Nyssaceae is a family of flowering trees formerly included in the dogwood family (Cornaceae) Nyssaceae is composed of 37 known species in the following five genera: \n* Nyssa, the tupelos: about 7-10 species in eastern North America and East to Southeast Asia \n* Camptotheca, the happy trees: two species in China \n* Davidia, the dove tree, handkerchief tree, or ghost tree: one species in central China \n* Diplopanax: two species in southern China and Vietnam \n* Mastixia: about nineteen species in Southeast Asia