权威例句
HelleborusHelleborusThe ultrastructure and ontogeny of pollen in Helleborus foetidus L. IV. Pollen grain maturation.The ultrastructure and ontogeny of pollen in Helleborus foetidus L. 3. The formation of the pollen grain wallPollinator foraging modifies nectar sugar composition in Helleborus foetidus (Ranunculaceae):An experimental test.The ultrastructure and ontogeny of pollen in Helleborus foetidus L. I. The development of the tapetum and Ubisch bodies. J Cell Sci ...Geographical variation in diaspore traits of an ant-dispersed plant (Helleborus foetidus): are ant community composition and diaspor...Post-floral perianth functionality: contribution of persistent sepals to seed development in Helleborus foetidus (Ranunculaceae).Floral integration, phenotypic covariance structure and pollinator variation in bumblebee‐pollinated Helleborus foetidusGeographical Variation in Autonomous Self-Pollination Levels Unrelated to Pollinator Service in Helleborus foetidus (Ranunculaceae)