Abstract:Sect.Oreocapnos M. Popov of Corydalis Vent. is mainly characterized by having bulbs, they make up a natural group. In this section there are ten species all told, of which eight occur in China. It is divided into three series according to the shapes of the roots, they are: Ser. 1. Fibrosae C.Y. Wu et H. Chuang of tbe fibroUs roots not thickened, Ser, 2, Clapatqe C,Y, WU et H.Chuang of the thickened,fleshy,clavate,fibrous,roots,Eer.3.Fusi-formes C.Y. Wu et H.Chuang of the thickened,fleshy,fusiform fibrous roots.