The flour grains came mostly from cattails and ferns, plants whose roots are rich in starch, kind of like a potato.
面粉主要来自于香蒲和蕨类植物，这些植物的根富含淀粉，有点像土豆。
They were followed by the emergence of fish, reptiles, mammals, ferns, conifers and flowering plants.
在这之后出现了鱼类，爬行类，哺乳动物，蕨类，针叶树和开花的植物。
Quickest to relocate, not surprisingly, were plants such as herbs, ferns and mosses with shorter life spans and faster reproduction cycles, the researchers said.
毫无疑问的，这种变化在那些生命周期短，繁殖迅速的植物——如草本植物、蕨类和苔藓类——中体现的更为明显。
应用推荐