Abstract: A study was made of Fritillaria crassicaulis，F．delavayi，F． przewaskii，F．davidii，and their related species in the Hengduan Mts．and its adjacent Regions．Of Fritillaria，eight species and one variety are recognized in this area，and names of four species，six varieties，one cultivated variety and one form are reduced as synonyms．

Key words: Fritillaria, Hengduan Mts. And Adjacent regions, Revision