 The "World Checklist of Selected Plant Families", maintained by the Royal Botanic Gardens at Kew, is recognized by the American Orchid Society as the definitive authority on orchid taxonomy.The "Checklist" currently acknowledges 31 species of "Lycaste", 3 natural hybrids, 2 subspecies (and 1 nominate subspecies), and 1 variety.Orchid growers and orchid collectors, who tend to be taxonomic "splitters" more often than "lumpers" (see lumpers and splitters), recognize additional subspecies and varieties of "Lycaste", as well as alba (white) forms of several species.