
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Tcode: Status: Genus: Synonym? Abbreviation: Breeding group: Notes: Author 1: Author 2: Date Added: Author 2:
125166 p Aa FALSE Aa.   Xenia Orch. 1: 18 (1854);  Gen. Orch. 3: 24 (2003); Rchb.f.   03-Jul-02 gen
125116 p Abaxianthus TRUE Ab. 3 in The Orchadian 13(11): 485 (2002). Type: {Desmodium convexa} Blume. See {Flickingeria}. M.A.Clem. D.L.Jones 01-Jul-02 gen
125167 p Abdominea FALSE Abd.   in Bull. Jard. Bot. Buitenzorg, II, 14: 52 (1914). J.J.Sm.   03-Jul-02 gen
150588 c Aberrantia TRUE Abr. 85 in Monogr. Syst. Bot. Missouri Bot. Gard. 95: 253. Feb. 2004; Icon. Pleurothall. 26: 253. Feb 2004: Basionym,  {Pleurothallis} subgen. {Aberrantia}; nom. inval., published simultaneously with {Pleurothallis} subgen. {Aberrantia} Luer. (Luer) Luer 27-Oct-05 gen
759 p Acacallis TRUE Ac. 6 Fol. Orchid. 4: 30 (1853). See {Aganisia} Lindl.   21-Nov-88 gen
108 c Acampe FALSE Acp. 9 Fol. Orchid. 4: 1 (1853). Lindl.   21-Nov-88 gen
125168 p Acanthephippium FALSE Aca.   Bijdr.: 353 (1825); Endl. Gen. 200 (1837), {Acanthophippium} Blume orth. var. Bl. ex Endl. 03-Jul-02 gen
123541 c Aceras TRUE A. 12 in Aiton, Hort. Kew, ed. 2, 5, 191 (1813). Gen. Orch. 2(1): 333 (2001); See {Orchis} R.Br.   13-Feb-02 gen
125169 p Aceratorchis FALSE Ao.   Gen. Orch. 2(1): 245 (2001); Schltr.   03-Jul-02 gen
125785 p Acianthera FALSE Acia.   in Allg. Gartenzeitung 10: 292 (1842). cf. {Pleurothallis}. Scheidw.   10-Jul-02 gen
125170 p Acianthus FALSE Aci.   Gen. Orch. 2(1): 68 (2001); R.Br.   03-Jul-02 gen
109 c Acineta FALSE Acn. 5 in Edwards's Bot. Reg. 29(Misc.): 67 (1843); syn. {Neippergia}  C.Morren Lindl.   21-Nov-88 gen
130899 c Ackermania TRUE Akm. 6 in Orquideologia 18: 202 (1993), nom. illeg. see {Benzingia}  Dodson Dodson & R.Escobar 11-Apr-03 gen
125171 c Acoridium TRUE Aco.   in Nov. Actorum Acad. Caes. Leop.-Carol. Nat. Cur. 19(Suppl. 1): 131 (1843); see {Dendrochilum}  Blume, Nees & Meyen 03-Jul-02 gen
125172 p Acostaea FALSE Asa.   in Repert. Spec. Nov. Regni Veg. Beih. 19: 22, 283 (1923). Schltr.   03-Jul-02 gen
125173 p Acriopsis FALSE Acr.   Catalogus: 97 (1823). Reinw. ex Bl. 03-Jul-02 gen
125174 p Acrolophia FALSE Apa.   in H.G.A.Engler & K.A.E.Prantl (eds.), Nat. Pflanzenfam. 2(6): 133 (1888). Pfitzer   03-Jul-02 gen
141121 c Acronia TRUE Aro.   in Reliq. Haenk. 1: 103 (1827). cf. {Pleurothallis}.  C.Presl   16-Sep-04 gen
141637 c Acropera TRUE Acro. 5 Gen. Sp. Orchid. Pl.: 172 (1833). See {Gongora}. Lindl.   15-Oct-04 gen
125175 p Acrorchis FALSE Arr.   in Orquídea (Mexico City), n.s., 12: 14 (1990). Dressler   03-Jul-02 gen
110 c Ada FALSE Ada 8 in Fol. Orchid. 5: 1 (1853). Lindl.   21-Nov-88 gen
142446 c Adamantinia FALSE Adn. 7 in Orch. Digest 68(4): 230-231(2004); Van den Berg & C.N.Gonçalves 17-Nov-04 gen
126106 t Adelopetalum FALSE Adl. 11 in J. Bot. 29: 152 (1891); Orchadian 13(11): 498 (2002). cf. {Bulbophyllum} Fitzg.   09-Aug-02 gen
125176 p Adenochilus FALSE Ad.   Gen. Orch. 2(1): 85 (2001); Hook.f.   03-Jul-02 gen
125177 p Adenoncos FALSE Ade.   Bijdr.: 381 (1825); syn. {Podochilopsis} Guillaumin Blume   03-Jul-02 gen
125178 p Adrorhizon FALSE Adr.   in H.Trimen, Handb. Fl. Ceylon 4: 161 (1898). Hook.f.   03-Jul-02 gen
133467 c Aenhenrya FALSE Aen.   in J. Bomb. Nat. Hist. Soc. 90: 270 (1993); Gen. Orch. 3: 66 (2003); Gopalan   01-Sep-03 gen
111 c Aerangis FALSE Aergs. 9 in Flora 48: 190 (1865); syn. {Radinocion}  Ridl., Bol. Soc. Brot. 5: 200 (1887); {Barombia} Schltr., Orchideen: 600 (1914). Rchb.f.   21-Nov-88 gen
112 c Aeranthes FALSE Aerth. 9 in Bot. Reg. 10: t. 817 (1824). Lindl.   21-Nov-88 gen
113 c Aerides FALSE Aer. 9 Fl. Cochinch.: 525 (1790); syn. {Aeeridium} Salisb.; {Dendrorkis} Thouars; {Orxera} Raf.; {Aeridium} Pfeiff.   Note that {Aerides} is neuter hence {Aer. falcatum} not {Aer. falcata}. Lour.   21-Nov-88 gen
145179 c Aeridostachya TRUE Ads. 19 in Schlechter Orchideen 1(11-12): 714 (1981). cf. {Eria} (Hook.f.) Brieger 04-Mar-05 gen
102 c Aganisia FALSE Agn. 6 in Edwards's Bot. Reg. 25(Misc.): 45 (1839); syn. {Acacallis} Lindl., {Kochiophyton} Schltr. ex Cogn. Lindl.   21-Nov-88 gen
125179 p Aglossorhyncha FALSE Ag.   in K.M.Schumann & C.A.G.Lauterbach, Fl. Schutzgeb. Südsee, Nachtr.: 133 (1905). Schltr.   03-Jul-02 gen
125180 p Agrostophyllum FALSE Agr.   Bijdr.: 368 (1825); {Diploconchium}  Schauer, {Chitonochilus}  Schltr. Blume   03-Jul-02 gen
125181 p Alamania FALSE Al.   in P.de La Llave & J.M.de Lexarza, Nov. Veg. Descr. 2(Orch.Opusc.): 31 (1825). Lex.   03-Jul-02 gen
153077 c Alatiglossum TRUE Atg. 8 in Coletânea Orqu. Brasil. 3: 87 (Feb. 2006). Split from {Oncidium}, incl. sect. {Barbata} Lindl. Type: (Onc. barbatum} Lindl. D.H.Baptista   01-Mar-06 gen
125182 p Altensteinia FALSE Alt.   Nov. Gen. Sp. 1: 332, t.72, 73 (1816);  Gen. Orch. 3: 26 (2003); Kunth in Humboldt, Bonpland & Kunth 03-Jul-02 gen
145180 c Alvisia TRUE Alv. 19 Fol. Orchid. 8: 1 (1859). cf. {Eria}. Lindl.   04-Mar-05 gen
103 c Amblostoma FALSE Amb. 7 in Allg. Gartenzeitung 6: 383 (1838). Scheidw.   21-Nov-88 gen
125183 p Ambrella FALSE Aba.   in Bull. Soc. Bot. France 81: 655 (1934). H.Perrier   03-Jul-02 gen
125184 p Amerorchis FALSE Aos. 91 in Arq. Bot. Estado São Paulo, n.s., 7: 34 (1968). Hultén   03-Jul-02 gen
123553 p Amesiella FALSE Ame. 9 in Bot. Mus. Leafl. Harvard Univ., 23 (4): 159 (1972); Schltr. ex Garay 13-Feb-02 gen
125185 c Amitostigma FALSE Ami.   in Fedde, Repert. Beih. iv. 91 (1919): syn. {Mitostigma} Bl.; Gen. Orch. 2(1): 247 (2001); Schltr.   03-Jul-02 gen
125186 c Amparoa TRUE Amp. 8 in Repert. Spec. Nov. Regni Veg. Beih. 19: 64 (1923); see {Rhynchostele}. Schltr.   03-Jul-02 gen
125187 p Amphigena TRUE Aga. 94 in W.H.Harvey & auct. suc. (eds.), Fl. Cap. 5(2): 197 (1913); Gen. Orch. 2(1): 33 (2001); included in {Disa} pending further study. Rolfe   03-Jul-02 gen
141959 c Amphiglottis TRUE Amph. 7 in Trans. Hort. Soc. London 1: 294 (1812); see {Epidendrum}. Salisb.   29-Oct-04 gen
153076 c Ampliglossum TRUE Amg. 8 in Coletânea Orqu. Brasil. 3: 83 (Feb. 2006). Split from {Oncidium}, incl. sect. {Synsepala} Pfitz., sect. {Verrucituberculata} Lindl., sect. {Oblongata} Kraenzl. Type: {Onc. varicosum} Lindl. & Pax. Campacci   01-Mar-06 gen
123556 c Anacamptis FALSE Ant. 12 De Orchid. Eur.: 25 (1817); Gen. Orch. 2(1): 249 (2001); syn. {Vermeulenia} Á.Löve & D.Löve, {Anteriorchis} E.Klein & Strack. Rich.   13-Feb-02 gen
141929 p Anacheilium TRUE Ahl. 7 in Linnaea 16(Litt.): 229 (1842); see {Epidendrum} s.l. Hoffmanns.   27-Oct-04 gen
125786 p Anathallis FALSE Anat.   Gen. Spec. Orchid. 1: 23 (1877); cf. {Pleurothallis}. Barb.Rodr.   10-Jul-02 gen
150589 c Ancipitia TRUE Acip. 85 in Monogr. Syst. Bot. Missouri Bot. Gard. 95: 254. Feb 2004; Icon. Pleurothall. 26: 254. Feb 2004: basionym: {Pleurothallis} subgen. {Ancipitia}. (Luer) Luer 27-Oct-05 gen
125188 p Ancistrochilus FALSE Anc.   in D.Oliver & auct. suc. (eds.), Fl. Trop. Afr. 7: 44 (1897). Rolfe   03-Jul-02 gen
125189 p Ancistrorhynchus FALSE Anci.   in Bull. Soc. Bot. France 54(9): 44 (1907); syn. {Phormangis} Schltr. Finet   03-Jul-02 gen
125787 p Andinia FALSE Andi.   in Monogr. Syst. Bot. Missouri Bot. Gard. 79: 5 (2000). (Luer) Luer 10-Jul-02 gen
131737 c Andreettaea TRUE Adt.   in Selbyana, 2(2-3): 183 (1978). Syn. {Pleurothallis} subgen. {Andreettaea}  (Luer) C.A. Luer, Ic. Pleurothallid. III - Syst. Pleurothallis (Monogr. Syst. Bot. Missouri Bot. Gard. 20): 31 (1986). Luer   03-Jun-03 gen
125190 p Androchilus FALSE And.   in Bot. Not. 1844: 101 (1844). cf. {Ponthieva} R.Br. Liebm. ex Hartman 03-Jul-02 gen
125191 p Androcorys FALSE Andr.   in Repert. Spec. Nov. Regni Veg. Beih. 4: 52 (1919). Schltr.   03-Jul-02 gen
125192 p Angraecopsis FALSE Ago.   in Bot. Jahrb. Syst. 28: 171 (1900). Kraenzl.   03-Jul-02 gen
104 c Angraecum FALSE Angcm. 9 Voy. îles Afrique 1: 359 (1804). Bory   21-Nov-88 gen
105 c Anguloa FALSE Ang. 6 Fl. Peruv. Prodr.: 118 (1794). Ruiz & Pav. 21-Nov-88 gen
125193 p Ania FALSE Ani.   Gen. Sp. Orchid. Pl.: 129 (1831); syn. {Ascotainia} Ridl. Lindl.   03-Jul-02 gen
125194 p Anneliesia TRUE Ann. 8 in Orchidee (Hamburg) 34: 129 (1983); see {Miltonia}. Brieger & Lückel 03-Jul-02 gen
141968 p Anocheile TRUE Ache. 7 in Deut. Bot. Herb.-Buch: 235 (1841); see {Epidendrum}. Hoffmanns. ex Rchb. 29-Oct-04 gen
125195 p Anochilus TRUE Anoc.   in W.H.Harvey & auct. suc. (eds.), Fl. Cap. 5(2): 280 (1913); see { Pterygodium}  Sw. (Schltr.) Rolfe 03-Jul-02 gen
106 c Anoectochilus FALSE Anct. 2 Bijdr. 411 (1825); Gen. Orch. 3: 69 (2003); Bl.   21-Nov-88 gen
135823 c Anota TRUE Anota 9 Orchideen: 587 (1914); see {Rhynchostylis}  Blume, Bijdr.: 285 (1825). Schltr.   28-Jan-04 gen
107 c Ansellia FALSE Aslla. 6 in Edwards's Bot. Reg. 30: t. 12 (1844). Lindl.   21-Nov-88 gen
125790 p Anthereon FALSE Aten.   in Lindleyana 16: 252 (2001); cf. {Pleurothallis}. Pridgeon & M.W.Chase 10-Jul-02 gen
125196 p Anthogonium FALSE Agm.   Intr. Nat. Syst. Bot., ed. 2: 341 (1836). Wall. ex Lindl. 03-Jul-02 gen
125197 p Anthosiphon FALSE Asn.   in Repert. Spec. Nov. Regni Veg. Beih. 7: 182 (1920). Schltr.   03-Jul-02 gen
150590 c Antilla TRUE Alla. 85 in Monogr. Syst. Bot. Missouri Bot. Gard. 95: 255. Feb 2004; Icon. Pleurothall. 26: 255. Feb 2004, basionym: {Pleurothallis} subgen. {Antilla}. (Luer)  Luer 27-Oct-05 gen
125198 p Antillanorchis FALSE Als.   in Bradea 1: 423 (1974). Garay   03-Jul-02 gen
125791 p Aorchis FALSE Aor.   in Jahresber. Naturwiss. Vereins Wuppertal 25: 32 (1972). Verm.   10-Jul-02 gen
125199 p Aphyllorchis FALSE Aph.   Bijdr.: t. 16, f. 77 (1825); syn. {Sinorchis} S.C.Chen. Blume   03-Jul-02 gen
125200 p Aplectrum FALSE Apl.   Gen. N. Amer. Pl. 2: 197 (1818); syn. {Aplectra} Raf. (Nutt.) Torr. 03-Jul-02 gen
150591 c Apoda-prorepentia TRUE Apr. 85 in Monogr. Syst. Bot. Missouri Bot. Gard. 95: 255. Feb 2004; Icon. Pleurothall. 26: 255. Feb 2004, basionym: {Pleurothallis} subgen. {Apoda-prorepentia}. (Luer) Luer 27-Oct-05 gen
125117 p Aporopsis FALSE Ap. 3 in The Orchadian 13(11): 485 (2002). Basionym: {Den}. sect. {Rhodopolanthe} subsect. {Aporopsis} Schltr. (Schltr.)M.A.Clem. D.L.Jones 01-Jul-02 gen
125201 p Aporostylis FALSE Apor.   in Proc. Linn. Soc. New South Wales 70: 60 (1946); Gen. Orch. 2(1): 89 (2001); Rupp & Hatch 03-Jul-02 gen
125202 p Apostasia FALSE Ata.   Bijdr.: 423 (1825). Blume   03-Jul-02 gen
125203 p Appendicula FALSE App.   Bijdr.: 297 (1825). Blume   03-Jul-02 gen
125204 p Aracamunia FALSE Arc.   in Ann. Missouri Bot. Gard. 76: 962-964 (1989); Gen. Orch. 3: 168 (2003); Carnevali & I.Ramírez 03-Jul-02 gen
760 p Arachnanthe TRUE Ane. 9 in Rumphia 4: 55 (1849). See {Arachnis} Bl.   21-Nov-88 gen
114 c Arachnis FALSE Arach. 9 Bijdr.: 365 (1825); syn. {Arachnanthe} Blume. Blume   21-Nov-88 gen
132429 c Arachnorchis TRUE Anch.   in Orchadian 13: 392 (2001); see {Caladenia}. D.L.Jones & M.A.Clem. 11-Jul-03 gen
125205 p Archineottia FALSE Arch.     S.C.Chen   03-Jul-02 gen
150597 c Areldia FALSE Ael. 85 in Monogr. Syst. Bot. Missouri Bot. Gard. 95: 255. Feb 2004; Icon. Pleurothall. 26: 255. Feb 2004. Luer   28-Oct-05 gen
86492 c Arethusa FALSE Aret. 13   L.     gen
131748 c Argyrorchis TRUE Agy.   Coll. Orchid.: 120 (1859); see {Macodes}. Bl.   03-Jun-03 gen
761 c Armodorum FALSE Amm. 9 Orch. Kuhl. & Hass. (1827); Breda   21-Nov-88 gen
125206 p Arnottia FALSE Arn.     A.Rich.   03-Jul-02 gen
125207 p Arpophyllum FALSE Arpo.     Lex.   03-Jul-02 gen
135480 c Arthrochilium TRUE Arh. 12 Flora von Nieder-Oesterrich: 212 (1890); Die Orchidee 54(4): 587-589 (Dec. 2003). See {Epipactis} sect. {Arthrochilium}. (Irmisch) Beck 07-Jan-04 gen
125208 p Arthrochilus FALSE Arth.   Gen. Orch. 2(1): 135 (2001); F.Muell.   03-Jul-02 gen
125209 p Artorima FALSE Arto.     Dressler & G.E.Pollard 03-Jul-02 gen
123579 p Arundina FALSE Ar. 13 Bijdr.: 401 (1825). syn. {Arnedina} Rchb. Blume   13-Feb-02 gen
155152 c Asarca TRUE Asr.   in Quart. J. Roy. Inst. Gr. Brit., n.s., 1: 52 (1827). See {Gavilea} Poepp. Poepp. ex Lindl. 19-May-06 gen
125210 p Ascidieria FALSE Asci.     Seidenf.   03-Jul-02 gen
115 c Ascocentrum FALSE Asctm. 9 in Fedde, Repert. Beih. i. 975 (1913), in obs; AOS Bull. 55(2):104-111 (Feb. 1986); Schltr. ex J.J.Sm. 21-Nov-88 gen
125211 p Ascochilo