Polypodium fragile Linnaeus, Flora Anglica: 25. 1754.

["Habitat in collibus Europae frigidioris."] Sp. Pl., ed. 2, 2: 1553 (1763). RCN: 7904.

Lectotype (Copeland in Univ. Calif. Publ. Bot. 16: 56. 1929): Amman 52, Herb. Linn. No. 1251.51 (LINN) .

Current name: Cystopteris fragilis (L.) Bernh. ( Dryopteridaceae).

Note: In accordance with Art. 23.8, Ex. 19 of the Code, P. filix-fragile L. (1753) is to be treated as P. fragile .