Paper help# Biology - 生物学
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Ferns in an Angiosperm World: Cretaceous Radiation into the Epiphytic Niche
and Diversification on the Forest Floor
链接：
http://www.jstor.org/discover/10.1086/665974?uid=363308321&uid=
多谢！
and Diversification on the Forest Floor
链接：
http://www.jstor.org/discover/10.1086/665974?uid=363308321&uid=
多谢！