Studies of floral biology, breeding characters of Lamium barbatum A PRELIMINARY STUDY ON FLORAL SYNDROMA AND BREEDING SYSTEM OF THE RARE PLANT RHODIOLA DUMULOSA Preliminary Study on Floral Syndroma and Breeding System for Five Species of Rehmannia (Scrophulariaceae) Study on Mating System of 3 Elymus spp. Floral Syndrome and Breeding System of Agapanthus praecox ssp. orientalis‘Big Blue’ Floral Syndrome and Breeding System of Agapanthus praecox ssp. orientalis‘Big Blue’ Comparative Studies on Floral Dynamics and Breeding System Between Eleutherococcus senticosus and E.sessiliflorus