GÊNERO |
ABREVIAÇÃO |
COMPOSIÇÃO |
| Maccolmara | Mclm | Chnts x Clx x Prom x Z |
| Maccoyara | Mcyra | Aer x V x Vdps |
| Macekara | Maka | Arach x Phal x Ren x V x Vdps |
| Maclellanara | Mclna | Brs x Odm x Onc |
| Maclemoreara | Mclmra | B x L x Schom |
| Macodes | Mac | Natural |
| Macomaria | Mcmr | Haem x Mac |
| Macradenia | Mcdn | Natural |
| Macradesa | Mcdsa | Gom x Mcdn |
| Macroclinium | Mcrcln | Natural |
| Mailamaiara | Mai | C x Diacm x L x Schom |
| Malaxis | Mlxs | Natural |
| Malcolmcampbellara | Mcba | Dry x Plrhz x Sarco |
| Masdevallia | Masd | Natural |
| Masonara | Msna | Agn x Btmna x Clx x Otst x Prom x Z x Zspm |
| Matsudaara | Msda | Bark x C x L x Soph |
| Maunderara | Mnda | Ada x Cda x Milt x Odm x Onc |
| Maxillacaste | Mxcst | Lyc x Max |
| Maxillaria | Max | Natural |
| Maxilobium | Mxlb | Max x Xyl |
| Maymoirara | Mymra | C x Epi x Lps |
| Mediocalcar | Medi | Natural |
| Meechaiara | Mchr | Asctm x Dor x Phal x Rhy x V |
| Megaclinium | Megac | Natural |
| Meiracyllium | Mrclm | Natural |
| Menadenium | Mndnm | Natural |
| Mendoncella | Mdcla | Natural |
| Mendosepalum | Mdspl | Mdcla x Zspm |
| Mexicoa | Mxc | Natural |
| Micholitzara | Mchza | Aer x Asctm x Neof x V |
| Microcoelia | Mcrcoel | Natural |
| Micropera | Micr | Natural |
| Milpasia | Mpsa | Asp x Milt |
| Milpilia | Mpla | Milt x Trpla |
| Miltada | Mtad | Ada x Milt |
| Miltadium | Mtadm | Ada x Milt x Onc |
| Miltarettia | Mtta | Comp x Milt |
| Miltassia | Mtssa | Brs x Milt |
| Miltistonia | Mtst | Bapt x Milt |
| Miltonia | Milt | Natural |
| Miltonidium | Mtdm | Milt x Onc |
| Miltonioda | Mtda | Cda x Milt |
| Miltonioides | Mltnds | Natural |
| Miltoniopsis | Mltnps | Natural |
| Mischobullbum | Mschbl* | Natural |
| Mizutara | Miz | C x Diacm x Schom |
| Moirara | Moir | Phal x Ren x V |
| Mokara | Mkra | Arach x Asctm x V |
| Monkhouseara | Mkhsa | Agn x Btmna x Clx x Otst x Z x Zspm |
| Monnierara | Monn | Ctsm x Cyc x Morm |
| Monomeria | Mnmria | Natural |
| Moonara | Mnra | Aer x Asctm x Neof x Rhy |
| Mooreara | Mora | B x Bro x C x L x Schom x Soph |
| Mormodes | Morm | Natural |
| Mormolyca | Mlca | Natural |
| Morrisonara | Mrsa | Ada x Milt x Odm |
| Moscosoara | Mscra | Bro x Epi x Lps |
| Mynxanthus | Mnxths | Natural |
| Mystacidium | Mycdm | Natural |
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| Nageliella | Ngl | Natural |
| Nakagawaara | Nkgwa | Aer x Dor x Phal |
| Nakamotoara | Nak | Asctm x Neof x V |
| Nanodes | Nands | Natural |
| Nashara | Nash | Bro x Ctps x Diacm |
| Naugleara | Naug | Asctm x Ascgm x Ren |
| Necogniauxia | Ncgnx* | Natural |
| Neoaeristylis | Nrst | Aer x Neof x Rhy |
| Neobathiea | Nbth | Natural |
| Neobatopus | Nbps | Crypt x Nbth |
| Neobenthamia | Nbnthm | Natural |
| Neocogniauxia | Ncgnx* | Natural |
| Neodryas | Ndrys* | Natural |
| Neofinetia | Neof | Natural |
| Neogardneria | Ngda | Natural |
| Neoglossum | Neogm | Ascgm x Neof |
| Neograecum | Ngrcm | Asgcm x Neof |
| Neokoehleria | Nkhlr | Natural |
| Neolauchea | Nlcha* | Natural |
| Neolehmannia | Nlmnn* | Natural |
| Neomoorea | Nmrea* | Natural |
| Neostylis | Neost | Neof x Rhy |
| Ngara | Ngara | Arach x Ascgm x Ren |
| Nobleara | Nlra | Aer x Ren x V |
| Nonaara | Non | Aer x Ascgm x Ren |
| Nornahamamotoara | Nhmta | Aer x Rhy x Vdps |
| Northenara | Nrna | C x Epi x L x Schom |
| Norwoodara | Nwda | Brs x Milt x Onc x Rdza |
| Notylettia | Ntlta | Comp x Nlt |
| Notylia | Ntl | Natural |
| Notylidium | Ntldm | Ntl x Onc |
| Notylopsis | Ntlps | Inps x Ntl |