Ferns that evolved from 400 million years ago show various functional traits and ecological strategies in extant species......

蕨类水龙骨目（polypodiale）孢子的发育过程简单,繁殖力强,且易大量收集,是蕨类植物孢子萌发研究、蕨类人工繁殖研究的理想试验选材.......

In this research three new species of ferns of the Polypodiales Order are described: Ctenitis leonii A. Rojas, Elaphoglo......