Floristics is the study of floras, including the preparation of Floras.植物區(qū)系學(xué)是研究植物區(qū)系的一門學(xué)科, 其中包括編寫植物志.We shall appreciate this difficulty more clearly, by looking to certain existing faunas and floras.通過(guò)觀察某些現(xiàn)存的動(dòng)物群和植物群,我們就能...