Lectotype (designated by J.Sm., Hist. Fil. 236. 1875): Cystopteris fragilis (L.) Bernh. (? Polypodium fragile L.)
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Lectotype (designated by J.Sm., Hist. Fil. 236. 1875): Cystopteris fragilis (L.) Bernh. (? Polypodium fragile L.)
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