Impacts of arbuscular mycorrhizal fungi and phosphorus on growth dynamics of Bauhinia faberi seedlings Pollen and resource limitations to lifetime seed production in a wild population of the endangered plant Disanthus cercidifolius Maxim. var.longipes H.T.Chang(Hamamelidancae) Pollen and Resource Limitation in Veratrum nigrum L. (Liliaceae), an Andromonoecious Herb Pollen and resource limitations to fruit set of Qingyangshen (Cynanchum otophyllum) Variation in Floral Sex Allocation and Reproductive Success in Sequentially Flowering Inflorescence of Corydalis remota var. lineariloba (Fumariaceae) Pollen and resource limitations to lifetime seed production in a wild population of Ceratoides arborescens