Here is a listing of some of the more important intergeneric hybrids,
the genera involved and their usual temperature range:

Temperature Key

W = Warm         I = Intermediate       C = Cool

ALICEARA [Alcra.] = (Brassia x Miltonia x Oncidium)
So far, these have utilized the Brazilian or warm Miltonia's. W-I-C

ASPOGLOSSUM [Ascgm.] = (Aspasia x Odontoglossum)
Heavy substance, flowers long lasting and shaped similar to the Odontoglossums. W-I-C

BAKERARA [Bak.] = (Brassia x Miltonia x Oncidium x Odontoglossum) W-I-C

BEALLARA [Bllra.] = (Brassia x Miltonia x Cochlioda x Odontoglossum)
A Super new intergeneric. See page 317 of the March 1980 A.O.S. Bulletin. W-I-C

BRASSIDIUM [Brsdm.] = (Brassia x Oncidium)
W-I unless a cool growing Oncidium used (then W-I-C)

BURRAGEARA [Burr.]= (Cochlioda x Miltonia x Odontoglossum x Oncidium) W-I-C

CARPENTERARA [Cptra.] = (Baptistonia x Oncidium x Odontoglossum)
Just one cross so far, but promising. Cross received an Award of Distinction from the A.O.S. W-I-C

COLMANARA [Colm.] = (Miltonia x Oncidium x Odontoglossum)
If made with Brazilian Miltonia and a "warm" oncidium: W-I-C. If made with Colombian (cool) Miltonia and/or a "cool" oncidium: I-C

DEGARMOARA [Dgmra.] = (Brassia x Miltonia x Odontoglossum)
This is usually made with a Miltassia involving a Brazilian Miltonia. W-I-C

FORGETARA [Fgtra.] = (Aspasia x Brassia x Miltonia)
With Brazilian Miltonia: W-I-C

GOODALEARA [Gdlra.] = (Brassia x Miltonia x Oncidium x Cochlioda x Odontoglossum)
A quadrigeneric named for the late W. W. Goodale Moir of Hawaii. So far the warm Brazilian Miltonia used: W-I-C

LAGERARA [Lgra.] = (Aspasia x Cochlioda x Odontoglossum)
A spectacular intergeneric producing fully shaped flowers of heavy substance and long lasting qualities. W-I-C

MACLELLANARA [Mclna.] = (Oncidium x Odontoglossum x Brassia)
The grex Pagan Lovesong has received numerous awards. W-I-C

MILPASIA [Mpsa.] = (Aspasia x Miltonia)
With Brazilian Miltonia: W-I; With Colombian Miltonia (also known as Miltoniopsis): W-I-C

MILTASSIA [Mtssa.] = (Brassia x Miltonia)
If Brazilian Miltonia used: W-I-C

MILTONIDIUM [Mtdm.] = (Miltonia x Oncidium)
If with Brazilian Miltonia: W-I-C

ODONTOBRASSIA [Odbrs.] = (Brassia x Odontoglossum)
Brassia shape dominates. W-I-C

ODONTOCIDIUM [Odcdm.] = (Odontoglossum x Oncidium)
This is usually W-I-C but depends on the Oncidium used

ODONTONIA [Odtna.] = (Miltonia x Odontoglossum) With Brazilian Miltonia: W-I-C. With Colombian Miltonia: I-C

SCHAFFERARA [Schfa.] = (Aspasia x Brassia x Cochlioda x Miltonia x Odontoglossum) W-I-C

VUYLSTEKEARA [Vuyl.] = (Cochlioda x Miltonia x Odontoglossum)
An older intergeneric using the Colombian Miltonia: I-C. New combinations however, utilizing the Brazilian Miltonia are: W-I-C (See page 1248 of December 1982 A.O.S. Bulletin)

WILSONARA [Wils.] = (Cochlioda x Odontoglossum x Oncidium)
A most satisfactory intergeneric! If made with a "cool" oncidium such as incurvum, or triginum: I-C. If made with a "warm" Oncidium such as maculatum or sphacelatum: W-I-C

WINGFIELDARA [Wgfa.] = (Aspasia x Brassia x Odontoglossum) W-I-C