Cattleya percivaliana

Cattleya percivaliana (literally Percival's Cattley's) is a species of orchid. It shares the common name of "Christmas Orchid" with C. trianae and Angraecum sesquipedale. The diploid chromosome number of C. percivaliana has been determined as 2n = 40. The haploid chromosome number has been determined as n = 20.