The orchid Cattleya Pretoria is a Cattleya hybrid.
registered with the Royal Horticultural Society
by Thwaites in 1914.
Registered parents are
Cattleya dowiana
×
Cattleya Peetersii (1902).
The key influencing species of this hybrid are
Cattleya dowiana (62.50%
subgenus
Cattleya
section:
Cattleya
)
Cattleya labiata (25.00%
subgenus
Cattleya
section:
Cattleya
)
Cattleya warscewiczii (12.50%
subgenus
Cattleya
section:
Cattleya
)
listed in order of their genetic contribution.