Vascular plants are 更多 suited to living on drier land than mosses and liverworts.
They have branching stems with tubelike walls that carry water and nutrients.
These stems and walls also mean the plants can stand tall. Vascular plants have spores (reproductive cells, like seeds)-the taller the plant, the 更多 widely it can disperse its spores.
One of the first known vascular plants was Cooksonia. It was about 2 inches tall, with a forked stem.
Paleontologists discovered fossil remains of Cooksonia in England.
Rhynie in Scotland is one site where lots of vascular plant fossils have been found....
continue reading...
