Polypodium fragile Linnaeus , Flora Anglica : 25. 1754 Chapter 7: Linnaean Plant Names and their Types (part P) Jarvis, Charlie (L.) Bernh. Bernh. Linnaeus 1753 Polypodiopsida Cystopteridaceae Cystopteris Plantae Polypodiales Tracheophyta species fragilis      Polypodium fragileLinnaeus,  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).   Note:In accordance with Art. 23.8, Ex. 19 of the Code,  P. filix-fragileL. (1753)is to be treated as  P. fragile. 2611900769 LINN 1251.51 lectotype