The orchid Oncidium Portia is a hybrid in the
Oncidium genus.
registered with the Royal Horticultural Society
by Mansell & Hatcher in 1916.
Registered parents are
Oncidium Vuylstekeae
×
Oncidium Illustrissimum.
The key influencing species of this hybrid are
Oncidium nobile (43.75%
subgenus
Odontoglossum
)
Oncidium noezlianum (25.00%
)
Oncidium alexandrae (25.00%
)
listed in order of their genetic contribution.