Zygopteraceae

plural noun

Zy·​gop·​ter·​a·​ce·​ae

zīˌgäptəˈrāsēˌē

: a family of primitive Paleozoic ferns of Europe and the U.S. having pinnae in two or four series at an angle to the plane of the leaf blade

Word History

Etymology

New Latin, from Zygopteris, type genus + -aceae

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