The orchid Cattlianthe Little Tom is a hybrid in the
Cattlianthe genus.
registered with the Royal Horticultural Society
by Mrs Sands in 1970.
It is originated by Thornton's Orch.
Registered parents are
Cattleya Magbarola
×
Guarianthe aurantiaca.
The key influencing species of this hybrid are
Guarianthe aurantiaca (50.00%
subgenus
Circumvola
section:
Aurantiacae
)
Cattleya luteola (25.00%
subgenus
Stellata
)
Cattleya mossiae (15.63%
subgenus
Cattleya
section:
Cattleya
)
listed in order of their genetic contribution.