New Combinations in Armeniaca Mill. and Cerasus Juss. (Rosaceae)
杏属和樱属植物新组合

Two new combinations are made here in the family Rosaceae. Prunus hypotri- chodes is transferred to Armeniaca, and Prunus laxiflora to Cerasus. Further evidence showed G. V. Eremin et V. S. Simagin's treatment, transfering Padus maackii to Cera- sus, is reasonable. Small leaves and/or green or brown bracteoles on inflorescences of Cera- sus maackii indicate the origin of bracteoles and the different stages of their evolution within the genus Cerasus Mill. Cerasus laxiflora is considered as the most primitive one in thespecies with brown bracteoles.