Some lycopods are still around today, like the low-lying, water-loving club mosses and quillworts.

一些石松类动物今天仍然存在，比如地势低洼、喜水的泥炭藓和金针茅。

There were tall grasses, ferns, lycopods, besides sigillaria, asterophyllites, now scarce plants, but then the species might be counted by thousands.

有高草、蕨類植物、鱗葉植物, 此外還有絲藻、小葉植物, 這些植物現在稀少, 但當時的物種可能以千計。

This is because scale trees were a type of plant called lycopods, which originated way back in the Silurian Period -- before seeds were even a thing!

这是因为鳞片树是一种叫做石松的植物，起源于志留纪时期——甚至在种子出现之前！

But lycopods were also the earliest vascular plants, which means they were the first plants to contain xylem, a special tissue that moves water and nutrients from the roots to the leaves.

但石松属也是最早的维管植物，这意味着它们是最早含有木质部的植物，木质部是一种特殊的组织， 可以将水分和养分从根部输送到叶子。