| Symbol | Scientific name | Common name/Accepted name (for synonyms) | Family |
| MIBOR | Mibora Adans. | sandgrass | Poaceae
|
| MIAS2 | Micarea assimilata (Nyl.) Coppins | dot lichen | Micareaceae
|
| MIBA6 | Micarea bauschiana (Korber) V. Wirth & Vezda | Bausch's dot lichen | Micareaceae
|
| MIBO4 | Micarea botryoides (Nyl.) Coppins | dot lichen | Micareaceae
|
| MICH3 | Micarea chlorostictica (Tuck.) R. C. Harris | dot lichen | Micareaceae
|
| MICI2 | Micarea cinerea (Schaerer) Hedl. | dot lichen | Micareaceae
|
| MICL6 | Micarea clavopycnidiata Brodo & Tonsberg | Szczawinskia tsugae | Uncertain Lichen Family
|
| MICR2 | Micarea crassipes (Th. Fr.) Coppins | Helocarpon crassipes | Micareaceae
|
| MIDE13 | Micarea denigrata (Fr.) Hedl. | dot lichen | Micareaceae
|
| MIEL3 | Micarea elachista (Korber) Coppins & R. Sant. | dot lichen | Micareaceae
|
| MIEN | Micarea endocyanea (Tuck. ex Willey) R. C. Harris | dot lichen | Micareaceae
|
| MIER2 | Micarea erratica (Korber) Hertel, Rambold & Pietschmann | erratic dot lichen | Micareaceae
|
| MIGE5 | Micarea gelatinosa (Florke) Brodo | Trapeliopsis gelatinosa | Trapeliaceae
|
| MIGL12 | Micarea globularis (Ach. ex Nyl.) Hedl. | Micarea misella | Micareaceae
|
| MIGL11 | Micarea globulosella (Nyl.) Coppins | globe dot lichen | Micareaceae
|
| MIHE3 | Micarea hedlundii Coppins | Hedlund's dot lichen | Micareaceae
|
| MIIN3 | Micarea incrassata Hedl. | dot lichen | Micareaceae
|
| MILI9 | Micarea lignaria (Ach.) Hedl. | dot lichen | Micareaceae
|
| MILI10 | Micarea lithinella (Nyl.) Hedl. | dot lichen | Micareaceae
|
| MILU3 | Micarea lutulata (Nyl.) Coppins | dot lichen | Micareaceae
|
| MIME3 | Micarea melaena (Nyl.) Hedl. | dot lichen | Micareaceae
|
| MIME4 | Micarea melanobola (Nyl.) Coppins | dot lichen | Micareaceae
|
| MIMI18 | Micarea misella (Nyl.) Hedl. | dot lichen | Micareaceae
|
| MINI5 | Micarea nitschkeana (J. Lahm ex Rabenh.) Harm. | Nitschke's dot lichen | Micareaceae
|
| MIPE9 | Micarea peliocarpa (Anzi) Coppins & R. Sant. | dot lichen | Micareaceae
|
| MIPE11 | Micarea perparvula (Nyl.) Coppins & Printzen | dot lichen | Micareaceae
|
| MIPO6 | Micarea populina (Mull. Arg. ex Nyl.) R. Anderson & M. P. Carmer | Lecidea populina | Lecideaceae
|
| MIPR8 | Micarea prasina Fr. | dot lichen | Micareaceae
|
| MIRH2 | Micarea rhabdogena (Norm.) Hedl. | dot lichen | Micareaceae
|
| MISU10 | Micarea subviolescens (H. Magn.) Coppins | dot lichen | Micareaceae
|
| MISY2 | Micarea sylvicola (Flotow) Vezda & V. Wirth | dot lichen | Micareaceae
|
| MITE9 | Micarea ternaria (Nyl.) Vezda | dot lichen | Micareaceae
|
| MITR8 | Micarea trisepta (Hellbom) Wetmore | Micarea peliocarpa | Micareaceae
|
| MITU2 | Micarea tuberculata (Sommerf.) R. Anderson | tubercle dot lichen | Micareaceae
|
| MITU3 | Micarea turfosa (A. Massal.) Du Rietz | dot lichen | Micareaceae
|
| MIVI9 | Micarea violacea (Crouan ex Nyl.) Hedl. | Micarea peliocarpa | Micareaceae
|
| MIVI10 | Micarea viridescens (Schrader) Brodo | Trapeliopsis viridescens | Trapeliaceae
|
| MIVU | Micarea vulpinaris (Nyl.) Muhr | dot lichen | Micareaceae
|
| MICAR2 | Micarea Fr. | dot lichen | Micareaceae
|
| MICH4 | Michelia champaca L. | michelia | Magnoliaceae
|
| MIDO4 | Michelia doltsopa Buch.-Ham. ex DC. | sweet michelia | Magnoliaceae
|
| MICHE2 | Michelia L. | michelia | Magnoliaceae
|
| MIAN3 | Micheliella anisata (Sims) Briq. | Collinsonia serotina | Lamiaceae
|
| MIVE4 | Micheliella verticillata (Baldw.) Briq. | Collinsonia verticillata | Lamiaceae
|
| MIAF | Miconia affinis DC. | saquiyac | Melastomataceae
|
| MICA20 | Miconia calvescens DC. | velvet tree | Melastomataceae
|
| MIFO | Miconia foveolata Cogn. | Puerto Rico johnnyberry | Melastomataceae
|
| MIIM | Miconia impetiolaris (Sw.) D. Don ex DC. | camasey de costilla | Melastomataceae
|
| MILA8 | Miconia laevigata (L.) D. Don | smooth johnnyberry | Melastomataceae
|
| MILA10 | Miconia ?lanata (DC.) Triana | hairy johnnyberry | Melastomataceae
|
| MIMI16 | Miconia microcarpa DC. | Miconia affinis | Melastomataceae
|
| MIMI3 | Miconia mirabilis (Aubl.) L.O. Williams | camasey cuatrocanales | Melastomataceae
|
| MIOT | Miconia ottoschulzii Urban & Ekman | Graffenrieda ottoschulzii | Melastomataceae
|
| MIPA7 | Miconia pachyphylla Cogn. | camasey racimoso | Melastomataceae
|
| MIPR3 | Miconia prasina (Sw.) DC. | granadillo bobo | Melastomataceae
|
| MIPU9 | Miconia punctata (Desr.) D. Don ex DC. | auquey | Melastomataceae
|
| MIPY2 | Miconia pycnoneura Urban | ridge johnnyberry | Melastomataceae
|
| MIRA2 | Miconia racemosa (Aubl.) DC. | camasey felpa | Melastomataceae
|
| MIRU4 | Miconia rubiginosa (Bonpl.) DC. | peralejo | Melastomataceae
|
| MISE2 | Miconia serrulata (DC.) Naud. | jau jau | Melastomataceae
|
| MISI2 | Miconia sintenisii Cogn. | mountain johnnyberry | Melastomataceae
|
| MISP6 | Miconia splendens (Sw.) Griseb. | | Melastomataceae
|
| MISU3 | Miconia subcorymbosa Britt. | forest johnny berry | Melastomataceae
|
| MITE4 | Miconia tetrandra (Sw.) D. Don | rajador | Melastomataceae
|
| MITE5 | Miconia tetrastoma Naud. | graceful johnny berry | Melastomataceae
|
| MITH4 | Miconia theaezans (Bonpl.) Cogn. | | Melastomataceae
|
| MITH | Miconia thomasiana DC. | camasey tomaso | Melastomataceae
|
| MIVI8 | Miconia virescens (Vahl) Triana | Miconia laevigata | Melastomataceae
|
| MICON | Miconia Ruiz & Pav�n | johnnyberry | Melastomataceae
|
| MILO4 | Micrampelis lobata (Michx.) Greene | Echinocystis lobata | Cucurbitaceae
|
| MIMI20 | Micrandra minor Benth. | micrandra | Euphorbiaceae
|
| MICRA3 | Micrandra Benth. | micrandra | Euphorbiaceae
|
| MIGL6 | Micranthemum glomeratum (Chapman) Shinners | manatee mudflower | Scrophulariaceae
|
| MIMI6 | Micranthemum micranthemoides (Nutt.) Wettst. | Nuttall's mudflower | Scrophulariaceae
|
| MIUM | Micranthemum umbrosum (J.F. Gmel.) Blake | shade mudflower | Scrophulariaceae
|
| MICRA | Micranthemum Michx. | mudflower | Scrophulariaceae
|
| MIAR5 | Micranthes arnoglossa Small | Saxifraga oregana | Saxifragaceae
|
| MIBI11 | Micranthes bidens Small | Saxifraga integrifolia | Saxifragaceae
|
| MIBR10 | Micranthes brachypus Small | Saxifraga oregana | Saxifragaceae
|
| MICA13 | Micranthes careyana (Gray) Small | Saxifraga careyana | Saxifragaceae
|
| MICA11 | Micranthes caroliniana (Gray) Small | Saxifraga caroliniana | Saxifragaceae
|
| MIFR6 | Micranthes franciscana Small | Saxifraga rhomboidea | Saxifragaceae
|
| MILA11 | Micranthes lata Small | Saxifraga occidentalis | Saxifragaceae
|
| MILY2 | Micranthes lyallii (Engl.) Small | Saxifraga lyallii ssp. lyallii | Saxifragaceae
|
| MIMI7 | Micranthes micranthidifolia (Haw.) Small | Saxifraga micranthidifolia | Saxifragaceae
|
| MIMO4 | Micranthes montana Small | Saxifraga nidifica var. nidifica | Saxifragaceae
|
| MINI4 | Micranthes nivalis (L.) Small | Saxifraga nivalis | Saxifragaceae
|
| MIOC | Micranthes occidentalis (S. Wats.) Small | Saxifraga occidentalis | Saxifragaceae
|
| MIOD2 | Micranthes odontoloma (Piper) W.A. Weber | Saxifraga odontoloma | Saxifragaceae
|
| MIOR2 | Micranthes oregana (T.J. Howell) Small | Saxifraga oregana | Saxifragaceae
|
| MIPE4 | Micranthes pensylvanica (L.) Haw. | Saxifraga pensylvanica | Saxifragaceae
|
| MIRH | Micranthes rhomboidea (Greene) Small | Saxifraga rhomboidea | Saxifragaceae
|
| MISA2 | Micranthes saximontana (E. Nels.) Small | Saxifraga occidentalis | Saxifragaceae
|
| MITE3 | Micranthes tennesseensis Small | Saxifraga careyana | Saxifragaceae
|
| MITE7 | Micranthes texana (Buckl.) Small | Saxifraga texana | Saxifragaceae
|
| MIVI7 | Micranthes virginiensis (Michx.) Small | Saxifraga virginiensis var. virginiensis | Saxifragaceae
|
| MIQU | Microcala quadrangularis (Lam.) Griseb. | Cicendia quadrangularis | Gentianaceae
|
| MIAH | Microcalicium ahlneri Tibell | | Microcaliciaceae
|
| MIAR7 | Microcalicium arenarium (Hampe ex A. Massal.) Tibell | | Microcaliciaceae
|
| MIDI9 | Microcalicium disseminatum (Ach.) Vainio | | Microcaliciaceae
|
| MISU8 | Microcalicium subpedicellatum (Schaerer) Tibell | Microcalicium disseminatum | Microcaliciaceae
|