Polypodium triangulum Linnaeus , Species Plantarum 2 : 1088. 1753 Chapter 7: Linnaean Plant Names and their Types (part P) Jarvis, Charlie (L.) Linnaeus 1753 Polypodiopsida Dryopteridaceae Polystichum Plantae Polypodiales Tracheophyta species triangulum      Polypodium triangulumLinnaeus,  Species Plantarum2: 1088. 1753.  "Habitat in America." RCN: 7882.   Lectotype(Morton in Bot. J. Linn. Soc.60: 67. 1967): [icon] "Trichomanes folio triangulo dentato"in Petiver, Pteri-graphia Amer.: 76, t. 1, f. 10. 1712.   Note:Morton treated the cited Petiver illustration as the type though noting that it had been redrawn from a Plumier plate, via which Morton interpreted it. However, the Plumier plate was not cited in the protologue of this name.