Table 1.
Distribution and classification of papillae and trichomes
| Type of papilla | |||||
| Taxon | Accession no. | Column | Anther cap | Labellum | Type of labellar trichome |
| Maxillaria acuminata Lindl. | MMB14 | c, o | – | ||
| M. acutifolia Lindl. | MMB64 | o | o | o, cl | – |
| M. buchtienii Schltr. | KLD199813 | c | c | o | s (3–4 cells) |
| M. camaridii Rchb.f. | KLD199920 | c | c | c | mu |
| M. cerifera Barb. Rodr. | ED95–70 | c | – | ||
| M. chartacifolia Ames & C. Schweinf. | MMA18 | o | o | – | – |
| M. chlorantha Lindl. | S0000079 | o | s (3–4 cells) | ||
| M. chrysantha Barb. Rodr. | S19940012 | c | c | – | – |
| M. coccinea (Jacq.) L.O. Williams ex Hodge | KLD199803, S19950015 | – | c | c | – |
| M. cogniauxiana Hoehne | KLD199701 | c | – | ||
| M. cucullata Lindl. | GXXF012515 | – | – | ||
| M. dalessandroi Dodson | KLD199908 | o | m | ||
| M. densa Lindl. | S19970029 | – | c | c | – |
| M. desvauxiana Rchb.f. | KLD199804 | c | – | ||
| M. discolor (Lodd. ex Lindl.) Rchb.f. | S19990261, MMB62 | c | c | c, o | m |
| M. elatior Rchb.f. | KLDX19971, KLD200005 | c | – | ||
| M. elegantula Rolfe | S19980054 | c, v | o | m | |
| M. ferdinandiana Barb. Rodr. | MMC17 | o, v | c,o | c, v | – |
| M. fractiflexa Rchb.f. | S19980052 | c | c | c, v | s (3–4 cells) |
| M. fucata Rchb.f. | KLD199916, KLD199933 | o | m | ||
| M. cf. gracilis Lodd. | S19980072 | c | c | c, o | s (3–4 cells) |
| M. hedwigae Hamer & Dodson | BSNS089 | f, v | – | ||
| M. hematoglossa A. Rich & Galeottii | KLD198601, KLD199811,KLD199704, S19920439,S19910275, KLD1998100,E19191019, KLD199602,S199930276, KLD1998101 | c | c, o | – | – |
| M. hillsii Dodson | S19990292 | o | m | ||
| M. huancabambe (Kraenzl.) C. Schweinf. | S20010484 | c, o | |||
| M. imbricata Barb. Rodr. | MMA21 | c | c, o | ||
| M. infausta Rchb.f. | MMA13 | c, o | c, o, v | c | – |
| M. irrorata Rchb.f. | KLD199824 | c | c, v | o | m |
| M. jenischiana (Rchb.f.) Garay & C. Schweinf. | S19980077 | c, o | c, o | c | – |
| M. jocunda Lehm. & Kraenzl. | S19990297 | – | c | o | m |
| M. johniana Kraenzl. | MMA41 | o | m | ||
| M. cf. lehmanii Rchb.f. | KLD199911 | o | m | ||
| M. lepidota Lindl. | S19950277 | o with glands | s (2–3 cells) | ||
| M. lexarzana Soto Arenas & F. Chiang | KLD199102, KLD199706 | – | c | – | – |
| M. cf. lilliputana D.E. Benn. & E.A. Christenson | S19980062 | c, v | – | – | m |
| M. lindleyana Schltr. | KLD199806 | c | c | o | – |
| M. longissima Lindl. | S20010485 | o | m | ||
| M. meleagris Lindl. | KLD199603, KLD199604,KLD199919, S20000208 | c | c | c | – |
| M. minuta Cogn. | S19960283 | – | c | c | – |
| M. cf. minuta Cogn. | S19980011 | – | c | c | – |
| M. molitor Rchb.f. | KLD199828, KLD199929 | o | m | ||
| M. moralesii Carnevali & Atwood | BSNS number unknown | – | – | c, o, cl | – |
| M. mosenii Kraenzl. | S19970030 | c | – | ||
| M. mosenii Kraenzl. var. hatschbachii (Schltr.) Hoehne | S19990245, S19980051 | c | c | c | – |
| M. notylioglossa Rchb.f. | ED97‐16, S20030488 | o, v | o | c, o | – |
| M. cf. notylioglossa Rchb.f. | S19990147 | c, v | c | c, o | – |
| M. nutans Lindl. | KLD199909 | o | m | ||
| M. ochroleuca Lodd. ex Lindl. | KLD199714 | o | s (3–4 cells) | ||
| M. oreocharis Schltr. | S19980012 | – | c | c | – |
| M. parviflora (Poepp. & Endl.) Garay | MMC8 | c | – | c | – |
| M. picta Hook. | KLD199917 | v | – | ||
| M. plebeja Rchb.f. | KLD2000001 | – | – | c | – |
| M. ponerantha Rchb.f. | MMC9 | c | c, v | – | |
| M. procurrens Lindl. | KLD199812 | – | – | c | – |
| M. pseudoreichenheimiana Dodson | MMC16 | c, v | o, v | o | s (2 cells) |
| M. pulchra (Schltr.) L.O. Williams | S19910274 | c | c, v | mu | |
| M. pumila Hook. | MMB60 | c, o | o | c, o | – |
| M. reichenheimiana Endres & Rchb.f. | MMA50 | c, v | v | o | s (2 cells) |
| M. rufescens Lindl. | BSNS532, KLDX20001,S19980055, BSNS230 | c | c | o ,cl | – |
| M. sanderiana Rchb.f. | KLD199815, KLD199816 | o | m | ||
| M. schunkeana Campacci & Kautsky | S19980056 | – | c | c | – |
| M. seidelii Pabst | S19970500 | c, o | c, o, v | c | – |
| M. cf. setigera Lindl. | S19980057 | c with simple 2–3celled trichomes | c | o | m (2–3 cells) |
| M. sophronitis (Rchb.f.) Garay | S19950281 | c | – | ||
| M. striata Rolfe | KLD199910 | v | |||
| M. tenuibulba E.A. Christenson | MMB16 | o | o | c, o, cl | – |
| M. tenuifolia Lindl. | S00000282, KLDX20002,MMA48 | c, v | c, v | v | – |
| M. tenuis C. Schweinf. | KLD199923 | s | |||
| M. cf. triloris E. Morren | KLD199707 | o | s (2–3 cells) | ||
| M. uncata Lindl. | S20000209 | – | c | c | – |
| M. variabilis Bateman ex Lindl. | XX012504, XX012505,MMA28, KLD199105,KLD199714 | c, v | c | c, v | – |
| M. vernicosa Barb. Rodr. | G1960002066, S20010100 | c | c | c | – |
| M. villosa (Barb. Rodr.) Cogn. | S19990262 | c | c,v | o | s (3–5 cells) |
| M. violaceopunctata Rchb.f. | S19990263 | – | c | o | s (4–6 cells) |
| M. vitelliniflora Barb. Rodr. | MMB12 | c, o | c, o | c | – |
Types of papillae: c = conical; cl = clavate; f = fusiform; – = absent (i.e. glabrous); o = obpyriform; v = villiform. Types of trichome: m = moniliform; mu = multiseriate; s = simple; – = absent.