A Comparison of Classifications of Families of Chinese VascularPlants among Flora Republicae Popularis Sinicae, Flora of China and the New Classifications Advances in molecular ecology of the oil-rich microalga Botryococcus braunii Effect of ITS Pseudogene on the Phylogenetic Study of Quercus ( Fagaceae) and Its Revelation on the Plant Molecular Phylogenetics Conflicting gene trees and phylogenomics