The orchid Cattleya Louvain is a hybrid in the
Cattleya genus.
registered with the Royal Horticultural Society
by Sanders[St Albans] in 1924.
Registered parents are
Cattleya Endymion
×
Cattleya rex.
The key influencing species of this hybrid are
Cattleya rex (50.00%
subgenus
Cattleya
section:
Cattleya
)
Cattleya gaskelliana (25.00%
subgenus
Cattleya
section:
Cattleya
)
Cattleya tenebrosa (25.00%
subgenus
Crispae
section:
Crispae
series:
Cattleyodes
)
listed in order of their genetic contribution.