GENUS	ABBREVIATION	COMPOSITION
Yahiroara	Yhra	B x C x Epi x L x Schom
Yamadara	Yam	B x C x Epi X L
Yapara	Yap	Phal x Rhy x V
Yeeara	Yra	B x Bro x C x Epi x L x Schom x Soph
Yeepengara	Ypga	Aer x Phal x Rhy x V
Yoneoara	Ynra	Ren x Rhy x Vdps
Yonezawaara	Yzwr	Neof x Rhy x V
Ypsilopus	Ypslp*	Natural
Yusofara	Ysfra	Arach x Asctm x Ren x V
Zootrophion	Ztrphn	Natural
Zygobatemannia	Zbm	Btmna x Z
Zygocaste	Zcst	Lyc x Z
Zygocella	Zcla	Mdcla x Z
Zygocolax	Zcx	Clx x Z
Zygodisanthus	Zdsnth	Pdsnth x Z
Zygolum	Zglm	Z x Zspm
Zygoneria	Zga	Ngda x Z
Zygonisia	Zns	Agn x Z
Zygopetalum	Z	Natural
Zygorhyncha	Zcha	Chdra x Z
Zygosepalum	Zspm	Natural
Zygostates	Zygsta	Natural
Zygostylis	Zsts	Otst x Z
Zygotorea	Zgt	Pes x Z
Zygowarrea	Zwr	Wra x Z