Macarthuriaceae Christenh.
Phytotaxa 181:240 (2014)
Magnaporthaceae
Makinoaceae
Malvaceae Juss.
Gen.Pl. [Jussieu] 271 (1789)
Marantaceae R.Br.
Voy.Terra Austral. 2:575 (1814)
Marasmiaceae Kühner
Bull.Mens.Soc.Linn.Lyon 49:76 (1980)
Marchantiaceae Lindl.
Nat.Syst.Bot. edn. 2:412 (1836)
Marsileaceae Mirb.
Hist.Nat.Vég. 5:126 (1802)
Marthamycetaceae Baral, Lantz, Hustad & Minter
Index Fungorum 225:2-3 (2015)
Martyniaceae Horan.
Massariaceae
Mastophoraceae (Setch.) R.A.Towns. & Huisman
Algae of Australia: Marine Benthic Algae of North-western Australia, 2. Red Algae 110 (2018)
Meesiaceae Schimp.
Coroll.Bryol.Eur. 82 (1856)
Megalariaceae Hafellner
Beih.Nova Hedwigia 79:302 (1984)
Megalosporaceae Hafellner & Bellem.
Nova Hedwigia 35:216 (1982)
Megasporaceae Lumbsch
J.Hattori Bot.Lab. 75:302 (1994)
Melampsoraceae
Melanogastraceae
Melanotaeniaceae Begerow, R.Bauer & Oberw.
Canad.J.Bot. 75:2053 (1997)
Melaspileaceae Walt.Watson
New Phytol. 28:94 (1929)
Melastomataceae Juss.
Gen.Pl. [Jussieu] 328 (1789)
Meliaceae Juss.
Gen.Pl. [Jussieu] 263 (1789)
Melianthaceae Horan.
Prim.Lin.Syst.Nat. 100 (1834)
Meliolaceae
Meliolinaceae
Menispermaceae Juss.
Gen.Pl. [Jussieu] 284 (1789)
Menyanthaceae Dumort.
Anal.Fam.Pl. p20, 25 (1829)
Meruliaceae Rea
Brit.Basidiomyc. 620 (1922)
Mesophelliaceae Jülich
Biblioth.Mycol. 85:379 (1982)
Mesoptychiaceae
Meteoriaceae
Metzgeriaceae H.Klinggr.
Höh.Crypt.Preuss. 10 (1858)
Micareaceae Hafellner
Beih.Nova Hedwigia 79:306 (1984)
Microascaceae Malloch
Mycologia 62:734-735 (1970)
Microbotryaceae R.T.Moore
Mycotaxon 59:17 (1996)
Microcaliciaceae Tibell
Beih.Nova Hedwigia 79:701 (1984)
Microcoleaceae O.Strunecky, J.R.Johans. & Komárek
J.Phycol. 49:1176 (2013)
Microcystaceae Elenkin
Trudy Bot.Inst.Akad.Nauk S.S.S.R., Ser. 2, Sporov.Rast. 1:19 (1933)
Micropeltidaceae
Microthyriaceae
Mimosaceae R.Br.
Voy.Terra Austral. 2:551 (1814)
Mitosporic Fungi
Mitteniaceae
Mizutaniaceae
Mniaceae Schwägr.
Sp.Musc.Frond. 25 (1830)
Molluginaceae Bartl.
Beitr.Bot. 2:158 (1825)
Monoblastiaceae Walt.Watson
New Phytol. 28:106 (1929)
Monocarpaceae Schelpe
J.S.African Bot. 35:110 (1969)
Monocleaceae
Monosoleniaceae
Monostromataceae
Montiaceae Raf.
Ann.Gen.Sci.Phys. 5:349 (1820)
Moraceae Gaudich.
Gen.Pl. p13 (1835)
Morchellaceae Rchb.
Consp.Regn.Veg. 172 (1828)
Moringaceae Martinov
Tekhno-Bot.Slovar 404 (1820)
Musaceae Juss.
Mycenaceae Overeem
Icon.Fungorum Malayensium 14 (1926)
Mycenastraceae
Mychodeaceae Kylin
Acta Univ.Lund. ser. 2, 28:62 (1932)
Mychodeophyllidaceae
Mycobilimbiaceae Hafellner
Beih.Nova Hedwigia 79:308 (1984)
Mycoblastaceae Hafellner
Beih.Nova Hedwigia 79:310 (1984)
Mycocaliciaceae A.F.W.Schmidt
Mitt.Staatsinst.Allg.Bot.Hamburg 13:127 (1970)
Mycoporaceae Zahlbr.
Nat.Pflanzenfam. [Engler & Prantl] I(1):77 (1903)
Mycosphaerellaceae Lindau
Nat.Pflanzenfam. [Engler & Prantl] I(1):421 (1897)
Myoporaceae R.Br.
Prodr.Fl.Nov.Holland. 514 (1810)
Myriangiaceae Nyl.
Mém.Soc.Sci.Nat.Cherbourg 2:9 (1854)
Myristicaceae R.Br.
Prodr.Fl.Nov.Holland. 399 (1810)
Myrsinaceae R.Br.
Prodr.Fl.Nov.Holland. 532 (1810)
Myrtaceae Juss.
Gen.Pl. [Jussieu] 322 (1789)
Myuriaceae
Myxomycota (division/family fudge)