Voucher information and GenBank accession numbers for all taxa used in this study
| Species | Country | Voucher information (herbarium) | ITS | matK + trnK | trnL-F | ycf1 |
|---|---|---|---|---|---|---|
| Cryptarrhena lunata R. Br. | Costa Rica | Whitten 98000 (FLAS) | AY870081 | AY869982 | AY869894 | EU123733 |
| Daiotyla albicans (Rolfe) Dressler | Panama | Whitten 1932 (FLAS) | AY870016 | AY869917 | AY869831 | EU123734 |
| Dichaea acroblephara Schltr. 1 | Costa Rica | Pupulin 4795 (USJ-L) | EU123545 | EU123611 | EU123677 | EU123735 |
| D. acroblephara Schltr. 2 | Panama | Whitten 2669 (FLAS) | EU123546 | NA | NA | NA |
| D. acroblephara Schltr. 3 | Panama | Blanco 2994 (FLAS) | EU123547 | NA | NA | NA |
| D. amparoana Schltr. | Costa Rica | Bogarín 679 (USJ-L) | EU123548 | EU123612 | EU123678 | NA |
| D. ancoraelabia C.Schweinf. 1 | Ecuador | Neubig 1–2004 (FLAS) | EU123549 | EU123613 | NA | EU123736 |
| D. ancoraelabia C.Schweinf. 2 | Ecuador | Whitten 2542 (FLAS) | EU123550 | EU123614 | EU123679 | EU123737 |
| D. caveroi D.E. Benn. & Christenson | Ecuador | Whitten 2417 (FLAS) | EU123551 | EU123615 | EU123680 | EU123738 |
| D. cryptarrhena Rchb.f. ex Kraenzl. 1 | Costa Rica | Pupulin 4436 (USJ-L) | EU123556 | EU123620 | EU123685 | EU123743 |
| D. cryptarrhena Rchb.f. ex Kraenzl. 2 | Panama | Whitten 2610 (FLAS) | EU123557 | EU123621 | EU123686 | EU123744 |
| D. dammeriana Kraenzl. | Costa Rica | Bogarín & León-Páez 197 (USJ-L) | EU123558 | EU123622 | EU123687 | EU123745 |
| D. ecuadorensis Schltr. 1 | Ecuador | Whitten 1799 (FLAS) | EU123559 | EU123623 | NA | EU123746 |
| D. ecuadorensis Schltr. 2 | Ecuador | Whitten 2416 (FLAS) | EU123560 | EU123624 | EU123688 | NA |
| D. eligulata Folsom | Costa Rica | Pupulin 1094 (USJ-L) | EU123561 | EU123625 | EU123689 | EU123747 |
| D. elliptica Dressler & Folsom 1 | Costa Rica | Pupulin 5133 (USJ-L) | EU123562 | NA | NA | NA |
| D. elliptica Dressler & Folsom 2 | Costa Rica | Pupulin 4945 (USJ-L) | EU123563 | EU123626 | EU123690 | EU123748 |
| D. fragrantissima Folsom ssp. eburnea Dressler & Pupulin 1 | Costa Rica | Blanco 513 (USJ-L) | EU123564 | EU123627 | NA | EU123749 |
| D. fragrantissima Folsom ssp. eburnea Dressler & Pupulin 2 | Costa Rica | Pupulin 4601 (USJ-L) | EU123565 | EU123628 | EU123691 | EU123750 |
| D. glauca (Sw.) Lindl. 1 | Costa Rica | Pupulin 4734 (USJ-L) | EU123566 | EU123629 | EU123692 | EU123751 |
| D. glauca (Sw.) Lindl. 2 | Mexico | Neubig 9–2006 (FLAS) | EU123567 | EU123630 | EU123693 | EU123752 |
| D. globosa Dressler & Pupulin 1 | Costa Rica | Pupulin 4517 (USJ-L) | EU123568 | EU123631 | EU123694 | EU123753 |
| D. globosa Dressler & Pupulin 2 | Panama | Neubig 2–2005 (FLAS) | EU123569 | EU123632 | EU123695 | EU123754 |
| D. hystricina Rchb.f. 1 | Costa Rica | Pupulin 3925 (USJ-L) | EU123570 | EU123633 | EU123696 | EU123755 |
| D. hystricina Rchb.f. 2 | Costa Rica | Pupulin 2925 (USJ-L) | EU123571 | EU123634 | EU123697 | EU123756 |
| D. hystricina Rchb.f. 3 | Costa Rica | Pupulin 4320 (USJ-L) | EU123572 | EU123635 | EU123698 | EU123757 |
| D. cf. lagotis Rchb.f. 1 | Ecuador | Whitten 1801 (FLAS) | EU123552 | EU123616 | EU123681 | EU123739 |
| D. cf. lagotis Rchb.f. 2 | Ecuador | Whitten 2477 (QCA) | EU123553 | EU123617 | EU123682 | EU123740 |
| D. cf. lagotis Rchb.f. 3 | Ecuador | Whitten 2523 (QCA) | EU123554 | EU123618 | EU123683 | EU123741 |
| D. lankesteri Ames 1 | Panama | Blanco 2993 (FLAS) | EU123573 | EU123636 | NA | EU123758 |
| D. lankesteri Ames 2 | Costa Rica | Pupulin 3030 (USJ-L) | EU123574 | EU123637 | EU123699 | EU123759 |
| D. longa Schltr. 1 | Ecuador | Whitten 2684 (FLAS) | EU123575 | EU123638 | NA | EU123760 |
| D. longa Schltr. 2 | Ecuador | Whitten 2685 (FLAS) | EU123576 | EU123639 | EU123700 | EU123761 |
| D. morrisii Fawc. & Rendl. 1 | Panama | Neubig 3–2004 (FLAS) | EU123577 | EU123640 | EU123701 | EU123762 |
| D. morrisii Fawc. & Rendl. 2 | Ecuador | Neubig 8–2006 (FLAS) | NA | EU123641 | EU123702 | EU123763 |
| D. muyuyacensis Dodson 1 | Panama | Neubig 5–2004 (FLAS) | EU123578 | EU123642 | EU123703 | EU123764 |
| D. muyuyacensis Dodson 2 | Ecuador | Whitten 1512 (FLAS) | EU123579 | EU123643 | NA | EU123765 |
| D. neglecta Schltr. | Mexico | Higgins 1005 (FLAS) | EU123580 | EU123644 | EU123704 | EU123766 |
| D. obovatipetala Folsom 1 | Costa Rica | Pupulin 5023 (USJ-L) | EU123581 | EU123645 | EU123705 | EU123767 |
| D. obovatipetala Folsom 2 | Costa Rica | Pupulin 4202 (USJ-L) | EU123582 | EU123646 | EU123706 | EU123768 |
| D. oxyglossa Schltr. | Costa Rica | Bogarín & León-Páez 186 (USJ-L) | EU123583 | EU123647 | EU123707 | EU123769 |
| D. panamensis Lindl. 1 | Costa Rica | Pupulin 3667 (USJ-L) | EU123584 | EU123648 | EU123708 | EU123770 |
| D. panamensis Lindl. 2 | Ecuador | Whitten 2348 (FLAS) | EU123585 | EU123649 | EU123709 | EU123771 |
| D. panamensis Lindl. 3 | Panama | Whitten 2556 (FLAS) | EU123586 | EU123650 | NA | EU123772 |
| D. pendula (Aubl.) Cogn. | Costa Rica | Pupulin 3024 (USJ-L) | EU123587 | EU123651 | EU123710 | EU123773 |
| D. poicillantha Schltr. 1 | Panama | Blanco 2981 (FLAS) | EU123588 | EU123652 | EU123711 | EU123774 |
| D. poicillantha Schltr. 2 | Costa Rica | Pupulin 4662 (USJ-L) | EU123589 | EU123653 | EU123712 | EU123775 |
| D. poicillantha Schltr. 3 | Panama | Whitten 2557 (FLAS) | EU123590 | EU123654 | EU123713 | EU123776 |
| D. potamophila Folsom | Peru | Neubig 4–2004 (FLAS) | EU123591 | EU123655 | EU123714 | EU123777 |
| D. richii Dodson 1 | Ecuador | Whitten 1526 (FLAS) | EU123592 | NA | NA | NA |
| D. richii Dodson 2 | Ecuador | Whitten 2429 (QCA) | EU123593 | EU123656 | EU123715 | NA |
| D. riopalenquensis Dodson | Ecuador | Whitten 2731 (FLAS) | EU123594 | EU123657 | EU123716 | EU123778 |
| D. rubroviolacea Dodson | Ecuador | Whitten 2945 (FLAS) | EU123595 | EU123658 | EU123717 | EU123779 |
| D. sarapiquinsis Folsom | Costa Rica | Pupulin 4856 (USJ-L) | EU123596 | EU123659 | EU123718 | EU123780 |
| D. squarrosa Lindl. 1 | Costa Rica | Pupulin 5127 (USJ-L) | EU123604 | EU123667 | EU123726 | EU123788 |
| D. squarrosa Lindl. 2 | Mexico | Neubig 4–2006 (FLAS) | EU123603 | EU123666 | EU123725 | EU123787 |
| D. trichocarpa (Sw.) Lindl. | Costa Rica | Bogarín 173 (USJ-L) | EU123605 | EU123668 | EU123727 | EU123789 |
| D. trulla Rchb.f. 1 | Costa Rica | Whitten 2096 (USJ-L) | EU123607 | EU123670 | EU123729 | EU123791 |
| D. trulla Rchb.f. 2 | Ecuador | Whitten 2474 (QCA) | EU123608 | EU123671 | EU123730 | EU123792 |
| D. trulla Rchb.f. 3 | Ecuador | Whitten 2475 (FLAS) | EU123606 | EU123669 | EU123728 | EU123790 |
| D. tuerckheimii Schltr. | Costa Rica | Whitten 2097 (USJ-L) | EU123609 | EU123672 | EU123731 | EU123793 |
| D. cf. violacea Folsom | Panama | Neubig 6–2004 (FLAS) | EU123555 | EU123619 | EU123684 | EU123742 |
| D. viridula Pupulin | Costa Rica | Pupulin 4752 (USJ-L) | EU123610 | EU123673 | EU123732 | EU123794 |
| D. sp. 1 | Ecuador | Whitten 2709 (FLAS) | EU123597 | EU123660 | EU123719 | EU123781 |
| D. sp. 2 | Ecuador | Whitten 2434 (QCA) | EU123598 | EU123661 | EU123720 | EU123782 |
| D. sp. 3 | Ecuador | Whitten 2435 (QCA) | EU123599 | EU123662 | EU123721 | EU123783 |
| D. sp. 4 | Ecuador | Whitten 2476 (QCA) | EU123600 | EU123663 | EU123722 | EU123784 |
| D. sp. nov. 1 | Ecuador | Neubig 6–2006 (FLAS) | EU123601 | EU123664 | EU123723 | EU123785 |
| D. sp. nov. 2 | Ecuador | Whitten 2329 (FLAS) | EU123602 | EU123665 | EU123724 | EU123786 |
| Heterotaxis violaceopunctata (Rchb.f.) F. Barros | Brazil | Whitten 2294 (FLAS) | DQ210308 | DQ210807 | NA | EU123795 |
| H. violaceopunctata (Rchb.f.) F. Barros | Suriname | Whitten 1980 (FLAS) | NA | NA | AY869911 | NA |
| Huntleya wallisii (Rchb.f) Rolfe | Ecuador | Whitten 88026 (FLAS) | AY870074 | EU123674 | AY869887 | EU123796 |
| Promenaea stapelioides (Link & Otto) Lindl. | Brazil | Whitten 94102 (FLAS) | AY870101 | AY870002 | AY869905 | EU123797 |
| Warrea warreana (Lodd. ex Lindl.) C. Schweinf. | Costa Rica | Whitten 1752 (FLAS) | AF239321 | EU123675 | AF239513 | EU123798 |
| Zygopetalum maxillare Lodd. | Brazil | Whitten 94103 (FLAS) | AY870095 | EU123676 | AY869899 | EU123799 |
Vouchers are deposited at FLAS (Florida Museum of Natural History Herbarium), USJ-L (University of Costa Rica, San José, Lankester Botanical Garden) and QCA (Pontifica Universidad Católica del Ecuador, Quito).