Voucher information and Genbank accession numbers for the samples used in this study.
| Species name | Voucher | ITS | trnL-F | matK |
|---|---|---|---|---|
| Acianthera ochreata (Lindl.) Pridgeon & M.W.Chase | Harley 15636 (K spirit) | AF262858 | AY008446–7 | AY008458 |
| Acrorchis roseola Dressler | W.M. Whitten 399 (FLAS) | AY008521 | AY422389 | AY397086 |
| Alamania punicea La Llave & Lex. | van den Berg C184 (ESA) | AF260177 | AF267005 | AF263783 |
| Anathallis racemiflora (Lindl. ex Lodd.) Pridgeon & M.W.Chase | W.E. Higgins 140 (FLAS 198267) | AY008477 | AY422379 | AY396076 |
| Arpophyllum giganteum Hartw. ex Lindl. | Chase O-586 (K) | AF266742 | AF266975 | AF265485 |
| Artorima erubescens (Lindl.) Dressler & G.E.Pollard | Chase O-6412 (K) | AF260178 | AF267006–7 | AF263756 |
| Barkeria skinneri (Batem. ex Lindl.) Lindl. ex Paxton | van den Berg C250 (K spirit) | AF260171 | AF266066–7 | AF263750 |
| Barkeria whartoniana (C.Schweinf.) Soto Arenas | van den Berg C249 (K spirit) | AF260170 | AF266999 | AF263754 |
| Bletia catenulata Ruiz & Pav. | E.L. Borba 590 (UEC) | AY008462 | AF008449–50 | AY121720 |
| Bletia catenulata Ruiz & Pav. | W. Forster 10 (ESA) | AY008461 | AF219024–5 | AY121718 |
| Bletia purpurea DC. | van den Berg C342 (K spirit) | AY008463 | AY008451–2 | AF518022–3 |
| Brassavola cucullata (L.) R.Br. | W.E. Higgins 130 (FLAS 198290) | AY008589 | AF263819 | AY396097 |
| Brassavola martiana Lindl. | Unvouchered (Kew 1995-2685) | AF260220 | AF267060–1 | AF263821 |
| Brassavola nodosa (L.) Lindl. | Chase O-339 (K) | AF260219 | AF267059 | AF263820 |
| Brassavola tuberculata Hook. | Brieger Coll. 3497 (ESA) | AF260217 | AF267057 | AF263818 |
| Broughtonia dominguensis (Lindl.) Rolfe | W.E. Higgins 1039 (FLAS) | AF260187 | AF267016–7 | AF263791 |
| Broughtonia lindenii (Lindl.) Dressler | W.E. Higgins 251 (FLAS 198289) | AY008570 | AY422399 | AY396096 |
| Broughtonia negrilensis Fowlie | W.E. Higgins 152 (FLAS 198288) | AF008569 | AY422396 | AY396093 |
| Broughtonia sanguinea (Sw.) R.Br. | Brieger Coll. 14440 (ESA) | AF260186 | AF267015 | AF263790 |
| Cattleya aclandiae Lindl. | Brieger Coll. 32982 (ESA) | AF260207 | AF267040 | AF263810 |
| Cattleya alaorii Brieger & Bicalho | Brieger Coll. 19179 (ESA) | AF260195 | AF267026 | AF263799 |
| Cattleya araguaiensis Pabst | Unvouchered (Kew 1999-1443) | AF260215 | AF267054 | AF263817 |
| Cattleya brevipedunculata (Cogn.) Van den Berg | São Paulo B.G. s.n. IBDF (SP) | AF260202 | AF267034 | AF263805 |
| Cattleya cernua (Lindl.) Van den Berg | Brieger Coll. 15737 (ESA) | AF260200 | AF267032 | AF263803 |
| Cattleya coccinea (Lindl.) Rchb.f. | São Paulo B.G. 9577 (SP) | AF260201 | AF267033 | AF263804 |
| Cattleya dowiana Batem. | Chase O-282 (K) | AF260210 | AF267045 | AF263638 |
| Cattleya esalqueana (Blumensch. ex Pabst) Van den Berg | Brieger Coll. 4980 (ESA) | AF260198 | AF267029 | AF263751 |
| Cattleya fidelensis (Pabst) Van den Berg | C225-Machado s.n. (ESA) | AF260194 | AF267025 | AF263028 |
| Cattleya forbesii Lindl. | Brieger Coll. 2448 (ESA), W.E. Higgins 59 (FLAS 200709) | AY008617 (Brieger) | AY422405 (Higgins) | AY396102 (Higgins) |
| Cattleya harpophylla (Rchb.f.) Van den Berg | Brieger Coll. 6687 (ESA) | AF260199 | AF267030–1 | AF263802 |
| Cattleya intermedia Graham ex Hook. | Brieger Coll. 4095 (ESA) | AF260204 | AF267036 | AF263807 |
| Cattleya labiata Lindl. | Brieger Coll. 5487 (ESA) | AF008594 | AF267051 | AF263759 |
| Cattleya lawrenceana Rchb.f. | Brieger Coll. 3802 (ESA) | AF260208 | AF267041–2 | AF263811 |
| Cattleya lueddemanniana Rchb.f. | Brieger Coll. 3759 (ESA) | AF266744 | AF267052–3 | AF263816 |
| Cattleya maxima Lindl. | Unvouchered (Kew 1983-4362) | AY008631 | AY008456 | AY008460 |
| Cattleya mooreana Withner, D.Alison & Guenard | Unvouchered (Kew 1999-1599) | AF260216 | AF267055–6 | AF263760 |
| Cattleya pumila Hook. | Brieger Coll. 7794 (ESA) | AF260196 | AF267027 | AF263800 |
| Cattleya purpurata (Lindl. & Paxton) Van den Berg | Chase O-997 (K) | AY008641 | AF267024 | AF263797 |
| Cattleya rupestris (Lindl.) Van den Berg | van den Berg C33 (ESA) | AF260197 | AF267028 | AF263801 |
| Cattleya violacea (Kunth) Rolfe | Brieger Coll. 28495 (ESA) | AF260206 | AF267039 | AF263709 |
| Cattleya walkeriana Gardner | Brieger Coll. 1627 (ESA) | AF260205 | AF267037–8 | AF263808 |
| Cattleya wallisii (Linden ex Rchb.f.) Rchb.f. | Brieger Coll. 28787 (ESA) | AF260213 | AF267050 | AF263815 |
| Caularthron bilamellatum (Rchb.f.) R.E.Schultes | Brieger Coll. 3690 (ESA) | AF260173 | AF267001 | AF263780 |
| Chysis bractescens Lindl. | Chase O-436 (K) | AF260150 | AF266971 | AF263640 |
| Coelia triptera (Smith) G.Don ex Steud. | Chase O-324 (K) | AF260151 | AF266972 | AF263643 |
| Constantia cipoensis Pôrto & Brade | São Paulo B.G. s.n. (SP) | AF260193 | AF267023 | AF263796 |
| Dilomilis montana (Sw.) Summerh. | Chase O-206 (K) | AF260147 | AF266967 | AF263765 |
| Dimerandra emarginata (G.Mey.) Hoehne | Chase O-335 (K) | AF260179 | AF267008 | AF263784 |
| Dinema polybulbon (Sw.) Lindl. | Brieger Coll. 6052 (ESA) | AF260154 | AF266976–7 | AF263769 |
| Domingoa kienastii (Rchb.f.) Dressler | W.E. Higgins 225 (FLAS 198291) | AY008564 | AY422398 | AY396095 |
| Domingoa purpurea (Lindl.) Van den Berg & Soto Arenas | van den Berg C260 (K spirit) | AF266743 | AF266980 | AF263771 |
| Earina valida Rchb.f. | van den Berg C296 (Leiden 950080) | AF521077 | AY008448 | AY121741 |
| Encyclia adenocaula (La Llave & Lex.) Schltr. | W.E. Higgins 12 (FLAS 198274) | AY008526 | AY422414 | AY396111 |
| Encyclia cordigera (Kunth) Dressler | W.E. Higgins 24 (FLAS 198276) | AY008528 | AY422417 | AY396114 |
| Encyclia oncidioides (Lindl.) Schltr. | Brieger Coll. 5420 (ESA) | AF260184 | AF267013 | AF263788 |
| Encyclia tampensis (Lindl.) Small | W.E. Higgins 27 (FLAS 198277) | AY008529 | AY422418 | AY396115 |
| Epidendrum armeniacum (Lindl.) | Brieger Coll. 33081 (ESA) | AF260165 | AF266993 | AF263748 |
| Epidendrum schlechterianum Ames | Chase O-301 (K) | AF260172 | AF267000 | AF263779 |
| Epidendrum avicula (Lindl.) Dressler | Brieger Coll. 23319 (ESA) | AF260169 | AF266998 | AF263778 |
| Epidendrum campestre Lindl. | E.L. Borba 553 (UEC) | AF260174 | AF267002 | AF263781 |
| Epidendrum centradenia Rchb.f. | van den Berg C169 (K spirit) | AF260175 | AF267003 | AF263782 |
| Epidendrum ibaguense Lindl. | W.E. Higgins 60 (FLAS 198270) | AY008505 | AY422382 | AY396079 |
| Epidendrum magnoliae Muhl. | W.E. Higgins 244 (FLAS 198271) | AY008506 | AY422383 | AY396080 |
| Epidendrum pseudepidendrum Rchb.f. | van den Berg C4 (ESA) | AF260160 | AF266986 | AF263753 |
| Epidendrum tridactylum Lindl. | Brieger Coll. 15628 (ESA) | AF260164 | AF266692 | AF263775 |
| Guarianthe aurantiaca (Batem. ex Lindl.) Dressler & W.E.Higgins | Brieger Coll. 124 (ESA) | AF260209 | AF267043–4 | AF263812 |
| Guarianthe bowringiana (J.H.Veitch) Dressler & W.E.Higgins | Chase O-1174 (K) | AF260212 | AF267048–9 | AF263814 |
| Guarianthe skinneri (Batem.) Dressler & W.E.Higgins | Kew DNA bank MWC 6497* | AF260211 | AF267046–7 | AF263813 |
| Hagsatera brachycolumna (L.O.Williams) R.González | W.E. Higgins 229 (FLAS 198272) | AY008515 | AY422391 | AY396088 |
| Helleriella guerrerensis Dressler & Hágsater | van den Berg C172 (K spirit) | AF260142 | AF266961 | AF518029 |
| Homalopetalum pachyphyllum (L.O.Williams) Dressler | M. Soto 7640 (AMO) | AF260155 | AF266978–9 | AF263770 |
| Homalopetalum pumilio (Rchb.f.) Schltr. | W.E. Higgins 234 (FLAS 200730) | AY429389 | AY422392 | AY396089 |
| Isabelia pulchella (Kraenzl.) Van den Berg & M.W.Chase | Brieger Coll. 6367 (ESA) | AF260163 | AF266990–1 | AF263745 |
| Isabelia violacea (Lindl.) Schltr. | van den Berg C127 (ESA) | AF260168 | AF266997 | AF263777 |
| Isabelia virginalis Barb.Rodr. | Brieger Coll. 30243 (ESA) | AF260161 | AF266987 | AF263747 |
| Isochilus amparoanus Schltr. | Chase O-204 (K) | AF260143 | AF266962 | AF263762 |
| Isochilus major Cham. & Schltdl. | W.M. Whitten 91348 (FLAS) | AY008481 | AY422381 | AY396078 |
| Jacquiniella teretifolia Britton & P.Wilson | W.M. Whitten 97026 (FLAS) | AY008519 | AY422390 | AY396087 |
| Jaquiniella equitantifolia (Ames) Dressler | van den Berg C171 (K spirit) | AF260158 | AF266982–3 | AF263773 |
| Laelia anceps Lindl. | Chase O-998 (K) | AF260191 | AF267021 | AF263794 |
| Laelia autumnalis (La Llave & Lex.) Lindl. | Chase O-1314 (K) | AF260189 | AF267019 | AF263759 |
| Laelia furfuracea Lindl. | Chase 6410 (K) | AF260190 | AF267020 | AF263793 |
| Laelia lyonsii (Lindl.) L.O.Williams | Brieger Coll. 16846 (ESA) | AF260222 | AF267063 | AF263823 |
| Laelia rubescens Lindl. | Chase O-284 (K) | AY008575 | AY422401 | AY396098 |
| Laelia speciosa (Kunth) Schltr. | Chase O-6088 (K) | AF260188 | AF267018 | AF263792 |
| Laelia splendida (Schltr.) L.O.Williams | W.M. Whitten 93026 (FLAS) | AY008573 | AY422408 | AY396105 |
| Laelia undulata (Lindl.) L.O.Williams | Chase O-1251 (K) | AF260223 | AF267064–5 | AF263749 |
| Leptotes bicolor Lindl. | Brieger Coll. 1068 (ESA) | AF260185 | AF267014 | AF263789 |
| Loefgrenianthus blanche-amesiae (Loefgr.) Hoehne | São Paulo B.G. s.n. (SP) | AF260183 | AF267012 | AF263787 |
| Meiracyllium gemma Rchb.f. | M. Soto 8731 (AMO) | AF260153 | AF266974 | AF263767 |
| Meiracyllium trinasutum Rchb.f. | Chase O-202 (K) | AF260152 | AF266973 | AF263670 |
| Myrmecophila tibicinis (Batem.) Rolfe | Brieger Coll. 6128 (ESA) | AF260203 | AF267035 | AF263806 |
| Myrmecophila tibicinis (Batem.) Rolfe | Chase O-281 (K) | AF008581 | AY422402 | AY396099 |
| Nemaconia striata Lindl. | Chase 6178 (K) | AF260145 | AF266965 | AY121728 |
| Nemaconia striata Lindl. | W.E. Higgins 197 (FLAS 198268) | AY008484 | AY422380 | AY396077 |
| Neocogniauxia hexaptera (Cogn.) Schltr. | van den Berg C244 (K) | AF260148 | AF266968–9 | AF263766 |
| Nidema boothii (Lindl.) Schltr. | W.E. Higgins 192 (FLAS 198273) | AY008522 | AY422384 | AY396081 |
| Octomeria gracilis Lodd. ex Lindl. | Chase O-977 (K) | AF262911 | AF265526 | AF265484 |
| Orleanesia amazonica Barb.Rodr. | São Paulo B.G. 15936 (SP) | AF260176 | AF267004 | AF263755 |
| Polystachya galeata Rchb.f. | van den Berg C283 (K spirit) | AY008470 | AY008453 | AY008464 |
| Ponera exilis Dressler | M. Soto s.n. Paracho, Michoacán (AMO) | AF260144 | AF266963–4 | AF263763 |
| Prosthechea abbreviata (Schltr.) W.E.Higgins | Brieger Coll. 10092 (ESA) | AF260181 | AF267010 | AF263757 |
| Prosthechea aemula (Lindl.) W.E.Higgins | W.E. Higgins 17 (FLAS 198279) | AY008544 | AY422428 | AY396125 |
| Prosthechea citrina (La Llave & Lex.) W.E.Higgins | W.E. Higgins 54 (FLAS 198269) | AY008501 | AY422409 | AY396106 |
| Prosthechea cochleata (L.) W.E.Higgins | MBG 75-0658 (FLAS 198280) | AY008545 | AY422429 | AY396126 |
| Prosthechea glauca Knowles & Westc. | W.E. Higgins 176 (FLAS 200722) | AY429410 | AY422433 | AY396130 |
| Prosthechea mariae (Ames) W.E.Higgins | Chase O-158 (K) | AF260192 | AF267022 | AF263795 |
| Pseudolaelia canaanensis Ruschi | Brieger Coll. 16205 (ESA) | AF260167 | AF266995–6 | AF263746 |
| Pseudolaelia vellozicolla (Hoehne) Pôrto & Brade | São Paulo B.G. 13362 (SP) | AF260166 | AF266994 | AY121748 |
| Psychilis krugii (Bello) Sauleda | Chase O-1062 (K) | AF260157 | AF266891 | AF263772 |
| Psychilis macconnelliae Sauleda | W.E. Higgins 53 (FLAS 198287) | AY008568 | AY422394 | AY396091 |
| Restrepiella ophiocephala (Lindl.) Garay & Dunst. | Chase O-291 (K) | AF262909 | AF265523 | AF265482 |
| Rhyncholaelia digbyana (Lindl.) Schltr. | Chase O-331 (K) | AF260221 | AF267062 | AF263822 |
| Rhyncholaelia glauca (Lindl.) Schltr. | van den Berg C30 (ESA), W.E. Higgins 134 (FLAS) | AY008584 (van den Berg) | AY422404 (Higgins) | AY396101 (Higgins) |
| Scaphyglottis bidentata (Lindl.) Dressler | Brieger Coll. 1253 (ESA) | AF260162 | AF266988–9 | AF263774 |
| Scaphyglottis crurigera (Lindl.) Ames & Correll | Chase O-336 (K) | AF260180 | AF267009 | AF263785 |
| Scaphyglottis cuniculata (Schltr.) Dressler | W.M. Whitten 96051 (FLAS) | AY008551 | AY422387 | AY396084 |
| Scaphyglottis imbricata (Lindl.) Dressler | W.M. Whitten (FLAS 97039) | AY429388 | AY422386 | AY396083 |
| Scaphyglottis modesta (Rchb.f.) Schltr. | Brieger Coll. 2756 (ESA) | AF260159 | AF266984–5 | AF263752 |
| Scaphyglottis pulchella (Schltr.) L.O.Williams | W.M. Whitten 208 (FLAS) | AY174740 | AY422385 | AY396082 |
| Scaphyglottis punctulata (Rchb.f.) C.Schweinf. | Chase O-299 (K) | AF260182 | AF267011 | AF263786 |
| Stelis argentata Lindl. | Kew 1984-7410 (K spirit 60886) | AF262878 | AF265503 | AF265464 |
| Tetramicra elegans (Ham.) Cogn. | W.E. Higgins 160 (FLAS 198285) | AY008566 | AY422397 | AY396094 |
* This sample was originally taken from a plant in the living collection (Kew 1986-04870).