GENUS |
ABBREVIATION |
COMPOSITION |
| Ione | Ione* | Natural |
| Ionettia | Intta | Comp x Inps |
| Ionocidium | Incdm | Inps x Onc |
| Ionopsis | Inps | Natural |
| Irvingara | Irv | Arach x Ren x Trgl |
| Isabelia | Isblia | Natural |
| Isaoara | Isr | Aer x Asctm x Phal x V |
| Isochilus | Ischls | Natural |
| Iwanagara | Iwan | B x C x Diacm x L |
| Izumiara | Izma | C x Epi x L x Schom x Soph |
| Jacquiniella | Jacqnl | Natural |
| Jewellara | Jwa | Bro x C x Epi x L |
| Jimenezara | Jmzra | Bro x L x Lps |
| Joannara | Jnna | Ren x Rhy x V |
| Johnkellyara | Jkl | Brs x Lchs x Onc x Rdza |
| Johnyeeara | Jya | B x C x Epi x L x Schom x Soph |
| Jumanthes | Jmth | Aerth x Jum |
| Jumellea | Jum | Natural |