And that path is represented by a single branch coming off of the tree, meaning that bryophytes are monophyletic — they share a single common ancestor and are all more closely related to each other than to any other plant group.

路径由一棵树上一个分支来表示，意味着苔植物是单系——它们有一个共同祖先，彼此之系比与任何其他植物群体系都要密切。