psilophyte是什么意思

n.[植]裸蕨植物

1. Psilophytes were dominant plants in the early Devonian period.
早泥盆世时期，蕨状植物是主要的植物。

2. Psilophytes lack true roots and leaves, but they were important in the evolution of vascular plants.
蕨类缺乏真正的根和叶，但在维管植物的进化中起到了重要作用。

一种古老的裸子植物，具有细长的叶子和较简单的构造。