Gabertia
Galeandra
Galearis
Galeoglossum
Galeola
Galeorchis
Galeottia
Galeottiella
Galera
Gamaria
Gamoplexis
Gamosepalum
Garaya
Garayanthus
Garayella
Gastrochilus
Gastrodia
Gastroglottis
Gastrophaius
Gastropodium
Gastrorchis
Gastrosiphon
Gavilea
Geesinkorchis
Geissanthera
Gennaria
Genoplesium
Genyorchis
Geoblasta
Geodorum
Georchis
Gerardoa
Gerlachia
Ghiesbreghtia
Gigliolia
Giulianettia
Glomera
Glossaspis
Glossochilopsis
Glossodia
Glossorhyncha
Glossula
Goadbyella
Goldschmidtia
Gomesa
Gomphichis
Gonatostylis
Gongora
Goniochilus
Gonogona
Goodyera
Gorgoglossum
Govenia
Govindooia
Gracielanthus
Grafia
Grammangis
Grammatophyllum
Grandiphyllum
Graphorkis
Grastidium
Gravendeelia
Greenwoodia
Greenwoodiella
Grobya
Grosourdya
Guanchezia
Guarianthe
Gudrunia
Gularia
Gunnarella
Gunnarorchis
Gunnia
Gussonea
Gyaladenia
Gyalanthos
Gyas
Gymleucorchis
Gymnabicchia
Gymnacamptis
Gymnadenia
Gymnadeniopsis
Gymnaglossum
Gymnanacamptis
Gymnaplatanthera
Gymnigritella
Gymnochilus
Gymnorchis
Gymnotraunsteinera
Gymplatanthera
Gynizodon
Gynoglottis
Gyrostachys
