Only modern taxonomic treatment. This is the first monograph of the tulip since 1941. It is the only taxonomic source for the genus with information on the botanic species in the genus centres. It provides a systematic review; general morphology; morphological descriptions of wild species; Middle Asian centres of diversity; Karyosystematic investigations; Polyploidy; seed and its germination; development of seedling growth of juvenile and generative shoot; annual cycle of adult bulb; and environmental influeneces.