Associated organism genera: Maackia [17 taxa], Maba [17 taxa], Mabea [2 taxa], Macadamia [31 taxa], Macaranga [42 taxa], Macbridella [4 taxa], Machaerium [91 taxa], Machilus [13 taxa], Maclura [60 taxa], Macrachaenium [3 taxa], Macrobrachium [4 taxa], Macrocatalpa [1 taxon], Macrocentrus [1 taxon], Macrocystidia [6 taxa], Macrolepiota [1 taxon], Macrolobium [3 taxa], Macropanax [1 taxon], Macrophoma [36 taxa], Macrophomina [4 taxa], Macroptilium [163 taxa], Macropus [186 taxa], Macrorhynchus [3 taxa], Macroscepis [6 taxa], Macrosiphoniella [1 taxon], Macrosiphum [1 taxon], Macrosporium [11 taxa], Macrotomia [1 taxon], Macrotyloma [50 taxa], Madhuca [32 taxa], Madia [17 taxa], Maerua [48 taxa], Maesa [78 taxa], Maesobotrya [2 taxa], Maesopsis [2 taxa], Magnaporthe [1 taxon], Magnolia [208 taxa], Magydaris [2 taxa], Mahonia [185 taxa], Maianthemum [63 taxa], Majorana [3 taxa], Malabaila [6 taxa], Malacaria [7 taxa], Malache [4 taxa], Malachium [2 taxa], Malachra [45 taxa], Malacosoma [1 taxon], Malanea [6 taxa], Malcolmia [8 taxa], Mallotus [60 taxa], Malope [1 taxon], Malouetia [6 taxa], Malpighia [34 taxa], Malus [2031 taxa], Malva [196 taxa], Malvalthaea [1 taxon], Malvastrum [64 taxa], Malvaviscus [17 taxa], Malvella [1 taxon], Mammaria [4 taxa], Mammea [37 taxa], Mammillaria [1 taxon], Manaosella [2 taxa], Manaustrum [17 taxa], Mandevilla [30 taxa], Mandora [2 taxa], Mandragora [1 taxon], Manduca [2 taxa], Manettia [3 taxa], Mangifera [1200 taxa], Manginella [13 taxa], Manginula [7 taxa], Manglietia [1 taxon], Manihot [302 taxa], Manilkara [169 taxa], Manisuris [5 taxa], Manotes [3 taxa], Mansonia [2 taxa], Mantisalca [1 taxon], Mapania [2 taxa], Mappia [5 taxa], Maprounea [2 taxa], Maranta [38 taxa], Marantochloa [4 taxa], Marasmiellus [17 taxa], Marasmius [26 taxa], Marattia [9 taxa], Maravalia [1 taxon], Marceloa [19 taxa], Marcgravia [15 taxa], Marchandiomyces [8 taxa], Marchantia [12 taxa], Mariannaea [2 taxa], Mariscus [20 taxa], Markhamia [16 taxa], Marlierea [1 taxon], Marlothia [1 taxon], Maroga [1 taxon], Marrubium [199 taxa], Marsdenia [14 taxa], Marsilea [18 taxa], Marsipococcus [1 taxon], Marsippospermum [19 taxa], Marssonina [3 taxa], Martes [6 taxa], Marthamyces [7 taxa], Martinezia [1 taxon], Martiusia [1 taxon], Martynia [8 taxa], Mascagnia [5 taxa], Masoniomyces [1 taxon], Massaria [1 taxon], Massarina [5 taxa], Massonia [2 taxa], Mastichodendron [28 taxa], Mataiva [1 taxon], Matayba [126 taxa], Matelea [4 taxa], Matisia [3 taxa], Matricaria [25 taxa], Matteuccia [2 taxa], Matthiola [24 taxa], Maughania [1 taxon], Maurandya [2 taxa], Mauria [3 taxa], Mauritia [25 taxa], Maurodothina [6 taxa], Maxillaria [6 taxa], Maximiliana [1 taxon], Maytenus [123 taxa], Mazosia [845 taxa], Mazus [1 taxon], Mecardonia [1 taxon], Mecranium [6 taxa], Medicago [856 taxa], Medicosma [1 taxon], Medinilla [1 taxon], Medythia [1 taxon], Megalodochium [2 taxa], Megalospora [1 taxon], Megaloxyphium [25 taxa], Megarrhiza [1 taxon], Megaspora [1 taxon], Megaster [5 taxa], Meibomia [14 taxa], Melaleuca [13 taxa], Melampodium [11 taxa], Melampsora [14 taxa], Melampsoridium [10 taxa], Melampyrum [117 taxa], Melanagromyza [1 taxon], Melanconis [1 taxon], Melanconium [7 taxa], Melandrium [139 taxa], Melandryum [1 taxon], Melanelia [2 taxa], Melanitis [1 taxon], Melanocenchris [1 taxon], Melanocephala [16 taxa], Melanochyla [1 taxon], Melanographium [15 taxa], Melanomma [4 taxa], Melanopsamma [1 taxon], Melanospora [17 taxa], Melanosporella [3 taxa], Melanotheca [3 taxa], Melanthera [101 taxa], Melanthesa [4 taxa], Melasmia [3 taxa], Melasphaerula [6 taxa], Melaspilea [5 taxa], Melastiza [5 taxa], Melastoma [14 taxa], Meleagrinex [2 taxa], Melia [109 taxa], Melianthus [9 taxa], Melica [35 taxa], Melicocca [7 taxa], Melicoccus [41 taxa], Melicope [1 taxon], Melicytus [1 taxon], Melilobium [2 taxa], Melilotus [457 taxa], Melinis [79 taxa], Meliola [936 taxa], Meliolina [2 taxa], Meliolinopsis [1 taxon], Melioliphila [30 taxa], Meliolis [1 taxon], Meliosma [17 taxa], Melissa [2 taxa], Melittis [1 taxon], Melloa [3 taxa], Melo [23 taxa], Melocactus [1 taxon], Melocanna [1 taxon], Melochia [20 taxa], Meloderma [14 taxa], Melodinus [1 taxon], Melodorum [1 taxon], Melogramma [1 taxon], Meloidogyne [12 taxa], Melomastia [1 taxon], Melothria [48 taxa], Memecylon [70 taxa], Memnoniella [31 taxa], Mendoncia [4 taxa], Menispermum [5 taxa], Menispora [23 taxa], Menisporopsis [28 taxa], Mentaxya [1 taxon], Mentha [306 taxa], Menyanthes [3 taxa], Menziesia [12 taxa], Mephitidia [1 taxon], Meratia [2 taxa], Mercurialis [43 taxa], Meriania [7 taxa], Merismatium [3 taxa], Merismella [6 taxa], Merostictis [1 taxon], Merremia [68 taxa], Mertensia [2 taxa], Mesembryanthemum [13 taxa], Mesosetum [1 taxon], Mespilus [164 taxa], Mesua [9 taxa], Metacapnodium [37 taxa], Metalasia [2 taxa], Metalepis [1 taxon], Metaleurodicus [3 taxa], Metamasius [2 taxa], Metaplexis [2 taxa], Metasequoia [26 taxa], Metasphaeria [24 taxa], Metazythia [1 taxon], Metisa [2 taxa], Metopium [12 taxa], Metopolophium [1 taxon], Metrosideros [12 taxa], Mettenia [5 taxa], Meyenia [1 taxon], Meyna [6 taxa], Mezoneurum [8 taxa], Micarea [3 taxa], Michelia [38 taxa], Miconia [598 taxa], Micraira [3 taxa], Micranthus [3 taxa], Microascus [4 taxa], Microbotryodiplodia [1 taxon], Microcalicium [3 taxa], Microcalliopsis [45 taxa], Microcallis [13 taxa], Microchloa [4 taxa], Microclava [6 taxa], Microcycas [12 taxa], Microcyclus [2 taxa], Microdiplodia [99 taxa], Microdochium [4 taxa], Microelus [1 taxon], Microglossa [10 taxa], Microlaena [4 taxa], Micromeria [2 taxa], Micromucor [2 taxa], Micromyriangium [1 taxon], Micropeltella [146 taxa], Micropeltidium [111 taxa], Micropeltis [726 taxa], Micropeltopsis [5 taxa], Micropholis [16 taxa], Micropodia [1 taxon], Micropyxis [1 taxon], Microrhynchus [1 taxon], Microsoma [1 taxon], Microsorum [5 taxa], Microsphaera [54 taxa], Microsphaeropsis [28 taxa], Microspora [2 taxa], Microstegia [1 taxon], Microstegium [4 taxa], Microsteris [1 taxon], Microstrobos [1 taxon], Microstroma [1 taxon], Microthecium [1 taxon], Microthyriella [183 taxa], Microthyrina [4 taxa], Microthyriolum [15 taxa], Microthyrium [75 taxa], Microtus [6 taxa], Microxiphium [150 taxa], Microxyphiella [28 taxa], Microxyphiomyces [323 taxa], Microxyphiopsis [31 taxa], Microxyphium [611 taxa], Miersia [3 taxa], Mikania [221 taxa], Milium [25 taxa], Miliusa [14 taxa], Milla [2 taxa], Milleria [5 taxa], Millettia [65 taxa], Millingtonia [10 taxa], Milospium [1 taxon], Mimegralla [1 taxon], Mimosa [153 taxa], Mimulopsis [2 taxa], Mimulus [3 taxa], Mimusops [161 taxa], Mindoa [9 taxa], Minquartia [7 taxa], Minuartia [9 taxa], Mirabilis [16 taxa], Miratio [2 taxa], Misanteca [14 taxa], Miscanthidium [20 taxa], Miscanthus [30 taxa], Mischocarpus [4 taxa], Mischocyttarus [3 taxa], Misodendrum [3 taxa], Mitchella [6 taxa], Mitracarpum [1 taxon], Mitracarpus [5 taxa], Mitragyna [37 taxa], Mitraria [1 taxon], Mitrocarpus [2 taxa], Mitrula [2 taxa], Mitteriella [2 taxa], Miyagia [1 taxon], Mnesithea [4 taxa], Mnium [3 taxa], Moacroton [1 taxon], Modecca [1 taxon], Moehringia [24 taxa], Moghania [5 taxa], Molinia [39 taxa], Molleriella [2 taxa], Mollinedia [1 taxon], Mollisia [39 taxa], Mollisiella [1 taxon], Mollisina [1 taxon], Mollugo [8 taxa], Momordica [81 taxa], Monacrosporiella [1 taxon], Monacrosporium [4 taxa], Monadenia [3 taxa], Monarda [17 taxa], Monechma [1 taxon], Moneses [1 taxon], Monilia [1 taxon], Monilinia [2 taxa], Monnieria [3 taxa], Monnina [13 taxa], Monochaetia [20 taxa], Monochaetinula [1 taxon], Monochaetum [15 taxa], Monochoria [5 taxa], Monocillium [1 taxon], Monocymbium [13 taxa], Monodictys [56 taxa], Monodora [2 taxa], Monodorus [5 taxa], Monosporium [3 taxa], Monotes [7 taxa], Monotrichum [2 taxa], Monsonia [19 taxa], Monstera [21 taxa], Montagnula [1 taxon], Montanoa [9 taxa], Montbretia [1 taxon], Montezuma [8 taxa], Montia [1 taxon], Montinia [8 taxa], Montrichardia [2 taxa], Moorella [2 taxa], Moquilea [7 taxa], Moquinia [1 taxon], Mora [2 taxa], Moraea [16 taxa], Morchella [1 taxon], Morelia [3 taxa], Morenoella [7 taxa], Morfea [9 taxa], Morfea [32 taxa], Moricandia [1 taxon], Morina [3 taxa], Morinda [45 taxa], Moringa [27 taxa], Morisonia [2 taxa], Mormolyce [1 taxon], Moronobea [4 taxa], Mortierella [21 taxa], Morus [754 taxa], Moscharia [1 taxon], Moschus [1 taxon], Mosla [4 taxa], Motandra [12 taxa], Mougeotia [2 taxa], Mouriri [18 taxa], Mucor [3 taxa], Mucor [65 taxa], Mucuna [108 taxa], Muehlenbeckia [31 taxa], Muehlenbergia [4 taxa], Muellerella [14 taxa], Muhlenbergia [7 taxa], Mukia [1 taxon], Mukivera [4 taxa], Mulgedium [5 taxa], Mulinum [11 taxa], Mundulea [32 taxa], Muntingia [3 taxa], Murdannia [3 taxa], Muricaria [1 taxon], Murraya [73 taxa], Mus [4 taxa], Musa [1123 taxa], Musca [19 taxa], Muscadinia [1 taxon], Muscari [30 taxa], Muscia [1 taxon], Mussaenda [18 taxa], Mustela [1 taxon], Mutisia [3 taxa], Myagrum [6 taxa], Myceliophthora [1 taxon], Mycelis [41 taxa], Mycena [31 taxa], Mycerema [2 taxa], Mycetia [1 taxon], Mycobilimbia [5 taxa], Mycoblastus [1 taxon], Mycocentrospora [1 taxon], Mycociferria [3 taxa], Mycoenterolobium [10 taxa], Mycogloea [1 taxon], Mycogone [31 taxa], Mycolangloisia [4 taxa], Mycopara [1 taxon], Mycophaga [2 taxa], Mycosphaerella [442 taxa], Mycostevensonia [63 taxa], Mycovellosiella [5 taxa], Mygale [3 taxa], Myginda [1 taxon], Mylabris [1 taxon], Myllocerus [3 taxa], Myoporum [1 taxon], Myoschilos [3 taxa], Myosotis [50 taxa], Myosoton [1 taxon], Myrceugenia [64 taxa], Myrcia [73 taxa], Myrcianthes [2 taxa], Myriactis [6 taxa], Myriangiella [66 taxa], Myriangina [2 taxa], Myriangium [1 taxon], Myrica [139 taxa], Myricaria [20 taxa], Myriocarpa [2 taxa], Myriococcum [1 taxon], Myriophyllum [117 taxa], Myriostylis [2 taxa], Myriotrema [1 taxon], Myripnois [2 taxa], Myristica [44 taxa], Myrospermum [1 taxon], Myrothecium [11 taxa], Myroxylon [5 taxa], Myrsine [52 taxa], Myrtekmania [3 taxa], Myrtia [9 taxa], Myrtus [77 taxa], Mysia [118 taxa], Mystus [3 taxa], Mythimna [2 taxa], Myxofusicoccum [5 taxa], Myxosporium [2 taxa], Myzocytium [3 taxa], Myzus [15 taxa]