The orchid Oncidium Cromer is a hybrid in the
Oncidium genus.
registered with the Royal Horticultural Society
by Charlesworth Ltd. in 1923.
Registered parents are
Oncidium Charlesworthii
×
Oncidium Joan.
The key influencing species of this hybrid are
Oncidium noezlianum (37.50%
)
Oncidium harryanum (37.50%
subgenus
Nevadensia
)
Oncidium alexandrae (12.50%
)
listed in order of their genetic contribution.