摘要
Seventeen species and two varieties of Euphorbia,including one new variety,were found inGansu Province.They belong to three sections,viz.Sect.Anisophyllum:Euphorbia bumifusaWilld.;Sect.Petaloma:E.marginata Pursh;Sect.Tithymalus:E.micractina Boiss.,E.wangiiOudejans,E.heishuiensis W.T.Wang,E.hylonoma Hand.-Mzt.,E.ekinensis