]> [author note: Herbarium and types: LZ (exclusive of the ferns, destroyed), fern herbarium at B (extant); additional important setof ferns at W; additional material at E, FR] [collector note: Herbarium: LZ (now destroyed), Fern herbarium: B (acquired between 1870-75), North America (ex. herb.): L, Czechoslovakia: LZ, Europe: E (Pter.), Germany: LZ, W, North Sea: KIEL (Alg.), Peru: E (Pter.)] Botany Mettenius, Georg Heinrich Mettenius, Georg Heinrich G. H. Mettenius Mett. Mettenius Georg Heinrich Mettenius 1823 1866