Cattlianthe

Cattlianthe , abbreviated Ctt. in the horticultural trade, is the orchid nothogenus for intergeneric hybrid greges containing at least one ancestor species from each of the two ancestral genera "Cattleya" and "Guarianthe" , and from no other genera.
Since orchids in "Guarianthe" were placed in "Cattleya" before 2003, many orchids in "Cattlianthe" were previously placed directly in "Cattleya".