[Studies on the floral morphology of Flos Lonicerae]

Pollen grains, petal, corolla tube and stigma of two species of Flos Lonicerae from 11 habitats in China were examined by the light microscope (LM) and scanning electron microscope (SEM). The difference between the species, Lonicera japonica and L. hypoglauca, existed in the pollen grains, colporates, exines and the omamentations. Characteristics obviously varied in different species and were closely related to geographic distribution among the species. The results might provide a scientific basis for the quality evaluation of Genuine Crude Drug, and for the identification of varieties.